Nurse practitioner billing is one of the most technically misunderstood areas in outpatient medical billing and the billing errors specific to NP practice cost providers thousands of dollars every month without anyone realizing it. (Nurse practitioner billing services)
The issues are structural and specific to how NPs are reimbursed. Medicare reimburses nurse practitioners at 85% of the physician fee schedule when services are billed under the NP’s own NPI. But when those same services qualify as incident-to services and are billed correctly under the supervising physician’s NPI, reimbursement rises to 100% of the physician fee schedule. Most practices don’t capture this distinction consistently or at all. The revenue difference compounds across every applicable visit.
Beyond the incident-to rule, NP billing involves state-specific scope-of-practice variations, credentialing requirements that directly affect claim outcomes, supervision documentation rules that vary by payer, a full E/M coding framework updated in 2021 that most NPs haven’t adapted to, and telehealth billing complexity that continues to evolve. Each of these creates its own category of preventable revenue loss.
At Malakos Healthcare Solutions, we provide specialized nurse practitioner billing services built around the specific rules, reimbursement structures, and compliance requirements that govern NP practice billing across every state and every payer type. More revenue captured on every qualifying visit, fewer denials, full compliance, and complete financial visibility so you can practice at the top of your scope without billing being the weak link.
Why Nurse Practitioner Billing Is More Complex Than Standard Medical Billing
The 85% vs. 100% Reimbursement Gap Is Real and Recoverable
Under Medicare, nurse practitioners are reimbursed at 85% of the physician fee schedule when billing independently under their own NPI. This is straightforward and well known.
What is less well understood is the incident-to billing rule a set of Medicare conditions under which services provided by an NP can be billed under the supervising physician’s NPI at 100% of the physician fee schedule. The difference is 15% on every qualifying claim. In a practice seeing 20+ patients per day, that gap is not a rounding error it is a material monthly revenue differential.
The challenge is that incident-to billing has strict eligibility requirements that must be met on every claim. When those requirements are not met, billing under the physician’s NPI for NP-rendered services is a compliance violation. Most practices either never attempt incident-to billing (leaving 15% on the table for every qualifying visit) or apply it inconsistently without verifying eligibility (creating compliance exposure). Neither is acceptable. The right answer is a billing workflow that correctly identifies qualifying visits, applies incident-to billing where appropriate, and bills under the NP’s NPI where it isn’t every time.
Scope of Practice Varies by State and Directly Affects What Can Be Billed
Nurse practitioners practice under three regulatory models in the United States:
- Full practice authority (FPA): The NP can evaluate, diagnose, treat, and prescribe independently without physician oversight. Currently recognized in roughly half of US states plus Washington DC.
- Reduced practice authority: The NP can provide some services independently but requires a collaborative agreement with a physician for certain functions (typically prescribing).
- Restricted practice authority: The NP must practice under physician supervision for all or most services.
Which model applies in your state directly affects how services must be billed, what supervision documentation is required, and whether incident-to billing is available. Billing services that fall outside the NP’s authorized scope in a given state or billing incident-to without a required supervisory relationship in place creates both claim denials and compliance risk.
Credentialing Under Your Own NPI Is the Foundation of Getting Paid
Every nurse practitioner must be credentialed and enrolled with each payer they bill individually, under their own NPI. Credentialing an NP is not the same as credentialing the practice or the supervising physician. Gaps in NP-specific payer enrollment result in claims being rejected, paid to the wrong provider, or held indefinitely.
New NPs coming into a practice, NPs taking on new payer contracts, and NPs whose credentials lapse without a renewal workflow all of these create credentialing gaps that manifest directly as billing failures. Credentialing and billing are inseparable in NP practice management.
Incident-To Billing Has Specific Requirements That Most Practices Don’t Track
The incident-to billing rule is frequently applied incorrectly either too broadly (creating compliance risk) or not at all (leaving 15% on the table for every qualifying visit). The requirements are specific:
To qualify for incident-to billing under Medicare:
- The service must be provided in the physician’s office or clinic setting (not in a hospital, SNF, or the patient’s home)
- The physician must have personally seen the patient and established the plan of care for the condition being treated
- The NP must be providing a service that falls within the established plan of care not initiating treatment for a new problem
- The supervising physician must be present in the office suite (not necessarily the same room, but in the office and available) at the time the NP provides the service
- The NP must be employed by or working under contract with the physician or the practice
When incident-to does NOT apply:
- New patient visits (the physician has not yet seen the patient and established a plan of care)
- New problems for established patients (the physician hasn’t established a plan for the new condition)
- Hospital, SNF, or home visits
- When the supervising physician is not in the office at the time of service
- In states that don’t recognize incident-to billing for NPs under state law
Billing incident-to when these conditions are not met is billing fraud. Not billing incident-to when these conditions are met is revenue loss. A correct NP billing workflow handles both sides of this distinction.
