G3B

BCBS Prefix G3B

Highmark Blue Cross Blue Shield

New York • EPO, Medicare Advantage, HMO

Billing essentials

Provider phone
(866) 763-3224
Electronic payer ID
03036
Claims mailing address
P.O. Box 890089, Camp Hill, PA 17089-0089
Timely filing limit
365 daysCompare all plans
Prior authorization phone
(866) 763-3224

Coverage under prefix G3B

EPO

This prefix is associated with an EPO plan. Exclusive Provider Organization coverage combines elements of HMO and PPO plans: members must stay in-network like an HMO, but can self-refer to specialists like a PPO. Out-of-network services are not covered except for emergencies.

Medicare Advantage

Under this prefix, the member may have Medicare Advantage coverage administered by this BCBS plan. MA claims are subject to CMS regulations in addition to the plan's own policies. Balance billing restrictions apply. Verify the member's specific MA plan details and confirm the correct payer ID for electronic submission.

HMO

This prefix is linked to an HMO plan. Health Maintenance Organization coverage requires members to use in-network providers and coordinate care through a designated primary care physician. Referrals are typically required for specialist visits. Claims submitted without proper referral documentation may be denied.

About Highmark Blue Cross Blue Shield

Highmark Inc. providing commercial, Medicare and Medicaid plans in Pennsylvania.