NNU

BCBS Prefix NNU

Highmark Blue Cross Blue Shield

New York • HMO, Medicare Advantage, Medicaid

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 NNU

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.

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.

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.

About Highmark Blue Cross Blue Shield

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