Areas of particular interest for Dr. Felsher include heart failure and hypertension (high blood pressure). Dr. Felsher's professional affiliations include Cardiology Consultants of Philadelphia (CCP), Crozer-Keystone Health System, and Lankenau Medical Center. He is in-network for Coventry, Aetna HSA, and Coventry HSA, in addition to other insurance carriers. He has a closed panel. Dr. Felsher attended SUNY, University at Buffalo School of Medicine & Biomedical Sciences for medical school and subsequently trained at Hahnemann University Hospital, Hospital of Saint Raphael, and a hospital affiliated with the University of Medicine and Dentistry of New Jersey (UMDNJ) for residency.