Welcome to Optum
Optum is a leading medical group in Southern California. Our family of providers cares for more than 2 million patients 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.
Types of care
We offer a full range of care to meet your specific needs and help improve your health.