The 2021 E/M Changes Apply Fully to NP Practice And Most Haven’t Adapted
The 2021 AMA revisions to outpatient E/M coding eliminated the exam component and replaced the old three-key-component framework with medical decision-making complexity or total time. These changes apply equally to NP-rendered E/M services.
NPs managing patients with multiple chronic conditions, ordering and reviewing diagnostic tests, coordinating care with specialists, or spending extended time on documentation qualify for higher-level E/M codes under the new framework codes that were harder to justify under the old rules. Practices that haven’t updated their E/M coding habits since 2021 are systematically undercoding every complex visit.
NP Billing The Incident-To Rule: A Complete Decision Framework
Before billing any NP-rendered service, the following questions determine whether incident-to billing applies:
| Question | If Yes | If No |
|---|---|---|
| Is this a new patient? | → Bill under NP NPI (85%) | → Continue to next question |
| Is this a new problem for an established patient? | → Bill under NP NPI (85%) | → Continue |
| Has the physician personally seen the patient and established a documented plan for this condition? | → Continue | → Bill under NP NPI (85%) |
| Is the supervising physician physically present in the office suite right now? | → Continue | → Bill under NP NPI (85%) |
| Is the service within the established physician plan of care? | → Bill under physician NPI (100%) | → Bill under NP NPI (85%) |
Documentation requirement for incident-to: The physician’s initial visit establishing the plan of care must be documented in the patient record. The NP’s note must reflect that the service is a continuation of that plan. If the physician’s original visit and plan are not findable in the record on audit, incident-to billing is unsupported and creates recoupment risk.
Nurse Practitioner CPT Codes Complete Reference
Evaluation and Management Office and Outpatient
NPs use the same E/M CPT codes as physicians. Level selection is based on medical decision-making complexity or total time on the date of encounter under 2021 AMA guidelines.
| CPT Code | Patient Type | MDM Complexity | Typical Total Time | Common NP Practice Scenarios |
|---|---|---|---|---|
| 99202 | New patient | Straightforward | 15-29 min | Acute uncomplicated illness; minor new problem |
| 99203 | New patient | Low | 30-44 min | New patient with one or two self-limited conditions; prescription required |
| 99204 | New patient | Moderate | 45-59 min | New patient with chronic condition requiring management; new problem with workup |
| 99205 | New patient | High | 60-74 min | New patient with severe or complex presentation; multiple conditions |
| 99211 | Established patient | Minimal | 5-10 min | Nurse visit; BP check; result notification (may not require NP presence) |
| 99212 | Established patient | Straightforward | 10-19 min | Stable chronic condition; routine prescription refill |
| 99213 | Established patient | Low | 20-29 min | One stable chronic illness with minor adjustment; acute uncomplicated illness |
| 99214 | Established patient | Moderate | 30-39 min | One or more chronic illnesses with exacerbation; new problem with additional workup; prescription drug management |
| 99215 | Established patient | High | 40-54 min | Severe exacerbation; complex medication management; multiple chronic conditions |
2021 E/M guidance for NP practice:
- Managing two or more chronic conditions (e.g., hypertension + diabetes + hypothyroidism) typically supports 99214 moderate complexity MDM not 99213. Defaulting to 99213 for multi-condition established patients is the most common E/M undercoding pattern in NP practice.
- Total time on the date of encounter including pre-visit chart review, face-to-face time, ordering, care coordination, and documentation can be used as the basis for level selection. For NPs who spend significant time on documentation and care coordination, this often supports a higher level than face-to-face time alone.
- Prescription drug management with any risk of drug-drug interaction, drug-condition interaction, or monitoring requirement contributes to moderate MDM complexity supporting 99214 even for shorter visits when the medication management decision is complex.
- Independent interpretation of a test when the NP personally reviews and documents interpretation of an EKG, X-ray, or lab result (rather than just reviewing an outside interpretation) contributes to MDM data complexity.
