Chinn Aaron MD is located at 9 Rancho Diablo Rd, Lafayette, CA. This location is in the Upper Happy Valley Area neighborhood. This business specializes in Doctors & Clinics. Chinn Aaron MD is open Mon, 9am-5pm ; Tue, 9am-5pm ; Wed, 9am-5pm ; Thu, 9am-5pm ; Fri, 9am-5pm ; Sat, Closed ; Sun, Closed. and accepts Visa.