Medicare
At Optum, we offer unique services, resources and programs to those on Medicare. Our goal is to offer you what you need to stay healthy and independent.
New to Medicare
Good health starts with making good decisions. If you’re eligible to enroll in Medicare, here are some first steps to take:
- Learn more about Medicare
- Learn about the Medicare plans we accept:
- We accept most major Original Medicare, Medicare supplement and Medicare Advantage plans.
- Learn how choosing the right Medicare Advantage plan gives you better health care at lower costs.
New to Optum and already on Medicare
If you have Original Medicare (Parts A and B) alone or with a Medicare supplement:
- Call the Optum office you want to go to and ask if it accepts your medical plan.
- You can make an appointment with any doctor who’s accepting new Medicare patients.
If you have a Medicare Advantage plan:
- Learn about the Medicare Advantage plans we accept.
- Choose a primary care doctor who's either:
- An Optum primary care doctor, or
- Part of the Optum network of California.
- Find a primary care doctor who’s accepting new Medicare patients.
If you’re not sure what plan you have:
- Check your health insurance card or materials.
- If you’re still not sure, call 1-866-964-1547, TTY 711
Current Optum patient
If you want to review or change Medicare plans call 1-855-883-5998, TTY 711, Monday through Friday, 8 a.m. to 5 p.m. We can connect you with a licensed, independent insurance agent who specializes in Medicare.
The agent can do a no-cost health care review and help you select a Medicare plan that's right for you. The agent can also help you enroll during certain enrollment periods:
- Medicare Annual Election Period: Oct. 15 to Dec. 7.
- Medicare Advantage Open Enrollment Period: Jan. 1 to March 31. If you’re enrolled in a Medicare Advantage Plan, you can switch to a different Medicare Advantage Plan.
- You can also make changes to your Medicare Advantage and Medicare prescription drug coverage when certain life events happen. These include a move or loss of coverage. This is called a Special Enrollment Period.
FAQs
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Helpful resources

Accepted health plans
We can help you get the information and support you need in Southern California.

Become a patient
We care for everyone from newborns to older adults and accept most health insurance plans.