Preventive Medicine Visits
NPs provide preventive care across all age groups. Preventive visit coding follows the same age-stratified framework as physician preventive billing.
| CPT Code | Patient Type | Age Range |
|---|---|---|
| 99381 | New patient preventive | Under 1 year |
| 99382 | New patient preventive | 1–4 years |
| 99383 | New patient preventive | 5–11 years |
| 99384 | New patient preventive | 12–17 years |
| 99385 | New patient preventive | 18–39 years |
| 99386 | New patient preventive | 40–64 years |
| 99387 | New patient preventive | 65+ years |
| 99391 | Established patient preventive | Under 1 year |
| 99392 | Established patient preventive | 1–4 years |
| 99393 | Established patient preventive | 5–11 years |
| 99394 | Established patient preventive | 12–17 years |
| 99395 | Established patient preventive | 18–39 years |
| 99396 | Established patient preventive | 40–64 years |
| 99397 | Established patient preventive | 65+ years |
Preventive + problem visit same day Modifier 25 rule: When an NP performs a preventive visit and also addresses a new or established problem requiring additional work on the same date, both services are separately billable. Modifier 25 must be appended to the problem-focused E/M code. Without it, the E/M is bundled into the preventive visit payment and reimbursed at zero.
This is one of the highest-frequency modifier errors in NP billing missed on a significant percentage of combination visits in practices without a structured modifier audit process.
Medicare Annual Wellness Visit and Preventive Codes
NPs are authorized to perform and bill Medicare Annual Wellness Visits under their own NPI. These visits use Medicare-specific codes distinct from commercial preventive visit codes.
| Code | Description | Notes |
|---|---|---|
| G0402 | Initial Preventive Physical Examination (IPPE) Welcome to Medicare visit | One-time; within first 12 months of Medicare Part B enrollment |
| G0438 | Annual Wellness Visit initial | First AWV; health risk assessment and prevention plan |
| G0439 | Annual Wellness Visit subsequent | Each subsequent year |
| G0444 | Annual depression screening | Separately billable with AWV; 15 minutes |
| G0446 | Annual alcohol misuse screening and brief counseling | Separately billable; 15 minutes |
| G0447 | Behavioral counseling for obesity | 15 minutes; BMI ≥30 required |
AWV billing rule for NPs: NPs can bill G0438/G0439 under their own NPI for Medicare patients. Do not bill 99213/99214 as a substitute for an AWV this is a coding error. When a separately identifiable problem is addressed during the AWV, an E/M code with Modifier 25 is separately billable.
Chronic Care Management (CCM)
NPs managing Medicare patients with two or more chronic conditions can bill CCM codes and are frequently not doing so. This is one of the most consistently underbilled revenue streams in NP-led primary care practices.
| CPT Code | Description | Time | Key Requirement |
|---|---|---|---|
| 99490 | CCM clinical staff time, first 20 minutes/month | 20 min | Written patient consent; documented care plan; 24/7 access |
| 99439 | CCM clinical staff time, each additional 20 min | +20 min | Add-on to 99490 |
| 99491 | CCM NP/physician personal time, first 30 min/month | 30 min | When NP directly performs CCM (not delegated to clinical staff) |
| 99437 | CCM NP/physician personal time, each additional 30 min | +30 min | Add-on to 99491 |
| 99487 | Complex CCM first 60 minutes/month | 60 min | Moderate or high complexity MDM; multiple complex conditions |
| 99489 | Complex CCM each additional 30 minutes | +30 min | Add-on to 99487 |
NP-specific CCM note: NPs can bill CCM under their own NPI. The billing NPI on CCM claims must match the provider actually managing the patient’s care plan. Only one provider can bill CCM for a given patient in a given month.
Transitional Care Management (TCM)
TCM covers post-discharge care management a service NPs frequently provide but rarely bill.
| CPT Code | Complexity | Contact Requirement | Visit Requirement |
|---|---|---|---|
| 99495 | Moderate MDM | Interactive contact within 2 business days of discharge | Face-to-face within 14 days |
| 99496 | High MDM | Interactive contact within 2 business days of discharge | Face-to-face within 7 days |
NPs can bill TCM under their own NPI. The face-to-face TCM visit is included in the TCM code — do not bill a separate E/M for the visit. Document discharge date, contact date, visit date, and MDM complexity.
