M5I

BCBS Prefix M5I

Anthem Blue Cross

California • High-Deductible Health Plan (HDHP), Medicare Advantage, EPO

Billing essentials

Provider phone
(855) 871-4899
Electronic payer ID
47198
Claims mailing address
P.O. Box 60007, Los Angeles, CA 90060
Timely filing limit
90 daysCompare all plans
Prior authorization phone
(888) 831-2246

Coverage under prefix M5I

HDHP

Under this HDHP prefix, the member's plan has a higher deductible than traditional coverage. This affects patient cost-sharing but does not change how claims are submitted or processed. Use the same payer ID, claims address, and filing procedures listed above. Verify the member's remaining deductible before estimating patient responsibility.

Medicare Advantage

This prefix includes Medicare Advantage coverage. MA plans follow CMS guidelines for timely filing (365 days from date of service), which may differ from the commercial plan's deadline. The payer ID for Medicare Advantage claims may differ from the standard commercial payer ID. Verify before submitting.

EPO

EPO (Exclusive Provider Organization) plans require members to use in-network providers, similar to an HMO. The key difference is that referrals are usually not required to see a specialist. Out-of-network care is not covered except in emergency situations. Submit claims to the payer listed above.

About Anthem Blue Cross

Health insurance provider offering Medicare, Medicaid, commercial, dental and vision plans to over 8 million California members. Independent licensee of the Blue Cross Association founded in 1937.