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Contact us

Toll-free: 1-888-767-2222
TTY: 1-800-735-2922

Spanish: 1-888-662-7476
Vietnamese: 1-877-222-7401
Seniors: 1-877-466-6627
CalOptima: 1-888-656-7523

Mon.–Fri., 8:30 a.m.–5:00 p.m. local time
Holiday hours may vary.

After hours, please leave a message. We'll return your call the next business day.

If you prefer the U.S. mail, you can write to us at:

Optum Care Network
ATTN: Customer Service
Mail Stop 16
11 Technology Drive
Irvine, CA 92618

Connecting with you so you understand your care is important. We have services such as letters in other languages, large print and sign language interpreters. Ask for these free services if you feel you need them.  

If you are sight impaired, we will talk through any written material.