Telehealth Billing for Nurse Practitioners
Many NPs operate primarily or partially via telehealth. Correct telehealth billing requires the right place of service code and modifier combination — by payer.
| Code/Modifier | Description | Notes |
|---|---|---|
| POS 02 | Telehealth other than patient’s home | NP in office; patient at a telehealth originating site |
| POS 10 | Telehealth patient’s home | NP in office; patient at home (most NP telehealth) |
| Modifier 95 | Synchronous telemedicine audio/video | Required by most commercial payers |
| Modifier GT | Via interactive audio/video | Required by some Medicaid plans |
| Modifier 93 | Audio-only synchronous telehealth | For audio-only visits; lower reimbursement; coverage varies |
| Modifier FQ | Audio-only telehealth Medicare | Medicare-specific for audio-only compliance |
| 99421 | Online digital E/M 5-10 min cumulative | Asynchronous patient portal communication requiring clinical review |
| 99422 | Online digital E/M 11-20 min | |
| 99423 | Online digital E/M 21+ min | |
| G2012 | Brief virtual check-in 5-10 min | Telephone or video; patient-initiated; not related to recent visit |
| G2010 | Remote evaluation of pre-recorded images or video | Patient-submitted photos/video reviewed by NP |
Medicare telehealth reimbursement for NPs: NPs billing telehealth under their own NPI receive 85% of the physician fee schedule the same as in-person services. When qualifying incident-to conditions are met and the supervising physician is “virtually present” (actively monitoring the visit via audio/video), some MACs allow incident-to billing for telehealth, though this is payer-specific and must be verified.
Remote Patient Monitoring (RPM)
NPs managing chronic conditions via remote monitoring can bill RPM codes monthly another consistently underbilled category in NP-led primary care and specialty practices.
| CPT Code | Description | Notes |
|---|---|---|
| 99453 | RPM initial device setup and patient education | Billed once per device; covers onboarding |
| 99454 | RPM device supply with daily recordings, 30-day period | Requires 16+ days of data in 30-day period |
| 99457 | RPM treatment management, first 20 min/month | Requires interactive communication with patient |
| 99458 | RPM treatment management, each additional 20 min | Add-on |
| 99091 | Physiologic data collection and interpretation 30 min | Physician/NP personal time reviewing RPM data |
NP RPM billing: NPs can bill RPM under their own NPI. Patient consent must be documented before enrollment. 99457 requires an interactive communication touchpoint data review alone does not satisfy the requirement.
In-Office Procedures Commonly Performed by NPs
NPs across specialties perform a wide range of in-office procedures that are frequently underbilled or missed entirely.
| CPT Code | Description | Documentation Required |
|---|---|---|
| 93000 | ECG with interpretation and report | NP’s written interpretation must be in the chart |
| 94010 | Spirometry | Pre/post-bronchodilator measurements if COPD assessment |
| 69210 | Cerumen removal one or both ears | Document each ear separately; method used |
| 10060 | Incision and drainage simple | Location, size, technique, drainage description |
| 10061 | Incision and drainage complicated | |
| 11200 | Skin tag removal up to 15 | Number removed; method |
| 17000 | Destruction of premalignant lesion first | Location, size, method |
| 17003 | Destruction of premalignant lesion 2nd through 14th | Add-on |
| 17110 | Destruction of benign lesions up to 14 | |
| 20610 | Joint aspiration/injection major joint | Substance injected; laterality; technique |
| 36415 | Routine venipuncture | |
| 81001 | Urinalysis with microscopy | |
| 85025 | CBC with differential | |
| 87880 | Strep A rapid test | |
| 87804 | Influenza rapid test | |
| 90471 | Immunization administration first injection | |
| 90472 | Immunization administration each additional | |
| 90460 | Immunization administration with counseling under 18, first | |
| 90461 | Immunization administration with counseling under 18, each additional | |
| 99406 | Tobacco use cessation 3-10 min | Document cessation counseling content |
| 99407 | Tobacco use cessation greater than 10 min | |
| 99408 | Alcohol/substance abuse SBIRT 15-30 min | Document screening tool, score, and intervention |
| 99409 | Alcohol/substance abuse SBIRT greater than 30 min |
Specialty-Specific NP Billing
Nurse practitioners increasingly practice in specialty settings. Each specialty brings its own CPT code requirements on top of the core NP billing framework.
