Click here to check for your perks and discounts!

Member Support

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

Express Scripts Customer Service: 866-718-7955,
TDD 800-899-2114
Administers our prescription drug plan.

EHP Customer Service Topics and Contacts

Confirm or change your PCP, Non-HIPAA
related questions
Prime Customer Service
Referral status, urgent services, eligibility Prime Customer Service or 877-234-5227
Benefit-related questions Benefits
Urgent referral status, discharge planning,
and hospital transfers
Utilization Management
Tier 1 Provider contracts and directory Bhavya Manugunta
Prime Authorization Service (PAS) tool Bhavya Manugunta
Member eligibility, copay, co-insurance,
deductible, EOB questions, benefits fax
back for Providers
Keenan Customer Service 888-773-7218
Appeals Keenan Customer Service Phone: 310-533-5755, Fax: 888-773-7218
Pharmacy benefit questions and appeals Express Scripts Customer Service 866-718-7955, TDD 800-899-2114