Your Medicare Part D Plan May Not Exist in 2027: What a Non-Renewal Notice Means for Houston Beneficiaries

Most fall mail from a Medicare drug plan is routine. One envelope is not. If a letter arrives this October telling you that your stand-alone Medicare Part D prescription drug plan will not be offered in 2027, that is a plan non-renewal notice — and it is the one piece of Medicare mail you cannot set aside until January. It does not mean you did anything wrong. It does not mean you lose Medicare. It means your drug coverage has a scheduled end date of December 31, 2026, and the calendar between now and then belongs to you.

This is happening against a real backdrop. The stand-alone Prescription Drug Plan market — the plans people in Original Medicare buy separately to cover their pills — has been contracting. Per KFF’s tracking, stand-alone PDPs offered nationwide fell from 709 in 2024 to 464 in 2025 to 360 for 2026 — a 22% drop in one year, across just 17 parent organizations. Some plans still standing in 2026 will not be back in 2027.

The reassuring part is that federal rules build a runway for exactly this situation: a required notice with a legal deadline, a Special Enrollment Period that extends past December 31, and an automatic safety net for people with Extra Help. What follows is all of it, dated, in the order the mail actually arrives — written for Harris County and the counties around it.

What a Part D non-renewal notice actually is

Every Medicare drug plan is offered under a contract between a private insurance company and the federal government, and that contract runs for a calendar year. Federal regulation gives the company a clean exit. Under 42 CFR 423.507, a Part D plan sponsor “may elect not to renew its contract with CMS, effective at the end of the term of the contract for any reason,” provided it hits two deadlines. It must notify CMS in writing by the first Monday of June of the year the contract ends. And it must notify “each Medicare enrollee by mail at least 90 calendar days before the date on which the nonrenewal is effective.”

Read that second deadline carefully, because it is the whole reason you have time. A non-renewal effective January 1, 2027 must be in the mail to you by early October 2026. CMS’s guide to consumer mailings put the equivalent deadline for the prior plan year plainly: “By October 2, people whose current plan is leaving Medicare next year will get notices from plans.” No plan may simply stop covering you and let you find out at the counter.

The rule also requires the sponsor to help you land somewhere. Along with the notice it must either provide a CMS-approved written description of the alternative Medicare Advantage and Part D options in your region, or place outbound calls to affected enrollees.

Three different ways a plan can end — and they are not the same

The word “termination” gets used loosely in Medicare mail, but CMS treats three situations differently, and each produces a different enrollment window. Non-renewal — the situation this article is about — is the clean January 1 version.

Source: CMS, CY 2026 Medicare Advantage and Part D Enrollment and Disenrollment Guidance, §30.6.10.

That last row matters more than it looks. If your insurer is merging your plan into a sibling plan rather than leaving Medicare, you are moved automatically and you do not get the December-to-February window. The letter says which one is happening; if the language is ambiguous, have someone read it with you before assuming you have until February.

Non-renewal notice vs. ANOC vs. reassignment notice

Three envelopes show up in a Houston mailbox each fall, from different senders on different deadlines. People mix them up constantly.

The Annual Notice of Change (ANOC) is the routine one. Under 42 CFR 423.128(g)(2), a sponsor changing its rules for the coming January must notify enrollees “at least 15 days before the beginning of the Annual Coordinated Election Period.” That period opens October 15, so the ANOC deadline is September 30. An ANOC describes next year’s premium, deductible, formulary and network for a plan that is coming back.

The non-renewal notice is the exception. It comes from the same company, roughly two weeks later, and says the opposite: the plan is not coming back at all. The reassignment notice comes from CMS instead, in November, on blue paper, and only if you have Extra Help.

Sources: 42 CFR 423.128(g); 42 CFR 423.507(a)(2); CMS, Guide to consumer mailings from CMS, Social Security, and plans.

What happens on January 1 if you do nothing

If you do not have Extra Help and take no action, CMS guidance is direct: plans “are required to disenroll an individual if the plan’s contract is terminated, discontinued, or if the service area is reduced.” Your coverage ends December 31, 2026. On January 1 you still have Part A and Part B and you still have your doctors — but no drug plan. At the pharmacy on Bellaire Boulevard, or in Kingwood, or in Pearland, you pay the full cash price.

If you do have Extra Help (the Part D Low-Income Subsidy), an automatic net catches you: CMS reassigns you to another drug plan effective January 1, covered in the next section.

There is a second cost to a gap, and it is the one people discover a year later. Under 42 CFR 423.46, a Part D late enrollment penalty applies if you go 63 days or more without Part D and without other creditable prescription drug coverage. “Creditable” coverage pays, on average, at least as much as standard Medicare drug coverage; CMS names some employer and union retiree plans, the Federal Employees Health Benefits Program, qualified State Pharmaceutical Assistance Programs, and military coverage such as VA or TRICARE.

