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Nephrology in San Antonio, Texas

Data updated monthly · Last refresh September 2026

131 Nephrology providers practice in San Antonio, and 69% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Nephrology providers in San Antonio

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Jose Ramirez, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · (210) 226-2001
Dr. Jose Velez, MD
San Antonio, TX · $1,286 in drug and device payments (2025) · Telehealth · (210) 614-1515
Dr. Julio Araujo, M.D.
San Antonio, TX · $125 in drug and device payments (2025) · Telehealth · (210) 858-7604
Dr. Karina Vasquez, M.D.
San Antonio, TX · $1,920 in drug and device payments (2025) · Telehealth · (210) 549-3524
Dr. Karthik Kovvuru, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 450-9650
Dr. Kinza Shamsi, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 358-7300
Dr. Kumar Sharma, M.D
San Antonio, TX · $33 in drug and device payments (2025) · (210) 450-9800
Dr. Larry Davis, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · (210) 692-7228
Dr. Lauren Tarbox, M.D.
San Antonio, TX · $15,944 in drug and device payments (2025) · Telehealth · (210) 614-7900
Dr. Leopoldo Tecuanhuey, M.D.
San Antonio, TX · $234 in drug and device payments (2025) · Telehealth · (210) 438-0010
Dr. Lisa Cabrera, MD
San Antonio, TX · $2,590 in drug and device payments (2025) · Telehealth · (210) 359-7888
Dr. Luis Velez, M.D.
San Antonio, TX · $178,508 in drug and device payments (2025) · Telehealth · (210) 212-8622
Dr. Luz Moreno, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 226-2001
Dr. Mahmoud Numan, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 358-4000
Dr. Maria Luna, M.D.
San Antonio, TX · $1,272 in drug and device payments (2025) · (210) 692-7228
Dr. Matthew Schaefer, D.O.
San Antonio, TX · $969 in drug and device payments (2025) · (210) 495-8280
Dr. Matthias Kapturczak, MD
San Antonio, TX · $3,004 in drug and device payments (2025) · Telehealth · (210) 692-7228
Dr. Meghana Chalasani, MD
San Antonio, TX · $721 in drug and device payments (2025) · (210) 692-7228
Dr. Melissa Isbell, MD
San Antonio, TX · $1,863 in drug and device payments (2025) · Telehealth · (210) 614-1515
Dr. Michael Degaetano, DO
San Antonio, TX · $2,313 in drug and device payments (2025) · (210) 403-7978
Dr. Mohamed Shafiu, MD
San Antonio, TX · $1,751 in drug and device payments (2025) · Telehealth · (210) 403-7978
Dr. Mohammad Mizani, M.D.
San Antonio, TX · $3,529 in drug and device payments (2025) · Telehealth · (210) 212-8622
Dr. Mohammed Ahmad, MD
San Antonio, TX · $285 in drug and device payments (2025) · (210) 692-7228
Dr. Muhammad Abdullah, MD
San Antonio, TX · $974 in drug and device payments (2025) · Telehealth · (210) 226-2001
Dr. Murthy Gedala, MD
San Antonio, TX · $454 in drug and device payments (2025) · (210) 876-3658
Dr. Namrata Carpenter
San Antonio, TX · No drug or device payments recorded (2025) · (210) 358-5515
Dr. Nastaran Fathi, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 222-9997
Dr. Naushad Zafar, M.D.
San Antonio, TX · $862 in drug and device payments (2025) · Telehealth · (210) 614-7900
Dr. Neema Stephens, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 358-7578
Dr. Nestor Astorga, MD
San Antonio, TX · $115 in drug and device payments (2025) · (210) 567-1767
Dr. Nidal Badran, MD
San Antonio, TX · $150 in drug and device payments (2025) · Telehealth · (210) 520-8060
Dr. Oscar Iznaola -esquivel, M.D.
San Antonio, TX · $180 in drug and device payments (2025) · (361) 239-2851
Dr. Pablo Pergola, MD
San Antonio, TX · $6,792 in drug and device payments (2025) · (210) 226-2001
Dr. Paolo Fanti, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 257-1400
Dr. Paraic Mulgrew, MD
San Antonio, TX · $215 in drug and device payments (2025) · Telehealth · (210) 614-1515
Dr. Parmish Kohli, M.D.
San Antonio, TX · $1,534 in drug and device payments (2025) · (210) 614-1515
Dr. Pavan Devulapally, MD
San Antonio, TX · $839 in drug and device payments (2025) · Telehealth · (210) 614-7900
Dr. Peter Smolens, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · (210) 654-7326
Dr. Prakash Nancherla, MD
San Antonio, TX · $436 in drug and device payments (2025) · (210) 403-0765
Dr. Qasim Butt, M.D.
San Antonio, TX · $3,638 in drug and device payments (2025) · Telehealth · (210) 567-4700
Dr. Ragi Philips, MD
San Antonio, TX · $185 in drug and device payments (2025) · (210) 371-4123
Dr. Rahul Koushik, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · (210) 268-2477
Dr. Rahul Patel, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · Telehealth · (863) 370-3631
Dr. Rajeev Narayan, M.D.
San Antonio, TX · $10,841 in drug and device payments (2025) · Telehealth · (210) 403-0765
Dr. Rashid Sharaf, M.D
San Antonio, TX · $21,634 in drug and device payments (2025) · (210) 614-1515
Dr. Reza Ali, MD
San Antonio, TX · $1,594 in drug and device payments (2025) · Telehealth · (210) 265-8155
Dr. Ricardo Uribe, MD
San Antonio, TX · $160 in drug and device payments (2025) · Telehealth · (210) 358-3555
Dr. Robert Holub, M.D.
San Antonio, TX · $77 in drug and device payments (2025) · Telehealth · (210) 226-2001
Dr. Robert Kunau, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 257-1400
Dr. Robert Szewc, MD
San Antonio, TX · $1,639 in drug and device payments (2025) · Telehealth · (210) 277-1418

Conditions Nephrology providers in San Antonio, Texas commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Nephrology providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Nephrology providers are in San Antonio, Texas?

There are 131 Nephrology providers with active NPI records practicing in San Antonio, according to federal NPPES data refreshed monthly.

How many Nephrology providers in San Antonio received drug or device company payments?

91 of 131 (69%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Nephrology providers in San Antonio treat?

Nephrology providers in San Antonio commonly treat chronic kidney disease, kidney stones, dialysis care, high blood pressure and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

All specialties in San Antonio Nephrology across Texas

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.