John A. Brennan, M.D.

Executive Vice President and Chief Clinical Integration Officer, WellStar Health System

John A. Brennan, M.D.
John A. Brennan, M.D.

John A. Brennan, MD, FACEP, MPH, is the Executive Vice President and Chief Clinical Integration at WellStar. He oversees the clinical integration network, population health, quality, safety, service lines, research, enterprise project management office, enterprise intelligence, care coordination, community health, diversity, inclusion and clinical research with over 25 years of diverse and national healthcare experience as a practicing physician, teacher, author, and administrator. Board certified in Emergency Medicine, Dr. Brennan was named one of Becker’s Top 125 National Physician Leaders of Hospitals and Health Systems.

Dr. Brennan has held several senior leadership roles in private practice, health care systems, and academia. Dr. Brennan was the Senior Vice President of Clinical and Emergency Services for Barnabas Healthcare System from 2003-2008. Before joining WellStar, Dr. Brennan was the President and CEO for Newark Beth Israel Medical Center and Children’s Hospital of New Jersey from 2008-2016. Throughout the 8 years, Newark Beth Israel Medical Center and Children’s Hospital of New Jersey received multiple quality and safety awards, including US News, and World report acknowledgement of being a top 50 Cardiovascular Hospital. He has served on the Board of Directors of the American College of Emergency Physicians and was a member of the American Board of Pediatrics’ Pediatric Emergency Medicine Sub-Board.  Dr. Brennan has been the Emergency Services Medical Consultant to New Jersey’s Deputy Commissioner of Health and Senior Services. He is one of the primary editors of two textbooks: Pediatric Emergency Medicine and Principles of EMS Systems. He has also authored several scientific papers and textbook chapters.  A renowned lecturer nationally, Dr. Brennan was named the American College of Emergency Physicians’ Outstanding Speaker of the Year.  He continues to lecture on healthcare economics, healthcare strategy, and healthcare innovation.

Dr. Brennan received his Medical Degree from Georgetown University School of Medicine in Washington, D.C. and completed his Emergency Medicine Residency at Los Angeles County/University of Southern California Medical Center. Dr. Brennan received his Master’s in Public Health, Health Policy, and Health Services Management from Columbia University.  Dr. Brennan served as a Major in the United States Air Force where he was Chief of Emergency Services at the 22nd Strategic Air Command’s Medical Center at March Air Force Base. Before being honorably discharged, Dr. Brennan was awarded the Air Force Commendation Medal, the National Defense Service Medal, Air Force Training Ribbon and Outstanding Unit Ribbon, and Honorary Chief Master Sergeant. Dr. Brennan’s wife of 35 years is Mary Beth. They are proud parents of their children: Kelly, Nick, Matt, Jen and Colleen, and are happy grandparents to their grandson Roark and their newest addition, their granddaughter, Maeve.