Humana Medicare Advantage Denial Appeal: What to Know
How to appeal a Humana Medicare Advantage denial: filing window, where to submit, and what to include, from someone who worked inside Humana’s Medicare operations.
By Boris Sorto, Healthcare Advocate · Updated August 26, 2026
To appeal a Humana Medicare Advantage denial, you generally have 65 days from the date on the denial notice to request a reconsideration. Boris Sorto, who previously worked inside Humana’s Medicare operations, put together this guide to the specific documentation and filing details that matter for a Humana appeal.
Filing window
The 65-day window starts from the date printed on your denial notice, not the date you happened to open the letter. If your situation is urgent (for example, a denial that delays treatment you need soon), ask specifically for an expedited review, which carries a much shorter decision timeline.
Where to file
Your specific denial notice will list the exact submission address, fax number, or portal for your plan. Many Humana provider-facing appeals move through the Availity portal, while member-submitted appeals are typically mailed or faxed directly to the address on the notice. Always follow the instructions on your specific letter over any general guidance, since submission channels can differ by plan type.
What to include
- A copy of the denial notice itself
- A clear, written statement addressing the specific reason for denial
- Supporting medical documentation from your provider
- Any prior authorization numbers or reference numbers from the original request
Want help preparing a Humana appeal specifically? Our Claim & Appeal Support service is built around exactly this kind of case.
Frequently asked questions
How long do I have to appeal a Humana Medicare Advantage denial?
Generally 65 days from the date on your denial notice. The exact deadline is printed on the notice itself, so treat that date as authoritative over any general rule.
Can I submit a Humana appeal online?
Humana offers submission through its provider and member portals (Availity for many providers), by mail, and by fax. The denial notice specifies which options apply to your particular case.
Written by Boris Sorto
Bilingual Healthcare Advocate, formerly with Humana’s Medicare operations. More about Boris →