IMK

BCBS Prefix IMK

Anthem Blue Cross and Blue Shield of Maine

Maine • Medicare Advantage, Medicaid, HMO

Billing essentials

Provider phone
(800) 676-2583
Electronic payer ID
00070
Claims mailing address
P.O. Box 533, North Haven, CT 06473-4201
Timely filing limit
90 daysCompare all plans
Prior authorization phone
(800) 676-2583

Coverage under prefix IMK

Medicare Advantage

Medicare Advantage (MA) coverage means this member receives their Medicare benefits through a private BCBS plan rather than through original Medicare. MA plans may have different payer IDs and claims addresses than the commercial plan. Check with the payer to confirm the correct submission details for Medicare Advantage claims.

Medicaid

This prefix is associated with Medicaid managed care. When a BCBS plan administers Medicaid, the claims process may differ from commercial coverage: different payer ID, different claims address, different prior authorization rules, and different timely filing limits. Always verify Medicaid-specific details before submitting.

HMO

This is a Health Maintenance Organization (HMO) prefix. HMO plans have stricter routing requirements than PPO plans. Members select a PCP who manages their care and issues referrals. Claims for specialist services should include the referral number. Out-of-network claims will typically be denied unless emergency criteria are met.

About Anthem Blue Cross and Blue Shield of Maine

Independent licensee of the Blue Cross Blue Shield Association providing coverage in Maine.