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Internal Medicine - Nephrology Specialists in San Antonio, TX

Browse 129 Internal Medicine - Nephrology providers listed in NPPES with a practice address in San Antonio, Texas.

129 Healthcare Providers

How San Antonio compares with the U.S.

San Antonio has 8.7 clinicians in Internal Medicine - Nephrology per 100,000 residents, 2.2 times the U.S. rate of 4.0.

That is 129 active clinicians in Internal Medicine - Nephrology with a practice address in San Antonio, for a population of 1,479,835.

The Texas rate is 3.8 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 San Antonio listed in the CMS Medicare file (96 of 99) accept Medicare assignment. That is similar to the Texas share of 97%.

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.

55% of clinicians in Internal Medicine - Nephrology in San Antonio listed in the CMS Medicare file (54 of 99) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the Texas share of 47%.

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 San Antonio, TX

Source: CMS PECOS
PECOS Enrolled Specialists 104 In San Antonio, TX
Part B Lab & Imaging Eligible 105 Diagnostic Referrals
DME Ordering Eligible 106 Durable Medical Equipment
Home Health Agency Referrals 105 HHA Ordering Eligible
Showing 1โ€“20 of 129 providers
With recent CMS data first, then Aโ€“Z

Dr. Muhammad Abdullah , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1123 N Main Ave Ste 120, San Antonio, TX 78212
Phone: 2102262001
NPI Identifier 1154614832
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Dr. Fadi Abouzahr , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
4458 Medical Dr Ste 205, San Antonio, TX 782293748
Phone: 2106141515
NPI Identifier 1982695896
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Dr. Mohammed S Ahmad , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
8042 Wurzbach Rd, Suite 500, San Antonio, TX 782293818
Phone: 2106927228
NPI Identifier 1104030865
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Dr. Reza Abbas Ali , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
12011 State Highway 151 Ste 202, San Antonio, TX 782511230
Phone: 2102658155
NPI Identifier 1669625448
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Dr. Wajid Ali , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
8435 Wurzbach Rd, San Antonio, TX 782293921
Phone: 2104509650
NPI Identifier 1942085923
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Ahmad Hashem Altarawneh

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
4458 Medical Dr Ste 505, San Antonio, TX 782293748
Phone: 2106907400
NPI Identifier 1487933446
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Dr. Tahira Palmer Alves , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
10010 Rogers Crossing, Suite 210, San Antonio, TX 782513818
Phone: 2105493524
NPI Identifier 1003913617
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Dr. Bassem Arab , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
400 Baltimore, San Antonio, TX 782151919
Phone: 2102280743
NPI Identifier 1780116061
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Dr. Julio Cesar Araujo , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3939 Medical Dr Ste 110, San Antonio, TX 782292292
Phone: 2108587604
NPI Identifier 1053365023
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Dr. Carolina Arias , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
137 Palo Alto Rd, San Antonio, TX 782113736
Phone: 2102128622
NPI Identifier 1972761849
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Dr. Nidal Jamal Badran , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
7712 Eckhert Rd, San Antonio, TX 782403008
Phone: 2105208060
NPI Identifier 1831662568
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Dr. Ghassan Salim Issa Bandak , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
701 S Zarzamora St, San Antonio, TX 782075209
Phone: 2103587578
NPI Identifier 1023397114
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Dr. Shweta Bansal , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
15102 Huebner Rd, San Antonio, TX 782311739
Phone: 2106442400
NPI Identifier 1215083894
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Dr. Suverta Bhayana , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
4502 Medical Dr, San Antonio, TX 782294402
Phone: 2103584000
NPI Identifier 1417151010
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Dr. Bruce Albert Brockway , MD

Internal Medicine - Nephrology

Active NPI Status
3939 Medical Dr, 110, San Antonio, TX 78229
Phone: 2106921515
NPI Identifier 1336221555
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Dr. Varshasb Broumand , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
215 N San Saba Ste 201, San Antonio, TX 782073120
Phone: 2105473430
NPI Identifier 1154329720
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Dr. Qasim Ali Butt , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
7703 Floyd Curl Dr # 7882, San Antonio, TX 782293901
Phone: 2105674700
NPI Identifier 1598966715
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Dr. Lisa Ochoa Cabrera , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
4439 E Southcross Blvd, Renal Associates Pa, San Antonio, TX 782227822
Phone: 2103597888
NPI Identifier 1811962723
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Dr. Timoteo Cabrera , MD

Internal Medicine - Nephrology

Active NPI Status
303 N Frio St, San Antonio, TX 782073034
Phone: 2104877827
NPI Identifier 1144295064
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Dr. Wesley B. Calhoun , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
4330 Medical Dr Ste 105, San Antonio, TX 782293342
Phone: 2106927662
NPI Identifier 1174508659
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Frequently Asked Questions about Internal Medicine - Nephrology in San Antonio

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 Texas 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.