Carefirst Medical Group Inc is located at 3550 East Philadelphia Street, Ontario, CA. This business specializes in Doctors & Clinics, Physical Therapy and General Practice Medicine. Carefirst Medical Group Inc is open Mon, 8am-6pm; Tue, 8am-6pm; Wed, 8am-6pm; Thu, 8am-6pm; Fri, 8am-6pm; Sat, Open 24 hours; Sun, Open 24 hours and accepts All Major Credit Cards, American Express, Discover,...