BCBS Prefix M6B

Anthem Blue Cross and Blue Shield of New Hampshire

New Hampshire • Medicare Advantage, POS, Medicaid

Billing essentials

Provider phone: (800) 676-2583
Electronic payer ID: 00770
Claims mailing address: P.O. Box 533, North Haven, CT 06473
Timely filing limit: 90 daysCompare all plans
Prior authorization phone: (800) 676-2583
Provider website: https://www.anthem.com/nh

Coverage under prefix M6B

Medicare Advantage

Medicare Advantage coverage under this prefix means the plan administers Medicare Part A and Part B benefits on behalf of CMS. These claims may have different processing rules than commercial claims, including different prior authorization requirements and appeal timelines. CMS timely filing rules (365 days) typically apply.

POS

POS coverage under this prefix operates on a tiered system. Tier 1 (in-network with referral) provides the highest coverage. Tier 2 (in-network without referral) provides moderate coverage. Tier 3 (out-of-network) provides the lowest coverage. Verify which tier applies before submitting the claim.

Medicaid

This prefix includes Medicaid managed care coverage. The BCBS plan administers Medicaid benefits on behalf of the state. Claims submission, prior authorization, and reimbursement rules may follow state Medicaid guidelines rather than the plan's standard commercial policies. Confirm the correct payer ID for Medicaid claims.