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Optum California

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You're one of a kind. Your care should be, too.

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COVID-19: What you need to know

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Find the latest information on COVID-19 care and vaccines, and get answers and resources for yourself and your family.

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Welcome to Optum

Optum is a leading medical group in Southern California. Our family of providers cares for more than 2 million members throughout Los Angeles, Orange, San Diego, Riverside and San Bernardino counties. 

We’re proud to announce that Optum Care Medical Group, Cassidy Medical Group, HealthCare Partners and Magan Medical Clinic recently came together under the Optum name. This website includes information about our care and services. 

We're committed to expert, personalized care that keeps you healthy and feeling your best. We see patients at nearly 200 locations, including 80 urgent care centers and 40 top hospitals. 

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Become a patient

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

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Medicare

We offer services, resources and programs to people who are eligible for and already on Medicare. 

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Patient support 

If you have questions about insurance, billing and other non-medical questions, we’re here to help. 

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Types of care

We offer a full range of care to meet your specific needs and help improve your health. 

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primary care
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Professional resources

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Insights for medical providers

Discover how the Optum Care difference can help you and your patients.

Career opportunities

Join a group of clinicians and non-clinicians who share a vision of better health care for all.

News for Medicare agents

Find out how we can help your clients stay healthy and independent.