ALFRED B JOHNSON MD GASTRO SURGEON BUSINESS HOURS BUSINESS HOURS OF ALFRED B JOHNSON MD GASTRO SURGEON Gastroenterological Surgery Clinic Open Hours in Merced, CA See Alfred B Johnson MD Gastro Surgeon Hours of Operation Below. Call (209) 263-4517 to Schedule an Appointment. 315 Mercy Ave Ste 400, Merced CA, 95340
