NPI registry status
Active
2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1083659239
Verify on CMS → Zia Ahmed
Endocrinology, Diabetes & Metabolism 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 7,852 in Endocrinology, Diabetes & Metabolism 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 · 238 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
66%
generic claims · 25% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$197.24
9 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Zia Ahmed filed 3,208 Medicare Part D claims in 2023 as a Endocrinology, Diabetes & Metabolism Physician in Brooklyn, New York, prescribing 66% generic.
- 3K
- Part D claims, 2023
- 66%
- generic prescribing
- $197.24
- industry payments (Sunshine Act)
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.
Zia Ahmed's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,208 Top 11% higher than 89% of 1,370,886 prescribers
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)
Zia Ahmed 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 Zia Ahmed?
Quality data not reportedPrimary specialty
Endocrinology, Diabetes & Metabolism Physician
Medicare Part D claims
3,208 22% vs specialty avg
Specialty distribution in New York
How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among New York 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 Endocrinology, Diabetes & Metabolism Physician. Verify directly:
How MIPS and board certification work
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).
Zia Ahmed appears in the CMS NPPES registry as a Endocrinology, Diabetes & Metabolism Physician provider at 608 SCHENECTADY AVE, Brooklyn, NY, 11203, with a listed phone of (347) 985-1021. NPI 1083659239 was issued on 06/19/2006.
Medicare Part D records for calendar year 2023 show 3,208 prescription claims written by this provider, covering 238 Medicare beneficiaries and totaling roughly $913K in drug spend, split 25% brand-name and 66% generic by claim count.
Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,852 enrolled providers across 54 states and an average of 2,639 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
Provider Details
| NPI | 1083659239 |
|---|---|
| Specialty | Endocrinology, Diabetes & Metabolism Physician |
| Gender | Male |
| NPI Issued | 06/19/2006 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Zia Ahmed. Source: openpaymentsdata.cms.gov.
Total received
$197
Largest payer
Novo Nordisk Inc
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
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 Zia Ahmed. To verify Zia Ahmed'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 · Above average
Zia Ahmed - brand share 25.0%
Endocrinology, Diabetes & Metabolism Physician average
25% brand-name claims vs 66% generic, on 3,208 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.
3,208
Total Claims
$913K
Total Drug Cost
238
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,256
- Total Day Supply
- 214,318
- Brand vs Generic
- 25% brand / 66% generic
- Brand Drug Cost
- $848K
- Generic Drug Cost
- $53K
- Antibiotic Claims
- 25
Patient Demographics
- Average Patient Age
- 72.6 years
- Avg HCC Risk Score
- 1.31
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 20, 65-74: 129, 75-84: 71, 85+: 18
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Zia Ahmed prescribes most
Top Medicare Part D drugs by claim count, 2023
- Simvastatin
Simvastatin
196 claims
- Metformin Hcl
Metformin Hcl
168 claims
- Amlodipine Besylate
Amlodipine Besylate
137 claims
- Losartan Potassium
Losartan Potassium
124 claims
- Alendronate Sodium
Alendronate Sodium
111 claims
- Novolog Flexpen
Novolog Flexpen
108 claims
- Hydrochlorothiazide
Hydrochlorothiazide
96 claims
- Januvia
Januvia
94 claims
| Drug | Claims |
|---|---|
| Simvastatin | 196 |
| Metformin Hcl | 168 |
| Amlodipine Besylate | 137 |
| Losartan Potassium | 124 |
| Alendronate Sodium | 111 |
| Novolog Flexpen Insulin Aspart | 108 |
| Hydrochlorothiazide | 96 |
| Januvia Sitagliptin Phosphate | 94 |
| Atorvastatin Calcium | 90 |
| Levothyroxine Sodium | 79 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Endocrinology, Diabetes & Metabolism Physician in NY →
All providers in New York →
Compare specialties →
Endocrinology, Diabetes & Metabolism Physician Overview
How Zia Ahmed fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.
7,852
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider
Zia Ahmed's 3,208 claims are above the specialty average of 2,639.
Nearby Endocrinology, Diabetes & Metabolism Physician Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Ahmed.
Dr. Zinoviy Abelev
MD
Long Island City, NY
Dr. Jill Abelseth
M.D.
Albany, NY
Dr. Sherley Abraham
M.D.
New York, NY
Dr. Jennifer Abrams
DO
Brooklyn, NY
Dr. Naim Abrar
M.D.
Riverhead, NY
Compare Endocrinology, Diabetes & Metabolism 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 Endocrinology, Diabetes & Metabolism 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.
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Frequently Asked Questions
What is Zia Ahmed's specialty? ▼
Zia Ahmed specializes in Endocrinology, Diabetes & Metabolism Physician and practices in Brooklyn, New York.
How much does Zia Ahmed prescribe under Medicare Part D? ▼
In 2023, Zia Ahmed wrote 3,208 Medicare Part D claims totaling $913K in drug costs for 238 beneficiaries.
Where is Zia Ahmed located? ▼
Zia Ahmed is located at 608 SCHENECTADY AVE, Brooklyn, NY, 11203. Phone: (347) 985-1021.
What is Zia Ahmed's NPI number? ▼
Zia Ahmed's National Provider Identifier (NPI) is 1083659239, issued on 06/19/2006.
Does Zia Ahmed prescribe more brand-name or generic drugs? ▼
Zia Ahmed's prescribing is 25% brand-name and 66% generic drugs by claim count, with $848K in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US? ▼
There are 7,852 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does Zia Ahmed prescribe most often? ▼
Based on 2023 Medicare Part D data, Zia Ahmed's most frequently prescribed drugs include Simvastatin, Metformin Hcl, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Zia Ahmed accept Medicare? ▼
Zia Ahmed appears in CMS Medicare data with 3,208 Part D claims and 238 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Zia Ahmed's credentials? ▼
Zia Ahmed's NPI is 1083659239. 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
View source datasets and methodology notes
- 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.