During Dr. Mainwaring’s career as a surgeon, he has contributed to this specialized field of surgery in many realms, including clinical medicine, basic science research, and publications. Dr. Mainwaring is a member of all four professional thoracic surgical organizations, including the American Association of Thoracic Surgery, Society for Thoracic Surgeons, Western Thoracic Surgical Association, and the Southern Thoracic Surgical Association and is also a member of the American College of Surgeons and Congenital Heart Surgeons' Society.
In 2012, the congenital cardiac surgery fellowship program at Lucile Packard Children’s Hospital (LPCH) received accreditation from the Accreditation Council for Graduate Medical Education (ACGME). This program is one of thirteen accredited congenital cardiac surgery training programs in the US. Dr. Mainwaring has been named the program director for this program and was recently invited to join the Thoracic Surgical Directors Association. Dr. Mainwaring teaches intra-operative management and surgical technique to the congenital cardiac surgery fellows. Our current fellow is Louis Capecci, MD.