He is a graduate of Tufts University School of Medicine. Dr. Hartner's training includes residency programs at New York-Presbyterian Hospital and a hospital affiliated with Weill Cornell Medical College. Clinical interests for Dr. Hartner include bladder cancer, esophageal cancer, and rectal cancer. Dr. Hartner is rated 3.5 stars out of 5 by his patients. He takes several insurance carriers, including Blue Cross/Blue Shield, Coventry, and TRICARE. He is affiliated with Pennsylvania Hospital and Hospital of the University of Pennsylvania (HUP).