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Internal Medicine - Nephrology Specialists in Philadelphia, PA

Browse 175 Internal Medicine - Nephrology providers listed in NPPES with a practice address in Philadelphia, Pennsylvania.

175 Healthcare Providers

How Philadelphia compares with the U.S.

Philadelphia has 11 clinicians in Internal Medicine - Nephrology per 100,000 residents, 2.8 times the U.S. rate of 4.0.

That is 175 active clinicians in Internal Medicine - Nephrology with a practice address in Philadelphia, for a population of 1,579,706.

The Pennsylvania rate is 5.0 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.

97% of clinicians in Internal Medicine - Nephrology in Philadelphia listed in the CMS Medicare file (108 of 111) accept Medicare assignment. That is similar to the Pennsylvania 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.

54% of clinicians in Internal Medicine - Nephrology in Philadelphia listed in the CMS Medicare file (60 of 111) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the Pennsylvania share of 55%.

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 Philadelphia, PA

Source: CMS PECOS
PECOS Enrolled Specialists 134 In Philadelphia, PA
Part B Lab & Imaging Eligible 134 Diagnostic Referrals
DME Ordering Eligible 139 Durable Medical Equipment
Home Health Agency Referrals 134 HHA Ordering Eligible
Showing 1โ€“20 of 175 providers
With recent CMS data first, then Aโ€“Z

Azza Abubaker

Internal Medicine - Nephrology

Active NPI Status
111 S 11th St, Philadelphia, PA 191074824
Phone: 2159554294
NPI Identifier 1821732298
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Dr. Sandeep Aggarwal , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
219 N Broad St, 9th Fl, Philadelphia, PA 191071519
Phone: 2157622688
NPI Identifier 1548420326
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Dr. Ziauddin Ahmed , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
3401 N Broad St, Philadelphia, PA 191405189
Phone: 2157074600
NPI Identifier 1306888532
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Dr. Pooneh Alborzi , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
700 Spruce St Ste 403, Philadelphia, PA 191064027
Phone: 2158298420
NPI Identifier 1194985176
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Dr. Zainulabdeen Saad Abdulkadhim Al-Saedi , MD

Internal Medicine - Nephrology

Active NPI Status
1316 W Ontario St, Philadelphia, PA 191405220
Phone: 8008367536
NPI Identifier 1245927763
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Dr. Hasan Arif , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
230 N Broad St, Hahnemann University Hospital, Philadelphia, PA 191021121
Phone: 2157627000
NPI Identifier 1598927808
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Dr. Christine Bastl , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
3401 N Broad St, Philadelphia, PA 191405103
Phone: 2157074600
NPI Identifier 1679560452
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Dr. Joseph M Benjamin , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
3401 N Broad St, Philadelphia, PA 191405103
Phone: 2157074600
NPI Identifier 1265420368
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Dr. Jeffrey S Berns , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
51 N 39th St, 240 Mob Building, Philadelphia, PA 191042640
Phone: 2156628730
NPI Identifier 1386650299
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Dr. Behdad David Besharatian , MD

Internal Medicine - Nephrology

Active NPI Status
3400 Spruce St, 1 Founder, Philadelphia, PA 19104
Phone: 2156622638
NPI Identifier 1255620878
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Dr. Melissa B Bleicher , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3400 Spruce Street, 1 Founders, Philadelphia, PA 191044228
Phone: 2156622638
NPI Identifier 1508929282
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Dr. Eric J Bloom , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
5501 Old York Road, Moss 4th Floor, Sley Building, Einstein Nephrology Associates, Philadelphia, PA 19141
Phone: 2154566970
NPI Identifier 1902874670
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Dr. Roy D Bloom , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3400 Spruce St, 210 White Building, Philadelphia, PA 191044206
Phone: 2156622638
NPI Identifier 1528093663
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Dr. Suzanne M Boyle , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
3400 Civic Center Blvd, Philadelphia, PA 19104
Phone: 2156622638
NPI Identifier 1740422146
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Dr. Yasmin G Brahmbhatt , MD

Internal Medicine - Nephrology

Active NPI Status
833 Chestnut Street, Suite 700, Philadelphia, PA 191074414
Phone: 2155033000
NPI Identifier 1891967006
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Dr. Rachel Emily Brobst , DO

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
3401 N Broad St, Philadelphia, PA 191405103
Phone: 2157074600
NPI Identifier 1447888961
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Dr. Christina Hao Wang Brotman , MD, MSCE

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
3400 Spruce St, 1 Founders, Philadelphia, PA 191044238
Phone: 2156622638
NPI Identifier 1528486818
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Dr. Russell Carstens , MD

Internal Medicine - Nephrology

Active NPI Status
3400 Spruce St, 210 White Building, Philadelphia, PA 191044206
Phone: 2156622638
NPI Identifier 1790713303
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Dr. Constantine M Chaknos , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3400 Civic Center Blvd., 1st Floor, Suite 300s, Philadelphia, PA 191042617
Phone: 2156622638
NPI Identifier 1588870901
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Dr. Huiwen Chen , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
3400 Spruce St, Philadelphia, PA 191044238
Phone: 2156622638
NPI Identifier 1134539612
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Frequently Asked Questions about Internal Medicine - Nephrology in Philadelphia

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 Pennsylvania 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.