XHG

BCBS Prefix XHG

Highmark Blue Cross Blue Shield Delaware

Delaware • Medicare Advantage, HMO, POS

Billing essentials

Provider phone
(800) 452-8507
Electronic payer ID
58379
Claims mailing address
P.O. Box 1991, Wilmington, DE 19801-1368
Timely filing limit
180 daysCompare all plans
Prior authorization phone
(800) 452-8507
Provider website
https://www.highmark.com

Coverage under prefix XHG

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.

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 Highmark Blue Cross Blue Shield Delaware

Independent licensee of the Blue Cross Blue Shield Association providing coverage in Delaware.