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Welcome to Optum

Formerly North American Medical Management (NAMM) California

Call our network at 1-800-956-8000.

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a fresh approach to health care

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Since 1993, we have offered the right care, at the right time, to our patients in Southern California. We have found new ways to work together to make sure you are at the center of all we do. This helps us offer better care and get better results.

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Bringing new ideas to health care

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We bring new ideas to health care so we can offer innovative care, find new ways to work as a team and make sure you get the right care at the right time.

Our network includes more than 600 primary care physicians and more than 2,000 specialists. We also offer a full range of services. These help doctors and other health care providers do what they do best: focus on patients, not paperwork.

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Who we are

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We believe that improving quality will help make health care more efficient. We also want to make sure we use health care resources in the right way.

When needed, we can quickly adapt to what our patients and providers need. 

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Mission

To be the most trusted name in health care 

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Vision

Improve quality to deliver health care efficiently and use health care resources in the right way.

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Values

Do what is right
Project pride
Care for people
Respond to needs
Be the standard 

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Our solutions

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Are you an organization looking to join Optum? Learn more about our strategy and growth solutions.