Celia-Reyes Acuna, M.D
Board Certified: American Board of Pediatrics.
Dr. Celia Reyes Acuna is a board-certified pediatrician with over five decades of clinical and research experience. She currently serves as a Principal Investigator at South Texas Clinical Research, where she leads pediatric and vaccine-focused clinical trials that contribute to the advancement of public health and childhood disease prevention.
A graduate of the University of Santo Tomas in the Philippines, Dr. Acuna completed her medical training and pediatric residencies at prestigious institutions including Tulane University and Baylor College of Medicine. Her diverse career includes experience as a pediatrician in Hawaii and Texas, and she has served in leadership and research roles since the 1970s.
Dr. Acuna has led and participated in numerous clinical trials examining the safety and immunogenicity of vaccines for infants, children, and adolescents—including studies on varicella, pneumococcal disease, HPV, and SARS-CoV-2. Her longstanding dedication to pediatric research has made her a trusted figure in the Corpus Christi medical community.
Jeffrey D. Johnson, D.O
Board Certification: American Osteopathic Boardof Family Physicians
Michael Winnie, M.D
Board Certification: American Board of Family Practice
Dr. Winnie has worked with the company since 2007. He has been a Principal Investigator on over twenty six studies, working with a variety of studies.
Dina F. Eftimescu M.D
Board Certification: American Board ofObstetrics and Gynecology
Dr. Acuna has worked with the company since 2007.She has been a Principal Investigator on over 7studies, specializing in children and infants.
Richard Leggett D.O.
Board Certification: American Board of Family Practice
Dr. Leggett has worked with the company since 2011. He has been a Principal Investigator on over twenty-four studies, working with a variety of studies.