Two of the most frustrating letters you can get from the healthcare system are a claim denial and an IRMAA notice. Both feel final. Neither is. Denials get overturned on appeal all the time — often because the original “no” was a paperwork problem, not a coverage problem. And an IRMAA surcharge based on income you no longer earn can be reduced if you know to ask. This article covers both, because the underlying lesson is the same: the first answer is not always the last answer.
Claims get denied for all kinds of fixable reasons: a billing code was entered wrong, a prior authorization wasn’t on file, documentation was missing, or the plan decided a service wasn’t medically necessary based on incomplete information. You have a formal right to appeal, and the process follows a predictable path:
It states exactly why the claim was denied, how to appeal, and your deadline. The deadline is real — don’t let it slide.
A letter of medical necessity or corrected records from your doctor’s office is often the single most persuasive piece of an appeal.
Ask the plan to reconsider, in writing, with your evidence attached. Many denials are reversed at this stage.
Still no? Higher appeal levels put the decision in front of reviewers who don’t work for your plan.
Keep copies of everything, note the date and name for every phone call, and don’t be discouraged by the first “no.” Persistence is genuinely rewarded in this process.
IRMAA — the Income-Related Monthly Adjustment Amount — is a surcharge that higher-income Medicare enrollees pay on top of their Part B and Part D premiums. For 2026, the standard Part B premium is $202.90 a month; IRMAA adds an extra amount above that for people whose income crosses certain thresholds. Here’s the catch: Social Security calculates it using older tax data. If your financial life has changed since then, you may be charged as if you still earn money you no longer make.
If a life-changing event lowered your income — retirement, reduced work hours, marriage, divorce, or the death of a spouse — you can ask Social Security to recalculate your IRMAA using your newer, lower income instead of the old tax return. This is a routine request with its own form, not a special favor, and it’s one of the most commonly missed money-savers in Medicare. Picture this: you retire in the spring, your income drops sharply, and yet your premium notice reflects your final full working year. File the request, and the surcharge can be adjusted to match your actual situation. Our guide to Medicare costs breaks down every piece of what you pay and why.
A few practices dramatically improve your odds. Put everything in writing, and keep copies — the denial notice, your appeal letter, every supporting document. Ask the plan to point to the exact policy language behind the denial; sometimes just requesting it prompts a second, more careful look. Loop in your doctor’s billing office early, since many denials are really coding disputes that they can fix with a corrected claim. If your situation is urgent — a treatment you need soon — say so clearly: faster review tracks exist for time-sensitive care. And you don’t have to do this alone: your State Health Insurance Assistance Program (SHIP) offers help with Medicare appeals at no added cost, and we’re glad to help you get organized before you file.
Picture this: a knee procedure gets denied as “not medically necessary.” Instead of paying or giving up, the patient asks her surgeon’s office to send the imaging and clinical notes the plan never saw, attaches them to a written appeal, and files before the deadline on her notice. The reviewer, now looking at a complete file, reverses the denial. Nothing about her condition changed — only the completeness of the paperwork did. That’s how a lot of appeals are won: not with arguments, but with documentation.
Whether it’s a denial you suspect is wrong or an IRMAA notice that doesn’t match your reality, don’t navigate it alone. Check our common questions, or call 561-339-0727 and we’ll help you figure out which lever to pull — for free.
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