Customer Service
Monday through Friday, 8:00am to 5:00pm PST
*Closed for lunch: 12:30 p.m. to 1:00 p.m.
(800) 445-5747 or (925) 820-8300
TTY to Voice (800) 735-2929
Voice to TTY (800) 735-2922
Mailing Address
Hill Physicians Medical Group
P.O. Box 5080
San Ramon, CA 94583
*Due to California's shelter-in-place order our call center hours have changed.
Hill Physicians Medical Group
Representing the doctors of Muir Medical Group IPA, Inc.
175 Lennon Lane, Suite 202
Walnut Creek, CA. 94598
Provider Support
For current practices with questions contact your Practice Support Advisor. Or go to Provider Resources for portal links.
You may also fill out the above online contact form.