Out-of-network provider
Out-of-network denial appeal letter
OON denials where care was emergent, no in-network provider was available, or a network gap exception applies.
Use this letter to formally appeal a "out-of-network provider" denial. Replace every {{PLACEHOLDER}} with your own facts, attach the listed evidence, and send it certified mail plus by the insurer's online portal.
Template
{{MEMBER_NAME}}
{{MEMBER_ADDRESS}}
{{MEMBER_PHONE}}
Member ID: {{MEMBER_ID}}
Claim / Reference #: {{CLAIM_NUMBER}}
Date of Service: {{DATE_OF_SERVICE}}
Date of Denial Notice: {{DENIAL_DATE}}
{{INSURER_NAME}}
Appeals and Grievances Department
{{INSURER_APPEAL_ADDRESS}}
Re: Formal Internal Appeal — {{CLAIM_NUMBER}}
I am appealing the denial of {{SERVICE_OR_DRUG}} on the basis that the provider was out-of-network.
1. {{OON_FACT_PATTERN}} — either (a) the service was emergency care protected under the No Surprises Act and must be paid at in-network cost-sharing, (b) no in-network provider with the required specialty was reasonably available within {{DISTANCE_OR_WAIT}}, or (c) I had established continuity of care with this provider prior to a network change.
2. Attached is documentation supporting the fact pattern above, including the emergency ED note / referral / continuity-of-care record.
Please reprocess this claim at the in-network benefit level under the No Surprises Act and/or the plan's network gap exception rules.
Sincerely,
{{MEMBER_NAME}}Key points before you send it
- If the care was emergency, invoke No Surprises Act protections (in-network cost-sharing).
- If no in-network specialist was reasonably available, request a network gap / continuity-of-care exception.
Want this pre-filled with your denial details?
Upload your letter — we'll parse it and generate this template with your facts, dates, and clinical evidence already in place.
Not legal or medical advice. This page is a self-help resource. You make your own decisions. Strip personal identifiers (name, date of birth, address, member ID) from any document before uploading or sharing. The information here summarizes commonly-published payer policies and federal rules; confirm against your specific plan document and the current denial letter before acting.