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Internal Medicine - Nephrology Specialists in Columbus, OH

Browse 63 Internal Medicine - Nephrology providers listed in NPPES with a practice address in Columbus, Ohio.

63 Healthcare Providers

How Columbus compares with the U.S.

Columbus has 6.9 clinicians in Internal Medicine - Nephrology per 100,000 residents, about 1.7 times the U.S. rate of 4.0.

That is 63 active clinicians in Internal Medicine - Nephrology with a practice address in Columbus, for a population of 914,802.

The Ohio rate is 4.2 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 - Nephrology in Columbus listed in the CMS Medicare file (47 of 49) accept Medicare assignment. That is similar to the Ohio share of 99%.

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.

53% of clinicians in Internal Medicine - Nephrology in Columbus listed in the CMS Medicare file (26 of 49) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the Ohio share of 34%.

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 Columbus, OH

Source: CMS PECOS
PECOS Enrolled Specialists 51 In Columbus, OH
Part B Lab & Imaging Eligible 51 Diagnostic Referrals
DME Ordering Eligible 52 Durable Medical Equipment
Home Health Agency Referrals 51 HHA Ordering Eligible
Showing 1โ€“20 of 63 providers
With recent CMS data first, then Aโ€“Z

Dr. Anil K Agarwal , MD

Internal Medicine - Nephrology

Active NPI Status
456 W 10th Ave, Columbus, OH 432101240
Phone: 6142934997
NPI Identifier 1639115413
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Dr. Meshaal Alanzi , MD

Internal Medicine - Nephrology

Active NPI Status
300 W 10th Ave, Columbus, OH 432101280
Phone: 6142934837
NPI Identifier 1275212037
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Dr. Salem Almaani , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
3535 Olentangy River Rd, Medical Education, Columbus, OH 432143908
Phone: 3475492161
NPI Identifier 1376856492
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Dr. Ramesh Annadurai , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
929 Jasonway Ave, Columbus, OH 432142464
Phone: 6145382250
NPI Identifier 1396976379
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Dr. Naveed Ashfaq , MBBS

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
543 Taylor Ave Fl 3, Columbus, OH 432031278
Phone: 6142934837
NPI Identifier 1609263888
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Dr. Karim T. Attia , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
929 Jasonway Ave, Columbus, OH 432142330
Phone: 6145382250
NPI Identifier 1801139217
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Dr. Isabelle M. Ayoub , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
543 Taylor Ave, Columbus, OH 432031278
Phone: 6142934837
NPI Identifier 1669617221
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Muhammad Tariq Baig

Internal Medicine - Nephrology

Active NPI Status
2323 River Oaks Dr, Columbus, OH 432289165
Phone: 6148251582
NPI Identifier 1376187880
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Dr. Saleem H Bharmal , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
500 E Main St Ste 240, Columbus, OH 432155369
Phone: 6144606100
NPI Identifier 1336348721
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Dr. Khaled Boubes , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
1800 Zollinger Rd, Columbus, OH 432212849
Phone: 6142934837
NPI Identifier 1356573976
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Dr. Liza Krassimirova Cholin , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
300 W 10th Ave, Columbus, OH 432101280
Phone: 6142934837
NPI Identifier 1497117139
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Dr. Madeline S. Chung , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
543 Taylor Ave, Columbus, OH 432031278
Phone: 6142934837
NPI Identifier 1154827475
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Dr. Erika Critell , DO

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
929 Jasonway Ave, Columbus, OH 432142330
Phone: 6145382250
NPI Identifier 1679032544
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Dr. Saurabh Dasgupta , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
929 Jasonway Ave, Columbus, OH 432142330
Phone: 8623715679
NPI Identifier 1649581067
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Dr. Alejandro Diez , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
300 W 10th Ave, Columbus, OH 432101280
Phone: 6142934837
NPI Identifier 1669670782
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Dr. Jessica Marie Greco , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
543 Taylor Ave, Columbus, OH 432031278
Phone: 6142934837
NPI Identifier 1235496399
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Dr. Aijaz A. Gundroo , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
543 Taylor Ave, Columbus, OH 432031278
Phone: 6142934837
NPI Identifier 1881660900
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Dr. Tyler P Gutkoski , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
181 Taylor Ave, Columbus, OH 432031779
Phone: 6142934837
NPI Identifier 1336550862
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Dr. Nabil J. Haddad , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
543 Taylor Ave, Columbus, OH 432031278
Phone: 6142934837
NPI Identifier 1598772998
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Dr. Lee A Hebert , MD

Internal Medicine - Nephrology

Active NPI Status
456 W 10th Ave, Columbus, OH 432101240
Phone: 6142934997
NPI Identifier 1124035522
View Full Profile

Frequently Asked Questions about Internal Medicine - Nephrology in Columbus

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 Ohio 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.