EOCCO referrals & authorizations
Skip to main content

Referrals & authorizations

Learn which services need prior authorizations, which services are not covered, and which are not medically necessary.

New! Submit your prior authorization request electronically


EOCCO Medical Necessity Criteria


The following tools are EOCCO’s referral and authorization guidelines and instructions. They can help you understand prior authorization request requirements and other medical services that do not require authorization.

Clinical Practice Guidelines

Clinical Practice Guidelines Policy



Behavioral Health



Customer Service: 888-788-9821 (TTY users: 711)
Pharmacy Customer Service 888-474-8539
Hours: Monday through Friday, 7:30 a.m. to 5:30 p.m. PST

EOCCO members should have their member ID number ready for quicker help.

See more options