Currently, Mcminnville Internal Medicine specializes in Family Medicine, Gastroenterology, Geriatrician and Internal Medicine with 7 physicians. Mcminnville Internal Medicine Office Locations. Mcminnville Internal Medicine. 254 NE Norton Ln McMinnville, OR 97128 (503) 472-9002. Monday : 8:00 AM - 4:30 PM: Tuesday :.