Mon-Fri: 7:30AM-4:00pm

Principal Investigators

Madhavi Rudraraju, MD

Principal Investigator
San Antonio, TX

Specialties: Gastroenterology and Transplant Hepatology
Education: Andhra Medical College, 2001
Residency: University of Oklahoma Health Sciences Center, 2006
Transplant Hepatology at Mayo Clinic – Arizona, 2007
Gastroenterology and Hepatology at University of Oklahoma Health Science Center, 2010

Practicing Since: 2010
Certifications/Publications: Over 6 original publications in peer-reviewed journals and 4 publications worldwide. 3 board certifications, and over 2 years of research support in the areas of Non-Alcoholic Fatty Liver Disease.

Provider Background: Dr. Rudraraju is a board certified hepatologist with over 12 years of practice. Throughout her career she has had tremendous positions, including:

Medical Director of Methodist Liver Disease and Transplant Program VNOS Director
Medical Executive Committee as Chief of Transplant service line
Clinical Review Committee
Physician Advisory Committee
Active member of American Medical Association, American College of Gastroenterology, American Gastroenterology Association, and the American Association for the Study of Liver Disease, and European Association for the Study of the Liver (EASL).

Dr. Rudraraju has been with Pinnacle since 2020 and has formed a multitude of relationships with San Antonio’s physicians and experts to raise awareness of liver disease and find a treatment for the patients that need it most.

Jacques Benun, MD

Principal Investigator
Austin & Georgetown, TX

Specialty: Pediatrics, Research
Education: Central University of Venezuela, 1992
Residency: Boston University School of Medicine, 1995
Chief Residency: Boston University School of Medicine, 1996

Practicing Since: 1992
Certifications/Publications: 9 original publications in peer-reviewed journals, 10 licensed certifications, and over 16 years of research support in the areas of pediatric research.
Provider Quote: Striving to provide cutting-edge clinical research to our patients in the Austin and surrounding communities.
Provider Background: Dr. Benun first moved to Texas in 2017, bringing with him over 20 years of medical experience. Throughout his physician years, he has been:
  • A professor in Pediatrics at Alpert Medical School of Brown University
  • Clinical Associate Professor of Dell Medical School at the University of Texas in Austin
  • Research supporter in the Pfizer COVID vaccine study in children 5-11 years’ old
Heather Delaney, MD

Heather Delaney, MD

Principal Investigator

Specialty: Pediatrics, Neonatology, Research
Provider Background: Dr. Heather Delaney is a double Board-Certified Pediatrician and Neonatologist with over 20 years of broad experiences in the medical field. She is a 17-year Veteran of the US Air Force and Army. Her areas of expertise include healthcare quality and education, infectious disease monitoring and prevention, medication management and healthcare leadership. She is a Certified Simulation Healthcare Educator and an active contributor to online education platforms for medical students and residents. She has her Black Belt in Lean Six Sigma methodology and is fiercely committed to Zero Harm in healthcare. She has over 15 years of experience in Clinical Research and has over 75 publications, platform and poster presentations within her areas of expertise. She is married to an Active Duty service member of the US Army and has two girls both of whom were born in Hawaii.