Suggest an Edit Name* Categories* Doctor Hospital Pharmacy Add category State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 09:00 am — 05:00 pm Tuesday: 09:00 am — 05:00 pm Wednesday: 09:00 am — 05:00 pm Thursday: 09:00 am — 05:00 pm Friday: 09:00 am — 05:00 pm Saturday: 09:00 am — 03:00 pm Company description Joann Dumas located in the city of Castro Valley, state California. The legal address of the Doctor 19850 Lake Chabot Rd. Directions to the Doctor Joann Dumas can be found on our interactive map. Ask your questions by calling 5105828555 on workdays.NPI number: Data not providedProvider's gender: Data not providedPractice names: Data not providedBoard certifications: Data not provided Your comments (not for publishing) * — Required information Joann Dumas - Castro Valley ← View details 19850 Lake Chabot Rd, California, Castro Valley, 94546, Castro Valley, California 94546 5105828555