Medicare Advantage Denied His Cancer Scan. His Appeal Won.
After prostate cancer treatment, his PSA kept rising. Medicare Advantage called the scan unnecessary, leaving him to document why waiting mattered.
Daniel ReyesNarrator, Navigating CareAugust 8, 2026 · 8 min read

The denial appeared in the insurance portal in April 2024. The scan was not medically necessary, it said.
The man at the center of this composite story was 71 and enrolled in a Medicare Advantage plan. Eighteen months earlier, he had completed treatment for prostate cancer. His PSA had initially dropped, then appeared again on a lab report and rose across three tests over eight months.
His oncology team ordered a PSMA PET scan, advanced imaging used in some prostate cancer cases to look for cancer cells in the body. They were trying to find out where the rising PSA was coming from before settling on the next treatment plan.
The insurer said no.
He started a notebook that afternoon. The first entry recorded the month, the denial and the number on the back of his insurance card. Over the next 27 days, that notebook became the most reliable account of a process in which the insurer, the imaging office and the oncology team each seemed to have a different version of what had been sent.
That is the maddening part of prior authorization. The patient receives a definite answer, but the reason behind it may depend on an incomplete packet, a coverage rule nobody has explained or a clinical connection that the insurer says was not documented clearly enough.
What the denial was hiding
“Not medically necessary” sounds like a medical conclusion. In this case, it was an insurance decision based on the records available to the plan and its interpretation of its coverage criteria. The phrase did not mean his doctors had changed their minds. It did not mean the PSA had stopped rising.
It meant the insurer had not accepted the case presented in the initial request.
The denial notice described a right to appeal, along with separate paths for a standard or faster decision. Medicare Advantage calls the first plan decision an organization determination. The next review is a reconsideration. Those terms make the process sound orderly.
From the patient’s side, it felt more like being asked to prove that the request already submitted was the request his doctor intended to submit.
His notebook shows why. The imaging office said it had received the order but not approval. The insurer said the request lacked enough clinical support. The oncology office believed it had supplied the relevant notes.
None of those statements resolved the denial.
Two days after opening the notebook, he requested copies of what the plan had reviewed. That step exposed the consequential gap: the packet contained a recent oncology note, but the full sequence of PSA results was not presented together, and the treatment history was scattered across records from different parts of the hospital system.
A reviewer could see individual facts. The reviewer could not easily see the story those facts made.
The appeal reorganized that story. The oncology team submitted a concise clinical explanation linking his prior treatment to the rising PSA and describing how the scan result would affect the next treatment decision. The office also gathered the lab trend into one readable sequence rather than leaving the numbers buried across separate reports.
There were no magic words. There was a clearer chain of information.
The appeal clock started, but waiting did not feel passive
His oncology team asked for a faster review because it considered the scan time-sensitive. Medicare says an expedited Medicare Advantage appeal generally must be decided within 72 hours when waiting for the standard timeline could seriously jeopardize a person’s health or ability to regain maximum function. A standard pre-service appeal generally allows the plan up to 30 calendar days.
The plan kept his case on the standard track.
That did not mean nothing happened for 30 days. It meant he had no reliable way to know which action mattered while the clock ran. He checked the portal, called the plan and recorded each result in the notebook, often finding that an entry described movement without progress: records received, review pending, no final determination.
One call mattered. A plan representative said an additional treatment record had been requested. His oncology office had no record of that request, so he relayed the issue and asked both sides to confirm what was missing. The office resent the relevant material through its usual channel.
He wrote down that it had been sent, then confirmed several days later that the plan showed it as received.
This was clerical work performed under the threat of cancer recurrence. The distinction is important. Insurance systems often treat a missing record as a neutral administrative defect, but the patient experiences it while wondering whether cancer is growing and whether a treatment window is narrowing, even when nobody has told him that either outcome is occurring.
He stopped making plans beyond the next week. He kept his phone nearby in case the oncology office or insurer called, though most updates still arrived through the portal. Sleep became uneven. His family tried to limit how often they discussed the appeal, which meant they discussed the silence around it instead.
The notebook filled with repeated phrases: under review, records received, decision pending. Those entries did not calm him. They did prevent him from starting over during every call.
Denials often survive because few people appeal
His experience fits a broader Medicare Advantage pattern. According to a KFF analysis of federal data, insurers handled nearly 50 million prior authorization requests in 2023 and denied 3.2 million of them. Only 11.
7% of denials were appealed. Among the denials that were appealed, 81.7% were overturned.
Those numbers do not show whether any particular scan should be covered. They do show that the first answer is often not the last one, even though most denied patients never reach a second answer.
A 2022 federal watchdog report found another problem. The Department of Health and Human Services Office of Inspector General reviewed a sample of Medicare Advantage denials and estimated that 13% of denied prior authorization requests met Medicare coverage rules and would likely have been approved under traditional Medicare. Some denials involved insufficient documentation, while others reflected plan criteria that went beyond Medicare rules.
That is what bureaucratic language can hide. A denial may look like a verdict on the patient’s need, although the dispute is sometimes about which records reached the reviewer or which coverage standard the plan applied.
For him, the $6,400 self-pay estimate made waiting feel less like a choice. He could not comfortably pay that amount, and scheduling the scan without authorization could have left him responsible for the charge. The estimate went into the notebook beside the appeal status, two separate facts that together explained why he remained stuck.
The record finally matched the medical question
On day 24, the portal changed from pending to approved. The written notice arrived three days later.
The approval did not say the first denial had been a mistake. Insurers rarely narrate their reversals that way. It said the requested imaging had been authorized after review of the additional information.
Plain English: the fuller record worked.
The scan took place the following week. It identified a small suspicious area near the pelvis, giving the oncology team a target to consider as it planned what came next. The result did not erase the month spent waiting, and it did not settle every medical question. It located the problem his doctors had been trying to see.
His notebook stayed on the table through the follow-up visit. The last appeal entry recorded the approval and the scheduled scan, without celebration. By then, approval felt less like a win than the removal of an obstacle that should not have required 27 days of his attention.
What worked in his case was narrow and specific: the oncology team put the complete PSA trend in one place, explained why the imaging result would affect treatment and resubmitted a record the insurer said it lacked. His phone log made it possible to identify that missing step without relying on memory.
Questions people ask
What does
“not medically necessary” mean on a Medicare Advantage denial?
In this case, it meant the insurer did not believe the submitted record met its coverage criteria. It was not a new medical opinion from his oncology team. The appeal succeeded after the plan received a clearer account of his treatment history, rising PSA and the decision the scan was intended to inform.
How long can a Medicare Advantage appeal take?
Medicare generally gives a plan up to 30 calendar days for a standard appeal involving a service the person has not yet received. An expedited appeal generally has a 72-hour deadline when the plan accepts that waiting could seriously jeopardize health or recovery. His request remained standard, and approval came after 24 days.
What records changed the outcome of his scan denial?
The appeal brought his PSA results into one sequence and connected them to his previous prostate cancer treatment. His oncology team also explained how locating the suspected recurrence could affect the next treatment plan. The plan approved the scan after receiving that fuller record and a resent treatment document.
What happened after the scan was approved?
The scan was scheduled for the following week and identified a suspicious area that the oncology team could consider during treatment planning. Approval did not resolve every question, but it ended the insurance delay. The final notebook entry recorded the authorization and the scan date.
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