Felix German, M.D. 1248 Montauk Hwy, West Islip, NY11795 Dr. Felix German is a general practice physician serving West Islip and the surrounding communities. Dr. German has…More practiced for over 40 years and specializes in family and internal medicine. He can diagnose and treat all types of conditions including chickenpox, flu, high triglycerides, sinusitis and strep throat. Call 631-669-0707 to schedule an appointment.