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.