NPI registry status
Active
2026 NPPES data Diagnostic Radiology Physician NPI 1104191444 MD
Verify on CMS → Sameer Ahmed, MD
Diagnostic Radiology Physician in New Haven, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 39,551 in Diagnostic Radiology 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
68
Medicare Part D claims · 24 beneficiaries · Diagnostic Radiology Physician avg: 63
Generic prescribing
74%
generic claims · 26% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$30.4K
23 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
Sameer Ahmed, MD filed 68 Medicare Part D claims in 2023 as a Diagnostic Radiology Physician in New Haven, Connecticut, prescribing 74% generic.
- 68
- Part D claims, 2023
- 74%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Sameer Ahmed, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
68 0th percentile higher than 0% 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 certification likely (heuristic, not verified)
Sameer Ahmed, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Sameer Ahmed, MD?
Quality data not reportedPrimary specialty
Diagnostic Radiology Physician
Medicare Part D claims
68 8% vs specialty avg
Specialty distribution in Connecticut
How Diagnostic Radiology Physician compares to other specialties among Connecticut 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 Diagnostic Radiology 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).
Sameer Ahmed, MD appears in the CMS NPPES registry as a Diagnostic Radiology Physician provider holding MD credentials at 20 YORK ST, New Haven, CT, 06510, with a listed phone of (203) 688-5555. NPI 1104191444 was issued on 03/20/2012.
Medicare Part D records for calendar year 2023 show 68 prescription claims written by this provider, covering 24 Medicare beneficiaries and totaling roughly $22K in drug spend, split 26% brand-name and 74% generic by claim count, with an opioid prescribing rate of 32.4%.
Diagnostic Radiology Physician is a mid-sized specialty nationwide, with 39,551 enrolled providers across 56 states and an average of 63 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 | 1104191444 |
|---|---|
| Specialty | Diagnostic Radiology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 03/20/2012 |
Hospital and facility affiliations
Facilities where Sameer Ahmed, MD 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.
According to CMS billing records, Sameer Ahmed, MD is affiliated with 3 Medicare-billing facilities across 2 states.
Insight Chicago Inc
Chicago, IL
Jawad A Shah, MD PC
Warren, MI
Pain And Vascular Institute PLLC
Fox River Grove, IL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Sameer Ahmed, MD. Source: openpaymentsdata.cms.gov.
Total received
$30.4K
Largest payer
AngioDynamics, 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.
Brand vs generic prescribing mix · Above average
Sameer Ahmed, MD - brand share 26.0%
Diagnostic Radiology Physician average
26% brand-name claims vs 74% generic, on 68 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.
68
Total Claims
$22K
Total Drug Cost
24
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 122
- Total Day Supply
- 2,927
- Brand vs Generic
- 26% brand / 74% generic
- Brand Drug Cost
- $21K
- Generic Drug Cost
- $473
- Opioid Claims
- 22 (32.4% rate)
Patient Demographics
- Average Patient Age
- 71.9 years
- Avg HCC Risk Score
- 2.20
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sameer Ahmed, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Clopidogrel
Clopidogrel
16 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
12 claims
- Xarelto
Xarelto
11 claims
| Drug | Claims |
|---|---|
| Clopidogrel Clopidogrel Bisulfate | 16 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 12 |
| Xarelto Rivaroxaban | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Diagnostic Radiology Physician Overview
How Sameer Ahmed, MD fits within the Diagnostic Radiology Physician landscape nationally.
39,551
Diagnostic Radiology Physician Providers in US
56
States with Diagnostic Radiology Physician
63
Avg Claims per Provider
Sameer Ahmed, MD's 68 claims are above the specialty average of 63.
Nearby Diagnostic Radiology Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Ahmed.
Dr. Anthony Abou Karam
M.D.
New Haven, CT
Dr. Anjali Agrawal
M.D.
New Haven, CT
Dr. Paul Aiello
M.D.
Bridgeport, CT
Dr. Samantha Aldred
M.D.
New Canaan, CT
Dr. Kasim Ali
MD
New Haven, CT
Compare Diagnostic Radiology 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Diagnostic Radiology 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.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Sameer Ahmed, MD's specialty? ▼
Sameer Ahmed, MD specializes in Diagnostic Radiology Physician and practices in New Haven, Connecticut. Credentials: MD.
How much does Sameer Ahmed, MD prescribe under Medicare Part D? ▼
In 2023, Sameer Ahmed, MD wrote 68 Medicare Part D claims totaling $22K in drug costs for 24 beneficiaries.
Where is Sameer Ahmed, MD located? ▼
Sameer Ahmed, MD is located at 20 YORK ST, New Haven, CT, 06510. Phone: (203) 688-5555.
What is Sameer Ahmed, MD's NPI number? ▼
Sameer Ahmed, MD's National Provider Identifier (NPI) is 1104191444, issued on 03/20/2012.
Does Sameer Ahmed, MD prescribe more brand-name or generic drugs? ▼
Sameer Ahmed, MD's prescribing is 26% brand-name and 74% generic drugs by claim count, with $21K in brand drug costs.
Does Sameer Ahmed, MD prescribe opioids? ▼
Yes, Sameer Ahmed, MD had 22 opioid claims in 2023 with an opioid prescribing rate of 32.4%.
How many Diagnostic Radiology Physician providers are there in the US? ▼
There are 39,551 Diagnostic Radiology Physician providers across 56 states in the US. The average Diagnostic Radiology Physician provider writes 63 Medicare Part D claims per year.
What drugs does Sameer Ahmed, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Sameer Ahmed, MD's most frequently prescribed drugs include Clopidogrel, Hydrocodone-Acetaminophen, Xarelto. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sameer Ahmed, MD accept Medicare? ▼
Sameer Ahmed, MD appears in CMS Medicare data with 68 Part D claims and 24 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sameer Ahmed, MD's credentials? ▼
Sameer Ahmed, MD's NPI is 1104191444 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
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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.