Family NP / Primary Care NP: Full E/M suite, preventive care, CCM, TCM, RPM, AWV, in-office procedures, behavioral health screening codes, tobacco cessation, SBIRT
Psychiatric-Mental Health NP (PMHNP): Psychiatric diagnostic evaluations (90791/90792), E/M for medication management (99212–99215), psychotherapy add-on codes (90833/90836/90838) when therapy is also provided, MAT billing (G2067 series for Medicare OTP), CCM for psychiatric patients
Acute Care NP / Hospital-Based NP:
| CPT Code | Description | Notes |
|---|---|---|
| 99221–99223 | Initial hospital care | Level based on MDM or time; NPs bill under own NPI |
| 99231–99233 | Subsequent hospital care | Daily rounding; level reflects MDM complexity |
| 99238–99239 | Hospital discharge services | 99238 ≤30 min; 99239 >30 min |
| 99251–99255 | Inpatient consultation (commercial payers) | Medicare eliminated consult codes use hospital care codes |
| 99291 | Critical care first 30–74 min | Requires continuous NP presence; document time |
| 99292 | Critical care each additional 30 min | Add-on |
Dermatology NP / Aesthetics NP:
| CPT Code | Description |
|---|---|
| 11300–11313 | Shaving of epidermal/dermal lesions |
| 11400–11446 | Excision of benign lesions by location and size |
| 11600–11646 | Excision of malignant lesions by location and size |
| 17000–17004 | Destruction of premalignant lesions |
| 17110–17111 | Destruction of benign lesions |
| 96920–96922 | Laser treatment for inflammatory skin disease |
Women’s Health NP / OB-GYN NP:
| CPT Code | Description |
|---|---|
| 99213–99215 | Office visits for gynecologic concerns |
| 99385/99395 | Preventive visits women 18-39 (new/established) |
| 99386/99396 | Preventive visits women 40-64 |
| 57170 | Diaphragm or cervical cap fitting |
| 58300 | Insertion of IUD |
| 58301 | Removal of IUD |
| 59400 | Routine obstetric care antepartum, vaginal delivery, postpartum |
| G0101 | Cervical/vaginal cancer screening pelvic and breast exam |
| Q0091 | Obtaining cervical/vaginal smear (Pap) |
Modifier Reference for Nurse Practitioner Billing
| Modifier | Description | When to Use | Key Pitfall |
|---|---|---|---|
| 25 | Significant, separately identifiable E/M same day as preventive or minor procedure | When NP addresses both a preventive visit and a problem, or performs a procedure and an E/M, same day | Missing Modifier 25 = E/M bundled into preventive or procedure; paid at zero |
| SA | NP rendering service in collaboration with physician | Required by some payers to identify NP-physician collaborative relationship | Varies by payer verify requirement before applying |
| 95 | Synchronous telemedicine audio/video | NP telehealth visits billed to commercial payers | Missing = denial or incorrect processing |
| GT | Interactive audio/video telecommunications | Some Medicaid plans; verify by state | |
| 93 | Audio-only synchronous telehealth | When video unavailable; coverage varies by payer | |
| FQ | Audio-only telehealth Medicare | Medicare audio-only compliance | |
| GC | Service performed in part by resident under supervision | Academic medical center NP billing when resident involved | |
| GE | Service performed by resident without presence of supervising physician primary care exception | Teaching setting primary care exception | |
| 57 | E/M decision for major surgery | When E/M on day before surgery serves as surgical decision visit | Without 57, E/M may be bundled into global surgical package |
| 24 | Unrelated E/M during global surgical period | When E/M is for a condition unrelated to prior surgery within global period | |
| 33 | Preventive service ACA first-dollar coverage | When billing ACA-covered preventive services that should have no patient cost-sharing |
ICD-10 Codes Commonly Used in NP Billing
NPs in primary care manage the broadest ICD-10 code range of any provider type. The following represents the most frequently billed categories across NP specialties.
