Contact Us

Customer Service
Toll Free: 1-855-996-8422 (TTY: 711)*
Fax Number: 1-833-407-0025

Non-Member/Enrollment
Toll Free: 1-855-921-3777 (TTY: 711)*

Company Headquarters
P.O. Box 2336
Dublin, CA 94568

Telephone lines are open 8 a.m. to 8 p.m., seven days a week. You may reach a messaging service on weekends from April 1 to Sept. 30 and holidays. Please leave a message, and your call will be returned the next business day.

Mailing address and phone number for written customer service, appeals and grievances requests:

Stanford Health Care Advantage
PO Box 5904
Troy, MI 48007

1-855-996-8422 (TTY: 711)* (Customer Service)

*Please note that our main customer service number (above) is the designated number for submitting oral requests.


Interested in Learning More About a Stanford Health Care Advantage (HMO) Plan?

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Medicare Advisor

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Medicare Seminar

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