Healthy Kids

Contact Member Services

Call HPSM Member Services for personal assistance with your benefits or if you have concerns. Our staff members speak Spanish, Tagalog, and Chinese, and we use phone interpreters to assist members in other languages.

Let us know if you have:

  • Questions about your medical benefits, co-payments, or premiums
  • Want to choose or change your primary care doctor (primary care provider)
  • A grievance or want to appeal a coverage decision

Member Services

Toll free: 1-800-750-4776
Local: 650-616-2133
TTY: 1-800-735-2929 or dial 7-1-1

Monday–Friday 8:00 a.m. to 6:00 p.m.


Email Member Services

Visit Us in Person

Drop by our office to speak face-to-face with a representative. No appointment is necessary. To help us better assist you, please bring your HPSM member ID card with you.

 Health Plan of San Mateo
801 Gateway Blvd., Suite 100
South San Francisco, CA 94080

We are available Monday–Friday 8:00 a.m. to 5:00 p.m.
Our office is ADA-compliant and wheelchair accessible.

Contact Delta Dental

For questions about coverage and choosing dentists, contact Delta Dental Customer Service at 1-866-527-9564.
Hours: Monday–Friday between 7:00 a.m. and 5:00 p.m.
The group number for San Mateo Healthy Kids is SM60.