2026 NPPES data Internal Medicine Physician NPI 1215991989 MD
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Ismaila Adiatu, MD

Internal Medicine Physician in Brooklyn, New York. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,858 in Internal Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
3K
Medicare Part D claims · 229 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
77%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Ismaila Adiatu, MD filed 2,787 Medicare Part D claims in 2023 as a Internal Medicine Physician in Brooklyn, New York, prescribing 77% generic.

3K
Part D claims, 2023
77%
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.

Ismaila Adiatu, MD's Medicare Part D volume vs every U.S. prescriber

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

2,787 Top 12% higher than 88% 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%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2K+: 213,991 prescribers (16%). This entry sits in this band. 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

Board-eligible specialty (heuristic, not verified)

Ismaila Adiatu, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Ismaila Adiatu, MD?

Quality data not reported

NPI registry status

Active

Issued 04/12/2006

NPI 1215991989

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

2,787 3% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in New York

How Internal Medicine Physician compares to other specialties among New York providers

New York providers

Largest specialties in New York (% of in-state providers)

Student in an Organized Health Care Education/Training Program - 7.8%Student in an Organized Health Care Education/Training Program7.8%Registered Nurse - 5.2%Registered Nurse5.2%Clinical Social Worker - 4.9%Clinical Social Worker4.9%Social Worker - 4.5%Social Worker4.5%Speech-Language Pathologist - 4.5%Speech-Language Pathologist4.5%Licensed Practical Nurse - 4.3%Licensed Practical Nurse4.3%Internal Medicine Physician - 2.6%Internal Medicine Physician2.6%
Largest specialties in New York (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Internal Medicine Physician. Verify directly:

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).

Ismaila Adiatu, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 451 CLARKSON AVE, Brooklyn, NY, 11203, with a listed phone of (718) 245-3408. NPI 1215991989 was issued on 04/12/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Adiatu 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 2,787 prescription claims written by this provider, covering 229 Medicare beneficiaries and totaling roughly $573K in drug spend, split 18% brand-name and 77% generic by claim count, with an opioid prescribing rate of 0.4%. 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

451 CLARKSON AVE
Brooklyn, NY 11203

Provider Details

NPI 1215991989
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 04/12/2006

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 Ismaila Adiatu, MD. To verify Ismaila Adiatu, MD'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

Ismaila Adiatu, MD - brand share 18.0%
Internal Medicine Physician average

18% brand-name claims vs 77% generic, on 2,787 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.

2,787
Total Claims
$573K
Total Drug Cost
229
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,584
Total Day Supply
195,379
Brand vs Generic
18% brand / 77% generic
Brand Drug Cost
$483K
Generic Drug Cost
$79K
Opioid Claims
12 (0.4% rate)

Patient Demographics

Average Patient Age
71.7 years
Avg HCC Risk Score
1.03
Gender Split
63% female / 37% male

Top Prescribed Drugs (Medicare Part D)

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

What Ismaila Adiatu, MD 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
Atorvastatin Calcium
299
Metformin Hcl
210
Amlodipine Besylate-Benazepril
Amlodipine Besylate/Benazepril
187
Amlodipine Besylate
156
Chlorthalidone
134
Labetalol Hcl
108
Ozempic
Semaglutide
80
Glipizide
63
Gabapentin
48
Montelukast Sodium
46

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

Internal Medicine Physician Overview

How Ismaila Adiatu, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Ismaila Adiatu, MD's 2,787 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in New York

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

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the New York medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Ismaila Adiatu, MD's specialty?
Ismaila Adiatu, MD specializes in Internal Medicine Physician and practices in Brooklyn, New York. Credentials: MD.
How much does Ismaila Adiatu, MD prescribe under Medicare Part D?
In 2023, Ismaila Adiatu, MD wrote 2,787 Medicare Part D claims totaling $573K in drug costs for 229 beneficiaries.
Where is Ismaila Adiatu, MD located?
Ismaila Adiatu, MD is located at 451 CLARKSON AVE, Brooklyn, NY, 11203. Phone: (718) 245-3408.
What is Ismaila Adiatu, MD's NPI number?
Ismaila Adiatu, MD's National Provider Identifier (NPI) is 1215991989, issued on 04/12/2006.
Does Ismaila Adiatu, MD prescribe more brand-name or generic drugs?
Ismaila Adiatu, MD's prescribing is 18% brand-name and 77% generic drugs by claim count, with $483K in brand drug costs.
Does Ismaila Adiatu, MD prescribe opioids?
Yes, Ismaila Adiatu, MD had 12 opioid claims in 2023 with an opioid prescribing rate of 0.4%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Ismaila Adiatu, MD prescribe most often?
Based on 2023 Medicare Part D data, Ismaila Adiatu, MD's most frequently prescribed drugs include Atorvastatin Calcium, Metformin Hcl, Amlodipine Besylate-Benazepril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ismaila Adiatu, MD accept Medicare?
Ismaila Adiatu, MD appears in CMS Medicare data with 2,787 Part D claims and 229 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ismaila Adiatu, MD's credentials?
Ismaila Adiatu, MD's NPI is 1215991989 with credentials MD. 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

Compiled from official public sources by the PlainDoctor editorial team.