Brentwood Medical Group is located at 2400 Balfour Rd # 120, Brentwood, CA. This location is in the John Muir Medical Center neighborhood. This business specializes in Doctors & Clinics. Brentwood Medical Group is open Mon, 9am-5pm ; Tue, 9am-5pm ; Wed, 9am-5pm ; Thu, 9am-5pm ; Fri, 9am-5pm ; Sat, Closed ; Sun, Closed. and accepts Visa.