Contact Us
Medi-Cal - Healthy Kids - Healthy Families - HealthWorx
Member Services: 1-800-750-4776 (toll free) or (650) 616-2133
Monday through Thursday: 8 a.m. to 6 p.m.
Friday: 9:30 a.m. to 6 p.m.
Office Hours:
Monday through Thursday: 8 am to 5 pm
Friday: 9:30 a.m. to 5 p.m.
CareAdvantage
CareAdvantage Unit: 1-866-880-0606 (toll free) or (650) 616-2174
Monday through Sunday: 8:00 a.m. to 8:00 p.m.
Office Hours:
Monday through Friday, 8:00 a.m. to 5:00 p.m.
Members with hearing and speech impairments can use the California Relay Service (CRS)
at 1-800-735-2929 (TTY) or dial 711.
Health Plan of San Mateo
701 Gateway Blvd, Suite 400
South San Francisco, CA 94080