Customer Service: Three Companies Serve You

Knowing who to call makes it easier to get the help you need.

Your Benefits Plan

Prime Customer Service: 877-234-5227
Prime EHP Website:
Prime provides authorization, coordinates referral and clinical care, and oversees
inpatient admissions. We also manage discharge planning, transfers, and clinical
disputes. Call anytime or email
For urgent clinical needs, call Prime Customer Service anytime at 877-234-5227.

Your Benefits Manager

Keenan Customer Service: 888-773-7218
Call Center Support M-F 6:00 am to 5:00 pm PST
Keenan oversees Member eligibility, issues benefit verification for Providers, claims, appeals, copay, co-insurance, deductible, EOB questions, Provider Finder assistance and coordinates requests for duplicate medical ID cards.

Keenan MESA 24/7 Online Access:
After access is granted, log in anytime to see claims status, benefit summary, and eligibility status or request a new ID card or printable EOBs. Sign up for access at

Your Pharmacy Benefits Manager

Member Contacts:

Customer service, home delivery: (866) 339-3731

Visit to register your account.

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OptumRx Specialty Pharmacy