CUCAMONGA VALLEY MEDICAL GROUP - RANCHO CUCAMONGA - 50 Reviews - 7777 Milliken Ave, Rancho Cucamonga, California - Internal Medicine - Phone Number - Yelp Cucamonga Valley Medical Group - Rancho Cucamonga 2.4 (50 reviews) Claimed Internal Medicine, Osteopathic Physicians, Family Practice Edit Open 8:00 AM - 5:00 PM See hours Write a review. CUCAMONGA VALLEY MEDICAL GROUP - RANCHO CUCAMONGA - 46 Reviews - 7777 Milliken Ave, Rancho Cucamonga, CA - Yelp 46 reviews of Cucamonga Valley Medical Group - Rancho Cucamonga "I have been seeing Nurse Pract. Janet Ursua for years and have recommended her to everyone who asks.