Chronic Disease Management (Primary Care NP)
| ICD-10 | Description | Coding Note |
|---|---|---|
| I10 | Essential hypertension | Most common NP diagnosis code |
| E11.9 | Type 2 diabetes without complications | Specify complications when documented |
| E11.65 | Type 2 diabetes with hyperglycemia | More specific than E11.9 when documented |
| E78.5 | Hyperlipidemia, unspecified | E78.00 for pure hypercholesterolemia |
| E66.01 | Morbid obesity | Add Z68.x BMI code as secondary |
| J44.1 | COPD with acute exacerbation | |
| N18.3 | Chronic kidney disease, stage 3 | Code CKD stage always |
| M81.0 | Age-related osteoporosis without fracture | |
| F32.1 | Major depressive disorder, moderate | Frequently co-managed by primary care NPs |
| F41.1 | Generalized anxiety disorder | |
| F17.210 | Nicotine dependence, cigarettes | Required for tobacco cessation billing |
Acute and Episodic (Primary Care NP)
| ICD-10 | Description |
|---|---|
| J06.9 | Acute upper respiratory infection |
| J02.0 | Streptococcal pharyngitis |
| N39.0 | Urinary tract infection |
| J20.9 | Acute bronchitis |
| L03.90 | Cellulitis, unspecified |
| R51.9 | Headache, unspecified |
| R05.9 | Cough, unspecified |
Women’s Health (OB-GYN / Women’s Health NP)
| ICD-10 | Description |
|---|---|
| Z01.419 | Encounter for gynecological examination |
| N92.0 | Excessive and frequent menstruation |
| N91.2 | Amenorrhea, unspecified |
| N94.3 | Premenstrual tension syndrome |
| Z30.09 | Encounter for other general contraceptive management |
| Z34.00 | Encounter for supervision of normal first pregnancy |
| N76.0 | Acute vaginitis |
Psychiatric-Mental Health NP (PMHNP)
| ICD-10 | Description |
|---|---|
| F32.1 | Major depressive disorder, single episode, moderate |
| F33.1 | Major depressive disorder, recurrent, moderate |
| F41.1 | Generalized anxiety disorder |
| F31.9 | Bipolar disorder, unspecified |
| F20.9 | Schizophrenia, unspecified |
| F11.20 | Opioid use disorder, moderate |
| F90.2 | ADHD, combined type |
Preventive and Screening
| ICD-10 | Description |
|---|---|
| Z00.00 | General adult medical exam without abnormal findings |
| Z00.01 | General adult medical exam with abnormal findings |
| Z12.11 | Screening for colorectal malignancy |
| Z23 | Encounter for immunization |
| Z68.x | Body mass index (secondary code) |
State Practice Authority and Billing Implications Quick Reference
Understanding your state’s NP practice model is essential for correct billing, supervision documentation, and incident-to eligibility.
| Practice Model | States (Examples) | Billing Implication |
|---|---|---|
| Full Practice Authority (FPA) | AZ, CO, ID, MT, NM, OR, WA, DC, and ~25 others | NP can bill independently under own NPI; no supervision requirement; incident-to available if NP chooses to work in a collaborative physician practice |
| Reduced Practice Authority | FL, IL, KS, MI, and others | NP requires collaborative agreement for some functions; agreement must be in place and documented for certain claims |
| Restricted Practice Authority | CA, TX, GA, AL, and others | NP must practice under physician supervision for all services; supervision documentation requirements are strictest; incident-to most commonly applicable |
Note on FPA and incident-to: Even in FPA states, if an NP works within a physician-owned practice and chooses to operate under the incident-to model for qualifying visits, Medicare incident-to rules still apply — the eligibility conditions must still be met. FPA affects state-level scope requirements, not Medicare’s federal billing rules.
This table is a general reference. State NP practice authority laws change periodically and vary in specifics. Always verify current requirements in your state before making billing decisions based on scope of practice.
Common Reasons NP Claims Get Denied And How We Fix Each One
1. Incident-to billed incorrectly compliance exposure The physician’s NPI appears on claims for new patient visits or new problem visits where the physician never established a plan of care. This is a billing compliance violation that creates recoupment risk.
Our fix: We apply a systematic incident-to eligibility screen to every NP claim before submission. New patients and new problems are flagged and billed under the NP’s NPI. Only qualifying follow-up visits for established plans of care proceed under the physician’s NPI.
2. Incident-to never applied 15% left on every qualifying visit The practice bills all NP services under the NP’s own NPI regardless of visit type, accepting 85% reimbursement on visits that could qualify for 100%.
Our fix: We identify the qualifying visit criteria in your practice workflow, confirm the physician’s presence documentation, and apply incident-to billing consistently for every visit that meets the requirements. The revenue recovery is immediate and ongoing.
3. E/M levels defaulting to 99213 for complex multi-condition visits NPs managing patients with multiple chronic conditions routinely qualify for 99214 or 99215 under 2021 MDM guidelines but default to 99213 out of habit or caution.
Our fix: We review E/M documentation against current AMA coding criteria and apply the code level the visit supports. Monthly E/M distribution analysis is included in your reporting so undercoding patterns are visible and correctable.
