ISLAND INTERNAL MEDICINE, Anacortes, WA. Hospital Details: Internal Medicine, Physician Assistant (PA) • 2 Providers. 912 32nd St, Anacortes WA, 98221.Make an Appointment. (360) 293-4343. Telehealth services available. ISLAND INTERNAL MEDICINE is a medical group practice located in Anacortes, WA that specializes in Internal Medicine and Physician Assistant (PA)..