W3X

BCBS Prefix W3X

Empire Blue Cross Blue Shield

New York • Medicaid, HMO, POS

Billing essentials

Provider phone
(800) 397-1630
Electronic payer ID
00803
Claims mailing address
P.O. Box 1407, Church Street Station, New York, NY 10008
Timely filing limit
90 daysCompare all plans
Prior authorization phone
(800) 397-1630

Coverage under prefix W3X

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

HMO coverage means this member must use providers within the plan's network. A primary care physician serves as the care coordinator and must authorize specialist referrals. Emergency services are the primary exception to the network requirement. Always verify referral status before providing non-emergency specialty care.

POS

This is a Point of Service (POS) prefix. POS plans offer flexibility similar to a PPO but incentivize in-network care through lower cost-sharing. Members designate a primary care physician who can issue referrals for the highest level of benefits. Out-of-network claims are covered but at significantly reduced rates.

About Empire Blue Cross Blue Shield

Part of the Blue Cross Blue Shield Association, serving New York members with commercial, Medicare and Medicaid plans.