4. Modifier 25 missing on same-day preventive + problem visits The E/M for a same-day problem is bundled into the preventive visit reimbursement when Modifier 25 is absent the E/M is paid at zero.
Our fix: Same-day visit combinations are audited on every claim before submission. Modifier 25 is applied consistently whenever a separately identifiable E/M is documented on the same date as a preventive visit or minor procedure.
5. NP not credentialed with specific payers Claims submitted for services rendered before credentialing is complete, or after credential lapse, are denied or paid to the wrong provider.
Our fix: We coordinate with your credentialing process to track active enrollment status by payer for every NP in the practice. Claims are held for providers whose enrollment is pending and submitted as soon as credentialing is confirmed.
6. Telehealth modifiers incorrect or missing POS codes and modifiers applied incorrectly by payer result in telehealth claim denials or incorrect processing.
Our fix: We maintain a current payer-specific telehealth reference for NP claims and apply the correct POS code and modifier combination for each payer. Rule changes are tracked and applied proactively.
7. CCM and TCM never billed despite qualifying patient panel NPs managing Medicare patients with multiple chronic conditions and coordinating post-discharge care are performing CCM and TCM work every month — and most are not billing for it.
Our fix: We identify your qualifying CCM patient panel, build a monthly billing cadence for CCM, and implement a discharge tracking workflow that triggers TCM billing. Both are immediate revenue recovery opportunities that require no changes to clinical workflow.
8. PMHNP psychotherapy add-on code missing When a psychiatric NP provides both medication management and psychotherapy in the same visit, the psychotherapy add-on code (90833/90836/90838) is frequently never billed. The practice collects only the E/M rate.
Our fix: We identify PMHNP claims where combined E/M and therapy documentation is present and apply the correct add-on code consistently. This is typically one of the highest per-claim corrections in PMHNP billing.
Our Nurse Practitioner Billing Services Full Scope
Malakos Healthcare Solutions provides end-to-end revenue cycle management for independent NP practices, NP-led clinics, and NPs practicing within physician group practices and multi-provider organizations across the United States.
Incident-To Eligibility Management We apply a systematic incident-to eligibility screen to every NP claim — capturing 100% reimbursement on qualifying visits and ensuring compliance on all others. This single function is often the highest-impact service we provide to NP practices in its first month.
Eligibility & Benefit Verification We verify active coverage, deductibles, co-pays, authorization requirements, and NP-specific benefit limitations before every appointment. Credentialing status by payer is cross-referenced before any claim is submitted.
Credentialing Coordination We work alongside your credentialing process to track active NP enrollment by payer, flag pending credentialing holds, and ensure no claims are submitted for providers whose enrollment is not confirmed. For NPs joining a practice, we align billing start dates with credentialing completion.
Specialty-Specific NP Coding Our coders understand NP billing across all practice settings primary care, acute care, PMHNP, women’s health, dermatology, and specialty NP practice. We apply 2021 E/M guidelines correctly, handle preventive + problem same-day combinations, code CCM and TCM, and apply telehealth codes and modifiers by payer.
Prior Authorization Management We manage authorization requirements across all services in your NP practice specialist referrals, imaging, procedures, and any visit-specific auth triggers. Authorization is tracked proactively with renewals initiated before current auths expire.
Claim Submission & Scrubbing Every charge is scrubbed through a multi-point review incident-to eligibility, E/M level accuracy, modifier completeness, same-day code conflicts, telehealth code accuracy before electronic submission.
Denial Management We categorize every denial by root cause, appeal claims with supporting documentation, and address root causes systematically. Incident-to-related denials, credentialing-based rejections, and E/M level challenges each have distinct resolution workflows.
Accounts Receivable Follow-Up Structured 15/30/60-day AR cycle with direct payer outreach on every outstanding claim. No claim ages past 60 days without documented escalation.
Payment Posting & Underpayment Recovery Every EOB and ERA is reconciled against contracted rates — including verification that incident-to claims paid at physician rates and NP-billed claims paid at 85% rates are both correct and consistent with the billing approach used.
Monthly Reporting & Analytics Detailed monthly reports covering collections by provider and NPI, incident-to vs. independent billing breakdown, E/M code distribution analysis, denial rates by CPT and payer, AR aging, and CCM/TCM billing performance. Full financial visibility across your NP practice.
