John Jay Shannon, MD, is the CEO of the Cook County Health & Hospitals System (CCH). The CCH Board of Directors unanimously appointed Dr. Shannon to the position on June 27, 2014. He served as the interim CEO for the previous three months, while continuing to serve as Chief of Clinical Integration.

An area native, Dr. Shannon grew up in LaGrange, IL. After graduating from St. Ignatius College Prep and Spring Hill College, Dr. Shannon received his medical degree from Rush Medical College. He trained in Internal Medicine and was a Chief Resident at University of Texas Southwestern Affiliated Hospitals in Dallas, and later earned specialty training in Pulmonary and Critical Care Medicine at the University of Michigan Medical Center in Ann Arbor.

Dr. Shannon spent most of his professional career at John H. Stroger, Jr. Hospital of Cook County, formerly Cook County Hospital. He first joined the medical staff in 1990 and served in several roles, including director of the Adult Asthma clinic, where he led several quality improvement collaborations aimed at improving the delivery of care for asthma patients within the health system and across the city. He also served as an Associate Chair of the Department of Medicine and chief of the Divisions of Pulmonary and Critical Care Medicine at Stroger.

Dr. Shannon served as Executive Vice President and Chief Medical Officer at Parkland Health & Hospital System in Dallas from 2007-2012. In 2013 he rejoined CCH to serve as the Chief of Clinical Integration, a position in which he organized CCH resources to deliver better patient care, oversaw professional health education and helped strategically position the leadership team within the health system.

For seven years Dr. Shannon served on the executive board of the American Lung Association of Metropolitan Chicago, now the Respiratory Health Association of Metropolitan Chicago. He also served five years on the executive board of the Chicago Asthma Consortium. While in Dallas, he served for 2 years as a trustee of the Dallas-Ft. Worth Hospital Council.

Dr. Shannon and his wife reside in the western suburbs. They have three adult children.