Sonya L. Merrill, MD, PhD, FACP
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Sleep Medicine Physician
Board certified by the American Board of Internal Medicine
Dr. Sonya Merrill is a Sleep Medicine Physician providing comprehensive evaluation and management of sleep disorders at Cooper Clinic. She received a Master of Arts in Medical Ethics and Law and a Doctorate in Philosophy from the University of London before completing her medical degree at Harvard Medical School. Dr. Merrill completed an internal medicine residency at Texas Health Presbyterian Hospital of Dallas and subsequently completed a sleep medicine fellowship at the University of Texas Southwestern Medical Center in Dallas. She is board certified by the American Board of Internal Medicine in Internal Medicine and Sleep Medicine.
Before joining Cooper Clinic, Dr. Merrill spent 15 years in solo private practice at Dallas Sleep Medicine Specialists. During this period she was the medical director of sleep labs at Medical City Dallas and Texas Health Dallas. She served for 12 years as the associate program director of the internal medicine residency at Texas Health Dallas. Dr. Merrill is a fellow of the American College of Physicians as well as a member of the American Academy of Sleep Medicine, Massachusetts Medical Society, Dallas County Medical Society and Texas Medical Association.
Throughout her career, Dr. Merrill has served as a leader in the community with various volunteer opportunities including board member for Dallas Bach Society, ethics committee member for Texas Health Dallas and medical director for Joy India Medical Mission Teams.