Why Nurse Practitioners Choose Malakos Healthcare Solutions
Incident-to expertise. We apply the incident-to eligibility framework correctly on every qualifying claim capturing the 15% reimbursement difference without creating compliance exposure. Most billing companies either don’t attempt incident-to or apply it inconsistently. We apply it correctly, every time.
2021 E/M accuracy for NP practice. We apply current AMA E/M guidelines to NP documentation and provide E/M distribution analysis that makes undercoding visible. For most NP practices, E/M level correction and incident-to capture together represent the largest immediate revenue improvement.
PMHNP and specialty NP depth. We understand the specific billing requirements for psychiatric NPs (psychotherapy add-on codes, MAT billing), acute care NPs (critical care, hospital care, discharge codes), women’s health NPs, and dermatology NPs not just primary care E/M.
Credentialing awareness. Credentialing and billing are inseparable in NP practice. We track active enrollment status by payer for every NP in your practice and prevent claims from going out for providers whose credentialing is not confirmed.
HIPAA-compliant operations. All data handling follows strict HIPAA protocols. A Business Associate Agreement (BAA) is included with every engagement.
EHR compatibility. We work within your existing platform eClinicalWorks, Athenahealth, Kareo, AdvancedMD, Practice Fusion, Jane, and most major NP-used EHR and PM systems.
Dedicated account manager. One point of contact who knows your practice, your provider roster, your payer mix, and your billing history. No support queues.
No long-term contracts. We earn your business through results month to month from day one.
Frequently Asked Questions – Nurse Practitioner Billing
What is the 85% rule for NP billing under Medicare? Medicare reimburses nurse practitioners at 85% of the physician fee schedule when services are billed under the NP’s own NPI. This applies to all services where the NP is the rendering provider. The only way to receive 100% reimbursement for NP-rendered services under Medicare is through incident-to billing billing under the supervising physician’s NPI when specific eligibility conditions are met.
What is incident-to billing and when does it apply? Incident-to billing allows services rendered by an NP to be billed under the supervising physician’s NPI at 100% of the physician fee schedule. The conditions are: the service must be in the office setting, the physician must have previously seen the patient and established the plan of care for the condition being treated, the service must be within that established plan (not a new problem), the physician must be physically present in the office suite at the time of service, and the NP must be employed by or contracted with the practice. When any of these conditions is not met, the service must be billed under the NP’s own NPI at 85%.
Can NPs bill independently in all 50 states? NPs can bill under their own NPI in all 50 states. However, what services they can provide independently and what supervision or collaboration is required varies by state. States with full practice authority allow NPs to evaluate, diagnose, treat, and prescribe without physician oversight. States with reduced or restricted practice authority require collaborative agreements or physician supervision for some or all services. The applicable state model affects documentation requirements, not whether the NP can bill.
Does incident-to billing apply to telehealth visits? Medicare’s incident-to rules were written around in-office services, and their application to telehealth is more nuanced. Some Medicare Administrative Contractors (MACs) have permitted incident-to billing for telehealth when the supervising physician is virtually present (actively monitoring via audio/video), but this is not uniformly applied. We verify MAC-specific guidance for your practice location before applying incident-to to telehealth claims.
Can a PMHNP bill psychotherapy codes? Yes. Psychiatric-mental health NPs can bill psychiatric diagnostic evaluations (90791/90792 where scope permits), psychiatric E/M codes (99212–99215), and psychotherapy codes including the psychotherapy add-on codes (90833/90836/90838) when medication management and psychotherapy are both provided in the same visit. The add-on code combination is one of the most consistently underbilled revenue opportunities in PMHNP practice.
How quickly can we get started? Most NP practices are fully onboarded within 7–14 business days. We begin with a free billing audit that identifies incident-to opportunities, E/M undercoding patterns, missed CCM/TCM, and other revenue gaps followed by a kickoff call to review your practice structure, payer mix, and EHR platform. Transition runs in parallel with your existing process with no disruption to billing or cash flow.
Ready to Capture the Full Revenue Your NP Practice Earns?
If your practice is leaving 15% on qualifying Medicare visits, undercoding complex E/M visits, missing CCM and TCM revenue, or dealing with credentialing-related denials we can fix all of it.
A free billing audit will show you exactly where your practice is losing revenue and what the recovery opportunity looks like.
Schedule Your Free Billing Audit
📞 +1 (307) 441-3431 ✉️ support@malakoshcs.com
Malakos Healthcare Solutions | Nurse Practitioner Billing Services USA | Serving independent NP practices, NP-led clinics, and multi-provider NP groups nationwide