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Internal Medicine - Nephrology Specialists in Buffalo, NY

Browse 23 Internal Medicine - Nephrology providers listed in NPPES with a practice address in Buffalo, New York.

23 Healthcare Providers

How Buffalo compares with the U.S.

Buffalo has 8.3 clinicians in Internal Medicine - Nephrology per 100,000 residents, 2.1 times the U.S. rate of 4.0.

That is 23 active clinicians in Internal Medicine - Nephrology with a practice address in Buffalo, for a population of 276,854.

The New York rate is 5.3 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.

100% of clinicians in Internal Medicine - Nephrology in Buffalo listed in the CMS Medicare file (18 of 18) accept Medicare assignment. That is similar to the New York share of 95%.

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.

39% of clinicians in Internal Medicine - Nephrology in Buffalo listed in the CMS Medicare file (7 of 18) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the New York share of 45%.

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 - Nephrology Medicare (PECOS) Enrollment & Ordering Eligibility

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

Source: CMS PECOS
PECOS Enrolled Specialists 19 In Buffalo, NY
Part B Lab & Imaging Eligible 19 Diagnostic Referrals
DME Ordering Eligible 19 Durable Medical Equipment
Home Health Agency Referrals 19 HHA Ordering Eligible
Showing 1โ€“20 of 23 providers
With recent CMS data first, then Aโ€“Z

Dr. Alonso Alvarado Orlandini , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
462 Grider St, Buffalo, NY 142153021
Phone: 7168984578
NPI Identifier 1720646946
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Dr. Sahar Amin , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
462 Grider St, Buffalo, NY 142153021
Phone: 7168983000
NPI Identifier 1548932437
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Dr. Shirley S. Chang , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
462 Grider St, Buffalo, NY 142153021
Phone: 7168983000
NPI Identifier 1720063753
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Dr. Andre Francis Charest , MD, MSC, FRCPC

Internal Medicine - Nephrology

Active NPI Status
462 Grider St Fl 11, Buffalo, NY 142153021
Phone: 7168984803
NPI Identifier 1124509278
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Dr. James Kevin Farry , MD

Internal Medicine - Nephrology

Active NPI Status
462 Grider St, Erie County Medical Center -- Division Of Nephrology, Buffalo, NY 142153021
Phone: 7168984803
NPI Identifier 1174652044
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Dr. Mohammed Hamid , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
462 Grider St Fl 11, Buffalo, NY 142153021
Phone: 7168984803
NPI Identifier 1053540492
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Dr. Mohammad Faraz Ul Haq , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
462 Grider St, Suite 1152, Buffalo, NY 14215
Phone: 7168984902
NPI Identifier 1649685199
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Dr. Samer Kareem , MBBS

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
462 Grider St, Buffalo, NY 142153098
Phone: 7168985001
NPI Identifier 1548799190
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Dr. Romesh K Kohli , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
85 High St, Buffalo, NY 142031149
Phone: 7168578613
NPI Identifier 1730146978
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Dr. Ernesto Leon Velarde Carreno , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
462 Grider St Ste 1152, Buffalo, NY 142153021
Phone: 7168984803
NPI Identifier 1619402609
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Dr. James W Lohr , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
Elm And Carlton St, Buffalo, NY 142630001
Phone: 7168452300
NPI Identifier 1518957612
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Dr. Inkee Min , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
85 High St, Buffalo, NY 142031149
Phone: 7168578614
NPI Identifier 1437117819
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Dr. Brian M Murray , MD, FACP

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
462 Grider St, Renal Division, Buffalo, NY 142153021
Phone: 7168984803
NPI Identifier 1497780076
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Dr. George Geoffrey Neiderman , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
462 Grider St Ste 1152, Buffalo, NY 142153021
Phone: 7168984803
NPI Identifier 1346328713
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Dr. Mandip Panesar , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
462 Grider St, Buffalo, NY 142153021
Phone: 7168984803
NPI Identifier 1164471959
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Dr. Richard J Quigg , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
462 Grider St, Buffalo, NY 142153021
Phone: 7168984803
NPI Identifier 1346303864
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Dr. Nagaraja R Sridhar , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
85 High St, Buffalo, NY 142031149
Phone: 7168578607
NPI Identifier 1245289016
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Dr. Jon R Vonvisger , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
462 Grider St, Buffalo, NY 142153021
Phone: 7168983000
NPI Identifier 1518974864
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Dr. Rabi Yacoub , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
Elm And Carlton St, Buffalo, NY 142630001
Phone: 7168452300
NPI Identifier 1497987093
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Dr. Mareena Susan Zachariah , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
462 Grider St, Buffalo, NY 142153021
Phone: 7168984803
NPI Identifier 1629087192
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Frequently Asked Questions about Internal Medicine - Nephrology in Buffalo

How do I check a Internal Medicine - Nephrology 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.