Naval Health Clinic Oak Harbor > About Us > History. Health (6 days ago) MHS Patient Portal UBO EFMP The Family Practice Clinic, consisting of Pediatrics, Medical Clinic, Aviation Medicine, and Dental, was located on Ault Field across from where the base gas station is now.and administrative offices. On 1 July 1968, the Medical Department of NASWI, became Naval Hospital Whidbey Island (NHWI)..