2026 NPPES data Adult Health Nurse Practitioner NPI 1336770718
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MAXWELL ANTWI

Adult Health Nurse Practitioner in WILLIAMSVILLE, New York. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
720
Medicare Part D claims · 112 beneficiaries · Adult Health Nurse Practitioner avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MAXWELL ANTWI filed 720 Medicare Part D claims in 2023 as a Adult Health Nurse Practitioner in WILLIAMSVILLE, New York, prescribing 88% generic.

720
Part D claims, 2023
88%
generic prescribing

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

MAXWELL ANTWI's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

720 Top 29% higher than 71% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about MAXWELL ANTWI?

Quality data not reported

NPI registry status

Active

Issued 02/04/2020

NPI 1336770718

Primary specialty

Adult Health Nurse Practitioner

Mid-sized

29,492 US NPIs in this specialty

Medicare Part D claims

720 40% vs specialty avg

2023 prescription claims

Specialty avg: 1,201

Specialty distribution in New York

How Adult Health Nurse Practitioner compares to other specialties among New York providers

New York providers

Adult Health Nurse Practitioner share within New York

1. Adult Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Adult Health Nurse Practitioner share within New York

Specialty board-certification context

Estimated specialty board-certified rate — Adult Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Adult Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Adult Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Adult Health Nurse Practitioner) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

MAXWELL ANTWI appears in the CMS NPPES registry as a Adult Health Nurse Practitioner provider at 40 GEORGE KARL BLVD, WILLIAMSVILLE, NY, 14221, with a listed phone of (716) 218-1000. NPI 1336770718 was issued on 02/04/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ANTWI most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 720 prescription claims written by this provider, covering 112 Medicare beneficiaries and totaling roughly $101K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 1.8%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Adult Health Nurse Practitioner is a mid-sized specialty nationwide, with 29,492 enrolled providers across 55 states and an average of 1,201 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

40 GEORGE KARL BLVD
WILLIAMSVILLE, NY 14221

Provider Details

NPI 1336770718
Specialty Adult Health Nurse Practitioner
Gender Male
NPI Issued 02/04/2020

Hospital and facility affiliations

Facilities where MAXWELL ANTWI bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

WNY MEDICAL PC
AMHERST, NY

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — New York NYSBPMC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~100K New York medical licensees in 2023 — they are NOT specific to MAXWELL ANTWI. To verify MAXWELL ANTWI's current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases

NYSBPMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

MAXWELL ANTWI — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 720 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

720
Total Claims
$101K
Total Drug Cost
112
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,418
Total Day Supply
42,080
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$86K
Generic Drug Cost
$15K
Opioid Claims
13 (1.8% rate)

Patient Demographics

Average Patient Age
66.3 years
Avg HCC Risk Score
1.52
Gender Split
57% female / 43% male
Age Distribution
<65: 43, 65-74: 43, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What MAXWELL ANTWI prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Metformin Hcl
49
Bupropion Xl
Bupropion Hcl
42
Metoprolol Succinate
37
Atorvastatin Calcium
36
Lisinopril
26
Gabapentin
25
Topiramate
23
Omeprazole
22
Amlodipine Besylate
21
Clonidine Hcl
20

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Adult Health Nurse Practitioner Overview

How MAXWELL ANTWI fits within the Adult Health Nurse Practitioner landscape nationally.

29,492
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,201
Avg Claims per Provider

MAXWELL ANTWI's 720 claims are below the specialty average of 1,201.

Nearby Adult Health Nurse Practitioner Providers in New York

Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as ANTWI.

Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is MAXWELL ANTWI's specialty?
MAXWELL ANTWI specializes in Adult Health Nurse Practitioner and practices in WILLIAMSVILLE, New York.
How much does MAXWELL ANTWI prescribe under Medicare Part D?
In 2023, MAXWELL ANTWI wrote 720 Medicare Part D claims totaling $101K in drug costs for 112 beneficiaries.
Where is MAXWELL ANTWI located?
MAXWELL ANTWI is located at 40 GEORGE KARL BLVD, WILLIAMSVILLE, NY, 14221. Phone: (716) 218-1000.
What is MAXWELL ANTWI's NPI number?
MAXWELL ANTWI's National Provider Identifier (NPI) is 1336770718, issued on 02/04/2020.
Does MAXWELL ANTWI prescribe more brand-name or generic drugs?
MAXWELL ANTWI's prescribing is 12% brand-name and 88% generic drugs by claim count, with $86K in brand drug costs.
Does MAXWELL ANTWI prescribe opioids?
Yes, MAXWELL ANTWI had 13 opioid claims in 2023 with an opioid prescribing rate of 1.8%.
How many Adult Health Nurse Practitioner providers are there in the US?
There are 29,492 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,201 Medicare Part D claims per year.
What drugs does MAXWELL ANTWI prescribe most often?
Based on 2023 Medicare Part D data, MAXWELL ANTWI's most frequently prescribed drugs include Metformin Hcl, Bupropion Xl, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MAXWELL ANTWI accept Medicare?
MAXWELL ANTWI appears in CMS Medicare data with 720 Part D claims and 112 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MAXWELL ANTWI's credentials?
MAXWELL ANTWI's NPI is 1336770718. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology