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Internal Medicine Providers in Buffalo, NY

Browse 293 Internal Medicine providers listed in NPPES with a practice address in Buffalo, New York.

293 Healthcare Providers

How Buffalo compares with the U.S.

Buffalo has 106 clinicians in Internal Medicine per 100,000 residents, 2.4 times the U.S. rate of 44.

That is 293 active clinicians in Internal Medicine with a practice address in Buffalo, for a population of 276,854.

The New York rate is 61 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

96% of clinicians in Internal Medicine in Buffalo listed in the CMS Medicare file (172 of 179) accept Medicare assignment. That is higher than the New York share of 91%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

12% of clinicians in Internal Medicine in Buffalo listed in the CMS Medicare file (21 of 179) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the New York share of 35%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Internal Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine practitioners in Buffalo, NY

Source: CMS PECOS
PECOS Enrolled Specialists 231 In Buffalo, NY
Part B Lab & Imaging Eligible 235 Diagnostic Referrals
DME Ordering Eligible 241 Durable Medical Equipment
Home Health Agency Referrals 235 HHA Ordering Eligible
Showing 1โ€“20 of 293 providers
With recent CMS data first, then Aโ€“Z

Dr. Hany Abdel Messeh , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
565 Abbott Rd, Mercy Hospitalist Group Office, Buffalo, NY 142202039
Phone: 7168621423
NPI Identifier 1689931644
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Dr. Amr Abd El-Radi , MD

Internal Medicine

Active NPI Status
100 High St, Buffalo, NY 142031126
Phone: 2033490581
NPI Identifier 1124681614
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Dr. Syed Maaz Abdullah , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2157 Main Street, Sisters Of Charity Hospital, Department Of Medicine, Buffalo, NY 14214
Phone: 7168621423
NPI Identifier 1730753179
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Dr. Jennifer Abeles , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
300 Linwood Ave, Buffalo, NY 142091802
Phone: 7169619400
NPI Identifier 1952304024
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Dr. Elias Abdallah Abou-Jaoude , MD

Internal Medicine

Active NPI Status
462 Grider St, Buffalo, NY 142153021
Phone: 7168984578
NPI Identifier 1457932519
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Dr. Kelsey Lee Adamson , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
462 Grider St, Buffalo, NY 142153021
Phone: 7168983941
NPI Identifier 1174056733
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Dr. Misbah Haque Ahmad , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
462 Grider St, Rm 786, Buffalo, NY 14215
Phone: 7169616995
NPI Identifier 1427210111
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Dr. Tahreem Ahmad , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
900 Hertel Ave, Buffalo, NY 142162611
Phone: 7168711571
NPI Identifier 1447819198
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Ashfaq Ahmed

Internal Medicine

Active NPI Status Accepts Medicare Assignment
462 Grider St, Buffalo, NY 142153021
Phone: 7168983000
NPI Identifier 1497316947
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Dr. Saif Al-Deen Alattal , MBBS

Internal Medicine

Active NPI Status
955 Main St, Buffalo, NY 142031121
Phone: 7169616955
NPI Identifier 1811629272
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Dr. Veludina San Juan Alejandro , MD

Internal Medicine

Active NPI Status
3495 Bailey Ave, Buffalo, NY 142151129
Phone: 7168628881
NPI Identifier 1083624399
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Dr. Raed M. Alnaji , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
565 Abbott Rd, Buffalo, NY 142202039
Phone: 7168267000
NPI Identifier 1992122378
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Dr. Mohammad Alsheikh-Kassim , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
565 Abbott Rd, Buffalo, NY 142202039
Phone: 7168267000
NPI Identifier 1164051132
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Dr. Jamal Ansari , MD

Internal Medicine

Active NPI Status
462 Grider St, Department Of Medicine, Buffalo, NY 14216
Phone: 7168983941
NPI Identifier 1477044477
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Dr. Mohammad Uzair Ansari , MD

Internal Medicine

Active NPI Status
462 Grider St, Buffalo, NY 142153021
Phone: 7168983941
NPI Identifier 1891229977
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Erika Anson

Internal Medicine

Active NPI Status Accepts Medicare Assignment
100 High St, Buffalo, NY 142031126
Phone: 7168595600
NPI Identifier 1346668332
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Dr. Nicholas James Aquino , MD

Internal Medicine

Active NPI Status
1001 Main St, Buffalo, NY 142031009
Phone: 7168597978
NPI Identifier 1710941521
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Dr. Michael Joseph Aronica , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
800 Hertel Ave Ste 100, Buffalo, NY 142071906
Phone: 7168472441
NPI Identifier 1831158195
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Dr. Vikram Arya , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3495 Bailey Ave, Buffalo, NY 142151129
Phone: 7168349200
NPI Identifier 1851730790
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Dr. Umeer Ashraf , MD

Internal Medicine

Active NPI Status
85 High St, Buffalo, NY 142031194
Phone: 7166301000
NPI Identifier 1336398213
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Frequently Asked Questions about Internal Medicine in Buffalo

How do I check a Internal Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the New York licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.