Find information about and book an appointment with Dr. John F Fisher, MD in Sussex, NJ. Specialties: Internal Medicine. menu Close main menu. MyChart Patient Portal; Locations; Contact; Careers; Find a Doctor; Patients & Visitors; Conditions & Treatments; ... 16 East Main Street Sussex NJ Monday : 09:00 AM - 05:00 PM Tuesday : 09:00 AM - 08:00 ....