You can enroll by phone, online or through the mail.

You can also visit, the official U.S. government site for Medicare.

About Golden State Medicare Health Plan

You are completing a 2021 Online Enrollment Request to Golden State Medicare Health Plan.

Enrolling online is safe & secure. All your information is encrypted..

Download and Mail in an Enrollment Form

Complete the form, sign it, and return to:

Golden State Medicare Health Plan
Enrollment Department
PO Box 10729
Newport Beach, CA 92658

For questions or assistance completing the enrollment form, please call Golden State Medicare Health Plan Member Services, toll-free at 1-877-541-4111 (TTY: 711) 8 AM to 8 PM, 7 days a week from October 1 - March 31, and Monday - Friday from April 1 - September 30.

Or, call Medicare at 1-800-MEDICARE (1-800-633-4227). TTY users can call 1-877-486-2048.

Medicare beneficiaries may also enroll in Golden State Medicare Health Plan through the CMS Medicare Online Enrollment Center located at