HealthWorx HMO
Contact Member Services
Contact us for personal assistance with your benefits. Our staff members speak Spanish, Tagalog, and Chinese, and we use phone interpreters to assist members in other languages.
A member services representatives can help you:
- understand your benefits, covered services, and co-pays
- answer questions about HealthWorx HMO eligibility and premiums
- choose a primary care doctor
- contact the Grievance and Appeals Coordinator
Member Services
Toll free: 1-800-750-4776
Local: 650-616-2133
TTY: 1-800-735-2929 or dial 7-1-1
Phone hours: Monday–Friday 8:00 a.m. to 6:00 p.m.
Office hours: Monday–Friday 8:00 a.m. to 4:00 p.m.
Email: MemberServicesSupport@hpsm.org
Email Member Services
Visit Us in Person
Health Plan of San Mateo
801 Gateway Blvd., Suite 100
South San Francisco, CA 94080 - map
Hours are
8:00 a.m. to 4:00 p.m. Monday though Friday
Members can drop by our office to speak with a Member Services Representative in-person. No appointment is necessary. To help us better assist you, bring your Member ID card with you. Visitors only need to wear masks during private appointments. We have masks on hand for those who do not have them. Other health and safety precautions are in place as well. Our office is ADA-compliant and wheelchair accessible.
For more information about visiting HPSM’s office, call the HPSM Reception Desk at 650-616-0050.
Eligibility & Premiums
San Mateo County Workers
Service Employees International Union, Local 521, call the SEIU at 1-800-842-6635 for more information on covered services.
IHSS workers With COBRA, call the San Mateo Public Authority at 650-573-3649.
San Mateo County Extra Help Employees, call County Employee Benefits at 650-363-1919.
City of San Mateo Part-Time Employees
Service Employees International Union, Local 521, call the SEIU at 1-800-842-6635 for more information on covered services.