Meet the Fellows
First Year Fellows

Maaz Ahsan, M.D.
Medical School: University of Pittsburgh
Residency Training: NYU Langone

Olgert Bardhi, M.D.
Medical School: University of Florida
Residency Training: UT Southwestern

Irtiqa Fazili, M.D.
Medical School: University of Tennessee
Residency Training: Emory University

Calvin Geng, M.D.
Medical School: UT Southwestern
Residency Training: University of Virginia

Mausam Patel, M.D.
Medical School: University of Miami
Residency Training: UT Southwestern

Jiho Sohn, M.D., Ph.D.
Medical School: University of Buffalo
Residency Training: UT Southwestern PSTP

Kohei Suzuki, M.D., Ph.D.
IBD Track
Medical School: Tokyo Medical University
Residency Training: UT Southwestern PSTP

George Waldenmaier, M.D.
Medical School: Tulane University
Residency Training: UT Southwestern

Roy Wang, M.D.
Medical School: Thomas Jefferson University
Residency Training: University of Pennsylvania

Hanghang Zhang, M.D., Ph.D.
Medical School: Temple University
Residency Training: UT Southwestern PSTP
Second Year Fellows

Edmond Fomunung, M.D.
Medical School: Johns Hopkins University
Residency Training: Tulane University

Rahul Grover, M.D.
Medical School: Weill Cornell Medicine
Residency Training: Albert Einstein College of Medicine

Osama Hamid, M.D.
Medical School: University of Khartoum
Residency Training: Case Western Reserve University

Manasa Narasimman, M.D.
Medical School: University of Miami
Residency Training: UT Southwestern

Mary Nattakom, M.D.
Medical School: Columbia University
Residency Training: UT Southwestern

Antonio Pizuomo Machado, M.D.
Medical School: Universidad del Zulia Facultad de Medicina
Residency Training: UT Health Science Center at Houston

Sarah Rotondo-Trivette, M.D.
IBD Track
Medical School: University of Southern California
Residency Training: Cedars-Sinai Medical Center

Thomas Smith, M.D.
Medical School: University of Missouri
Residency Training: Mayo Clinic College of Medicine and Science

Aya Tabbalat, M.D.
Medical School: Weill Cornell Medicine - Qatar
Residency Training: Case Western Reserve University - University Hospita

Heesoo Yoo, M.D.
Medical School: Catholic University of Korea
Residency Training: Cleveland Clinic
Third Year Fellows

Ashwini Arvind, M.D.
TARDIS Program
Medical School: Oxford University/Imperial College
Residency Training: UT Southwestern

Amin Fallah, M.D.
Medical School: Shiraz University
Residency Training: Baylor University, Dallas

Marcela Mendez, M.D.
Medical School: UT Southwestern
Residency Training: UT Southwestern

Ehiamen Okoruwa, M.D.
Transplant Hepatology
Chief Fellow
Medical School: Tulane University
Residency Training: UT Southwestern

Dylan Olson, M.D.
Medical School: University of Washington
Residency Training: Northwestern University

Emil Thyssen, M.D.
Chief Fellow
Medical School: University of Missouri, Columbia
Residency Training: UT Southwestern

Stephanie Tsai, M.D.
Transplant Hepatology
Medical School: Cornell University
Residency Training: Massachusetts General Hospital

Simeng Wang, M.D., Ph.D.
PSTP Program
Medical School: Fourth Military Medical University
Residency Training: UT Southwestern
Research Fellows

Ashwini Arvind, M.D.
TARDIS Program
Medical School: Oxford University/Imperial College
Residency Training: UT Southwestern

Simeng Wang, M.D., Ph.D.
PSTP Program
Medical School: Fourth Military Medical University
Residency Training: UT Southwestern
Advanced Fellows

Jake Wilson, M.D.
Advanced Endoscopy
Residency Training: University of Florida
GI Fellowship: Medical University of South Carolina

Sarah Rotondo-Trivette, M.D.
IBD Track
Medical School: University of Southern California
Residency Training: Cedars-Sinai Medical Center

Ehiamen Okoruwa, M.D.
Transplant Hepatology
Chief Fellow
Medical School: Tulane University
Residency Training: UT Southwestern

Stephanie Tsai, M.D.
Transplant Hepatology
Medical School: Cornell University
Residency Training: Massachusetts General Hospital
PSTP Residents

Tomás Rodríguez, M.D., Ph.D.
Medical School: University of Massachusetts

Michael Rohr, M.D., Ph.D.
Medical School: University of Central Florida