Current and Past Fellows
2025 Fellow Graduates (AY 2023-2025)
Madison Calder, MD (US Air Force)
Residency: University of California Davis Health, Sacramento, CA
*Track: Clinical Nephrology
Eric Garza, MD
Residency: HCA-Corpus Christi Medical Center, Corpus Christi, TX
*Track: Clinical Nephrology
Jason Gnasigamany, DO
Residency: Texas A&M Christus Good Shepherd Medical Center, Longview, TX
*Track: Clinical Nephrology
Victor Hoang, DO (US Air Force)
Residency: Keesler Air Force Base Medical Center, Biloxi, MS
*Track: Clinical Nephrology
Patrick Palacios, MD
Residency: UT Health San Antonio Long School of Medicine, San Antonio, TX
*Track: Clinical Nephrology
Javier Sevilla Rodriguez, MD
Residency: Centro Medico Episcopal San Lucas, Ponce, Puerto Rico
*Track: Clinical Nephrology
Current 2nd year Fellows (AY 2024-2026)
Hebah Alrahamneh, MD
Residency: Mountain View Regional Medical Center, Las Cruces, NM
*Track: Clinical Nephrology
Gerardo Astorga, MD
Residency: UT Rio Grande Valley Knapp Medical Center, Weslaco, TX
*Track: Clinical Nephrology
Namrata Carpenter, MD
Residency: Texas Institute of Graduate Medical Education and Research, San Antonio, TX
*Track: Clinical Nephrology
Fedoua Er Rbii, MD (Air Force)
Residency: Malcolm Grow Medical Center, Joint Base Andrews, MD
*Track: Clinical Nephrology
Emmanuel Garrastegui Mercado, MD
Residency: Las Palmas Del Sol Medical Center, El Paso, TX
*Track: Clinical Nephrology
Ammar Mahmood, MD
Residency: Las Palmas Del Sol Medical Center, El Paso, TX
*Track: Nephrology Critical Care
Julia Switzer, MD (Air Force)
Residency: San Antonio Uniformed Services Health Education Consortium, Fort Sam Houston, TX
*Track: Clinical Nephrology
Current 1st year Fellows (AY 2025-2027)
Imran Amer, MD
Residency: Guthrie/Robert Packer Hospital, Sayre, PA
*Track: Clinical Nephrology
Ahnaf Arefin, MD
Residency: UTHSCSA, San Antonio, TX
*Track: Clinical Nephrology
Stephanie Matheu, MD
Residency: Texas Institute of Graduate Medical Education and Research, San Antonio, TX
*Track: Clinical Nephrology
Fernando Palacios Cuervo, MD
Residency: Hospital Nacional Alberto Sabogal Sologuren, Lima, Peru
*Track: Clinical Nephrology
Ji-Min Park, MD (US Air Force)
Residency: San Antonio Uniformed Services Health Education Consortium, Fort Sam Houston, TX
*Track: Clinical Nephrology
William Parkinson, MD (US Air Force)
Residency: San Antonio Uniformed Services Health Education Consortium, Fort Sam Houston, TX
*Track: Nephrology Critical Care
Edwin Torres-Garcia, MD
Residency: San Juan City Hospital, San Juan, Puerto Rico
*Track: Clinical Nephrology