University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of Medicine Pediatric Endocrinology people

Program Director

Endocrinologist, Assistant Professor of Pediatrics at University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of Medicine

Diabetes, Epigenetics of childhood obesity, metabolic and body composition assessments on infants of diabetic mothers, educational scholarship

Jane Lynch, MD

Associate Program Director

Pediatric medicine physician, Professor of Pediatrics and Division Chief at University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of Medicine

Division of Endocrinology & Diabetes, Childhood Diabetes – insulin combination therapies, insulin pumps, Chronic Disease in Children, type 2 diabetes.

Jessika Weber, DO

Associate Fellowship Director

Endocrinologist, Assistant Professor at University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of Medicine

Reality TV, glamping, hiking, skiing, Peloton, traveling, and eating anything that I haven’t cooked

Emily Gallagher, MD

Pediatric Critical Care Medicine Fellowship

Pediatrics resident, University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of Medicine

Felipe Pubillones, DO, MS

Pediatric Endocrinology Fellow, 2025-2028

Pediatric Endocrinology fellow, University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of Medicine

Gary Francis, MD, PhD

Professor of Pediatrics

Pediatric medicine physician, Professor of Pediatrics at University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of Medicine

Thyroid cancer in children, thyroid neoplasia and any thyroid diseases in children

Luisa Rodriguez, MD, MS

Associate Professor/Clinical; Pediatric Endocrinology Medical Director

Endocrinologist, Associate Professor/Clinical at University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of Medicine

Pediatric clinical research that involves new treatment options for children with Type 2 diabetes and appetite suppression in obesity.

Maria Rayas, MD

Associate Professor of Pediatrics

Endocrinologist, Associate Professor of Pediatrics at University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of Medicine

Cystic Fibrosis, Continuous glucose monitoring in Type 1 Diabetes and Cystic Fibrosis Patients, Cystic Fibrosis-Related Diabetes Screening, Diagnosis, and Treatment

Monica Garcia-Holguin, MD

Pediatric Endocrinology Fellow, 2024-2027

Pediatric Endocrinology fellow, University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of Medicine

Ruby Favela-Prezas, MSN

Specialist, Pediatric Endocrinology & Diabetes; Family Nurse Practitioner

Advanced practice registered nurse in pediatrics at University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of Medicine

Diabetes Technology and Education

Valeria Marin, DNP

Assistant Professor; Family Nurse Practitioner

Advanced practice registered nurse in pediatrics at University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of Medicine