Your deadlines, explained
Checked against the current rules on September 23, 2026.
There are two clocks running on a Medicare Part D denial: your deadline to file, and the plan's own deadline to answer once you have. Missing either one changes what happens next — but neither one is as unforgiving as it might feel in the moment.
Here's exactly how each one is calculated, and why Part D genuinely runs on two different speeds at once — your own filing clock in days, and the plan's own decision clock in hours.
Your deadline to file
65 days from the date on the denial notice. The rule (42 CFR § 423.582) gives you 60 days from when you receive the denial, and receipt is presumed to be 5 days after the notice's own date unless shown otherwise — 60 + 5 = 65 days from the notice date.42 CFR 423.582
Later levels have their own 60-day deadlines, measured from the decision notice at that level rather than the original denial — see the six appeal levels for each one.
The 5-day mailing presumption isn't a formality — it exists specifically because the regulation assumes you didn't get the notice the same day it was printed. If you can show you actually received it later than that, the clock can start from the real receipt date instead.
The plan's own clock to decide
72 hours for a standard drug-benefit request (24 hours if expedited). For an exception request, the clock instead runs from receipt of your prescriber's supporting statement — 72 hours standard / 24 hours expedited from that point, or from the end of a 14-day wait if the plan never receives one. Payment requests: 14 calendar days (42 CFR § 423.568, § 423.570, § 423.572).
If the plan misses its own deadline, that silence is legally treated as a denial, and the plan must forward the case to the Independent Review Entity automatically — you don't have to do anything to trigger it. Unlike a missed deadline, a real, on-time decision that upholds the denial does NOT forward itself; you have to request the next review yourself.42 CFR 423.590
The specific number of hours or days depends on what kind of request it is: a standard drug request, a payment request for something already purchased, or an exceptions request, whose own clock doesn't even start until your prescriber's supporting statement arrives.
Expedited (fast) review
You or your prescriber can ask the plan to expedite its decision if waiting the standard timeframe could seriously jeopardize your life, health, or ability to regain maximum function (42 CFR § 423.570).42 CFR 423.570
Expedited review isn't automatic just because a family feels urgency — it turns on a specific standard about health risk. Either you or the treating doctor can request it, and a doctor's own request for expedited handling is generally treated as establishing that the standard is met.
Questions people ask
- What date does my 65-day deadline actually start from?
- The date printed on the denial notice — not the date you opened the envelope or noticed it. The extra 5 days beyond the regulation's 60-day window already account for mail transit.
- Can I ask for more time?
- The first-level deadline can be extended for good cause. There's no guaranteed list of what qualifies — a serious illness, a family emergency, or not having received the notice are all reasonable explanations.
Sources — last checked September 23, 2026
- 42 CFR 423.570as of September 23, 2026
- 42 CFR 423.582as of September 23, 2026
- 42 CFR 423.590as of September 23, 2026
Related
Not sure what applies to your case?
Upload your denial letter and get a free, plain-language explanation with your real deadline.
By CaseWhy Appeals editorial. See how this content is produced. Not legal advice. Not affiliated with or endorsed by Medicare, CMS, or any health plan. A product of CaseWhy LLC.
