GSB

BCBS Prefix GSB

Highmark Blue Cross Blue Shield of Western New York

New York • HMO, Medicaid, POS

Billing essentials

Provider phone
(800) 547-3627
Electronic payer ID
SB430
Claims mailing address
P.O. Box 15013, Albany, NY 12212
Timely filing limit
90 daysCompare all plans
Prior authorization phone
(800) 547-3627

Coverage under prefix GSB

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.

Medicaid

Medicaid managed care under this BCBS prefix means the state has contracted with this plan to administer Medicaid benefits. Balance billing Medicaid members is prohibited. Timely filing requirements may follow state Medicaid rules rather than the plan's commercial deadlines. Contact the plan to confirm submission requirements.

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.

About Highmark Blue Cross Blue Shield of Western New York

Highmark Western and Northeastern New York Inc. providing commercial, Medicare and Medicaid plans in Western New York region.