Dr. Mary Dale Peterson graduated with honors from Texas A&M University with a degree in zoology before earning her medical degree from The University of Texas Medical Branch in 1981. As a medical student, she served as a student officer, led the Galveston Rape Crisis Center, and was an active member of the Phi Chi Fraternity. During her time in Galveston, she also met her husband, Rafael Coutin, on the beach — brought together by a shared love of sailing. They married during her senior year.
After training, Dr. Peterson and her family moved to Corpus Christi, where she practiced pediatric anesthesiology and later pediatric critical care at Driscoll Children’s Hospital. She held numerous leadership roles within the medical staff, including chief of staff. When CHIP legislation was enacted, she was encouraged to help the hospital launch a children’s health plan. She eventually became its CEO, growing the plan from 10,000 to more than 200,000 members across South Texas.
While she loved caring for infants and children in the OR and ICU — especially those with congenital heart disease — she found deep fulfillment in serving as the only physician CEO of a Medicaid plan in Texas. Working alongside her team and many dedicated physicians, she helped create innovative care models that prevented illness and injury in children and pregnant women. Their work contributed to lowering preterm birth rates, reducing childhood caries, and improving maternal morbidity and mortality across the region.
After 13 years as CEO, Dr. Peterson was appointed executive vice president and chief operating officer of Driscoll Health System in 2019. She has played a key role in the system’s tremendous growth, including the opening of a new freestanding children’s hospital in Edinburg, Texas, and the recruitment of outstanding physicians.
Under her leadership, the Driscoll Children’s Heart Center has become one of the nation’s leading programs. She has also championed children’s mental health initiatives, including placing Driscoll mental health professionals in local public schools.
Dr. Peterson has been deeply involved in organized medicine, serving as president of the American Society of Anesthesiologists (ASA) in October 2019. She became known as the “COVID War President,” guiding the profession through unprecedented challenges. She was recognized by then–Vice President Mike Pence for helping address the national ventilator shortage — an issue the ASA had anticipated and proactively developed solutions for. Despite the difficulties of that time, she remains proud of her colleagues’ courage and innovation in caring for patients with COVID.
Dr. Peterson has also served as chair of the UTMB Development Board, and she and her husband have supported UTMB through multiple endowments. They are grateful for the foundational education they received at UTMB by their mentors. Their middle son, Mark, also earned his medical degree from UTMB and completed a year of internal medicine there before beginning his anesthesiology residency at Northwestern in Chicago.
Dr. Peterson is joined by her husband of 46 years, Rafael; her sons Christopher and Steven; and her siblings. Mark is unable to attend because he is on call as a physician in Austin. She is deeply grateful to her family — especially her husband — for their unwavering encouragement and support.
Dr. Peterson is humbled by the prestigious Ashbel Smith Distinguished Alumni Award and is honored and profoundly grateful to the John Sealy School of Medicine Alumni Association for this recognition.