Program Leadership
Our program leadership includes diverse backgrounds and specialties, ensuring a broad experience and teaching base for our residents.

John J Byrne, MD MPH
Assistant Professor, Residency Program Director
byrnej@uthscsa.edu | 210-567-5009
Dr. Byrne received his Bachelor of Science in Education from Baylor University in 2006. Prior to attending medical school, he received a M.P.H. from the University of Texas School of Public Health in 2009. He then completed medical school at the Joe R. & Teresa Lozano Long School of Medicine at University of Texas Health Science Center in San Antonio in 2013. He completed his residency in Obstetrics and Gynecology at the University of Chicago Medical Center in Chicago, IL, before coming back to Texas to complete a fellowship in Maternal-Fetal Medicine at the University of Texas Southwestern Medical Center/Parkland Hospital in 2020. Dr. Byrne joined the faculty at the University of Texas Health Science Center at San Antonio as an Assistant Professor in the Division of Maternal-Fetal Medicine. His current interests include multifetal gestation, maternal cardiac disease, and prenatal diagnosis.

Rochelle M. David, MD
Associate Professor/Clinical, Associate Program Director
davidr@uthscsa.edu | 210-567-5051
Rochelle David, MD received her Bachelor of Science Degree with honors in 1997 and her MD in 2000 from the University of Florida. She completed her residency training in Obstetrics and Gynecology in 2004 at the University of Texas Southwestern Medical Center at Dallas. She enjoyed a successful private practice career in Pensacola, Florida for many years before relocating to San Antonio. In 2011 Dr. David joined the faculty at UT Health San Antonio, Joe R. & Teresa Lozano Long School of Medicine and currently serves as an associate professor in the Department of Obstetrics and Gynecology. She has served as medical director of Women’s Preventative Health and Ambulatory Services for University Health System as well as Medical Director of Women’s Health and Ambulatory Services for UT Health San Antonio. She is currently the Ob/Gyn Associate Residency Program Director as well as Co-director of the Ob/Gyn Residency Mentorship Program and has been the recipient of several teaching awards. Dr. David recently joined the UT Teen Health program to further her interest in adolescent patient care. Dr. David is certified by The American Board of Obstetrics and Gynecology. Her interests include general obstetrics and gynecology, benign vulvar disease, adolescent gynecology, contraception, resident mentorship, and resident wellness.

Cristina M. Wallace Huff, MD
Associate Professor/Clinical, Associate Program Director
wallacehuff@uthscsa.edu | 210-567-5035
Dr. Wallace Huff received her Bachelor of Science degree in Genetics from Texas A&M University in 2006. She earned her M.D. from the University of Texas Health Science Center McGovern Medical School in Houston in 2010, and completed her Obstetrics and Gynecology residency at the University of Texas Health Science Center at Houston in 2014.
During residency, Dr. Wallace Huff received the Resident Achievement Award Outstanding Laparosendoscopic Surgeon from the Society for Laparoscoendoscopic Surgeons. Dr. Wallace Huff joined the faculty at the McGovern Medical School and received the Dean’s Excellence in Teaching award and APGO Excellence in Teaching Award.
After six years on faculty in Houston, Dr. Wallace Huff joined the UT Health San Antonio faculty in 2020. Dr. Wallace Huff is certified by The American Board of Obstetricians and Gynecology. Her clinical interests include general obstetrics and gynecology, medical education, contraception, and minimally invasive surgery.

Contact us
For questions about the residency program, contact:
Jackie Barrera
Academic Programs Coordinator
Phone: 210-567-4953
Fax: 210-567-3485
Email: barrerajd@uthscsa.edu