G8F

BCBS Prefix G8F

Blue Cross and Blue Shield of Montana

Montana • Medicare Advantage, High-Deductible Health Plan (HDHP), PPO

Billing essentials

Provider phone
(800) 447-7828
Electronic payer ID
MTBLS
Claims mailing address
P.O. Box 660, Billings, MT 59103
Timely filing limit
365 daysCompare all plans
Prior authorization phone
(800) 447-7828
Provider website
https://www.mtblue.com

Coverage under prefix G8F

Medicare Advantage

This prefix includes Medicare Advantage coverage. MA plans follow CMS guidelines for timely filing (365 days from date of service), which may differ from the commercial plan's deadline. The payer ID for Medicare Advantage claims may differ from the standard commercial payer ID. Verify before submitting.

HDHP

Under this HDHP prefix, the member's plan has a higher deductible than traditional coverage. This affects patient cost-sharing but does not change how claims are submitted or processed. Use the same payer ID, claims address, and filing procedures listed above. Verify the member's remaining deductible before estimating patient responsibility.

PPO

This prefix is associated with a PPO plan. Preferred Provider Organization coverage gives members flexibility to see specialists without referrals and to use out-of-network providers at higher cost-sharing. Claims can be submitted for both in-network and out-of-network services, though reimbursement rates differ.

About Blue Cross and Blue Shield of Montana

Independent licensee serving Montana members with commercial, Medicare and Medicaid plans.