Before completing his residency at Edward Hines, Jr. VA Hospital and a hospital affiliated with Loyola University, Dr. Mannion attended medical school at Howard University College of Medicine. He is rated 4.5 stars out of 5 by his patients. Blue Cross/Blue Shield, CorVel, and Blue Cross Blue Shield PPO are among the insurance carriers that Dr. Mannion accepts. He is affiliated with Alexian Brothers Medical Center and St. Alexius Medical Center.