Meet our Texas Diabetes Institute Executive Team
Ralph A. DeFronzo, MD
Ralph A. DeFronzo, MD serves as Deputy Director of the Texas Diabetes Institute. As one of the nation’s leading diabetes researchers, Dr. DeFronzo is also a Professor of Medicine and Chief of the Diabetes Division at the UT Health Science Center at San Antonio and the South Texas Veterans Health Care System, Audie L. Murphy Division in San Antonio. He is a graduate of Harvard Medical School and served his Residency in Internal Medicine at Johns Hopkins Hospital. He has completed fellowships in endocrinology at the National Institutes of Health/Baltimore City Hospitals, and in Nephrology at the Hospital of the University of Pennsylvania.
Terri De La Haya, RN, BSN, MPH
Terri De La Haya, RN, BSN, MPH serves as Vice President of the Texas Diabetes Institute. She earned her Bachelor of Science degree in nursing from the UT Health Science Center at San Antonio Nursing School, and a Masters in public health from the UT Health Science Center at Houston, School of Public Health.
Angela Casias, RN, MSN
Angela Casias, RN, MSN serves as Executive Director of the Texas Diabetes Institute. She earned her Bachelor of Science degree in nursing from the University of the Incarnate Word, and a Masters in nursing administration from the University of Texas Health Science Center in San Antonio.
Katherine LaCivita, MD
Dr LaCivita serves as Medical Director of adult Diabetes/Endocrinology Clinic at the Texas Diabetes Institute (TDI) and Medical Director University Medicine Associates at the Texas Diabetes Institute. Dr. LaCivita is Assistant Professor of Medicine at the UT Health Science Center at San Antonio (UTHSCSA). She currently supervises endocrine, internal medicine and family practice physicians, nursing and clerical staff at TDI and a satellite endocrine north clinic.
Dr. LaCivita is a graduate of the Uniformed Service University of the Health Sciences, F. Edward Hebert School of Medicine in Bethesda, Maryland, and served her internal medicine residency at Wright-Patterson USAF Medical Center Air Force Base in Dayton, Ohio. She completed a fellowship in endocrinology at USAF Wilford Hall Medical Center at Lackland Air Force Base in San Antonio, Texas. She is board certified in internal medicine and board certified and recertified in endocrine, diabetes, and metabolism.
Jane L. Lynch, MD
Dr. Jane Lynch, MD serves as the Medical Director of the Children's Center at the Texas Diabetes Institute and as an Assistant Professor/Clinical in the Department of Pediatrics at the UT Health Science Center at San Antonio. She received a Bachelor's of Science in microbiology from Indiana University in Bloomington, Indiana. She received her medical degree from Wright State University School of Medicine in Dayton, OH.
Eugenio Cersosimo, MD
Eugenio Cersosimo, MD is currently the Medical Director of Clinical Research at the Texas Diabetes Institute and an Associate Professor of Medicine at the UT Health Science Center San Antonio. He obtained his medical degree at the Universidade Federal Fluminense in Rio de Janeiro, Brazil and moved to Vanderbilt University in Nashville, Tennessee where he graduated with a Ph.D. in physiology and metabolism. He served his medical residency training and endocrinology fellowship program at the Mayo Clinic in Rochester Minnesota with a special degree in clinical investigation.