The math is set by 42 CFR 423.286(d)(3) and CMS’s Chapter 4 guidance: 1 percent of the national base beneficiary premium for each full uncovered month, rounded to the nearest 10 cents, recalculated yearly. With the 2027 base beneficiary premium at $41.33, one uncovered month adds about 41 cents a month; twelve would come to roughly $4.96, rounded to $5.00. CMS states plainly that “with limited exceptions (for example, beneficiaries who are receiving ‘extra help’ from Medicare), the Part D LEP remains with the beneficiary for as long as he/she has Medicare prescription drug coverage.”

If you are unsure whether coverage you already have counts as creditable — an employer retiree drug plan, for example — settle that before December, not after. Reach us through our contact page, or start with our Medicare overview.

The Special Enrollment Period, and exactly how long it lasts

This is the rule people most often get wrong. The Special Enrollment Period is authorized by 42 CFR 423.38(c)(6), which covers a sponsor’s contract being terminated “or the PDP plan is no longer offered in the area when the individual resides.” The regulation authorizes the window but does not print the dates. The dates live in the CMS CY 2026 Medicare Advantage and Part D Enrollment and Disenrollment Guidance, and for a January 1 non-renewal they are unambiguous:

So yes, the window runs past December 31 — and yes, waiting costs you. A February election does not backfill January; it starts coverage March 1, leaving two months at the pharmacy with no plan behind you and two uncovered months counting toward a penalty.

You also still have the ordinary Annual Enrollment Period, October 15 through December 7, under 42 CFR 423.38(b)(3). For most people facing a non-renewal the clean move is to use that window and treat December-through-February purely as a safety margin. The Special Enrollment Period is a backstop, not a strategy.

And if you move to a Medicare Advantage plan with drug coverage and change your mind, 42 CFR 422.62(a)(3) gives you one election during the Medicare Advantage Open Enrollment Period, January 1 through March 31. Our pages on Medicare Advantage and Medicare Supplement plans lay out that trade-off.

If you have Extra Help: automatic reassignment and its blind spot

Millions of people with Medicare drug coverage qualify for the Part D Low-Income Subsidy, better known as Extra Help; KFF put the count at 13.9 million as of May 2025. For them, a non-renewal plays out very differently. 42 CFR 423.34 obligates CMS to keep subsidy-eligible individuals from falling out of Part D, and paragraph (c)(1) authorizes CMS to reassign them into another drug plan during the annual election period. CMS runs the process in late October and mails the results on blue paper in November.

For a non-renewing drug plan the sweep is total. CMS guidance says it reassigns “all current LIS enrollees who continue to have LIS in the following year, regardless of premium subsidy amount, and regardless of whether the individual was assigned to or voluntarily enrolled in a plan.” That last clause is the surprising one: even if you shopped carefully and chose this plan yourself, a non-renewal puts you back into the automatic pool.

How CMS picks your new plan

The selection logic is about premium, not pharmacy. CMS looks for another qualifying plan under the same contract number, then under a different contract number run by the same parent organization, distributing people randomly at each step. A “qualifying” plan has a basic benefit and a premium at or below the regional low-income premium subsidy amount, so you owe nothing for the premium.

Notice what is not in that logic: your medications. CMS is matching a premium against a benchmark, not your blood thinner or your insulin against a formulary.

CMS does not leave you blind, though. Under section 1860D-14(d) of the Social Security Act, CMS also sends reassigned individuals information on formulary differences between the old and new plan with respect to their own drug regimen, plus their appeal and exception rights. That is the second blue notice (Product No. 11496), and it lists the Part D drugs you actually filled this year alongside what the new plan will cover. Do not file it away — it is a personalized formulary check, done for you.

Sources: 42 CFR 423.34; CMS, CY 2026 MA and Part D Enrollment and Disenrollment Guidance, §40.1.9; CMS de minimis memo, July 28, 2026.

Two more things. You are never stuck with the assignment: 42 CFR 423.34(e) preserves your right to disenroll and elect a different plan, and 42 CFR 423.38(c)(4) gives most subsidy-eligible individuals a one-time-per-month election into a drug plan. And Extra Help exempts you from the late enrollment penalty. If you think you might qualify and have never applied, our Medicare and Medicaid comparison page is a good place to start.

The 2027 Part D numbers to compare against

When you sit down with a replacement plan, you are comparing it against a standard benefit whose 2027 numbers are already locked in. CMS published them in the Announcement of Calendar Year 2027 Medicare Advantage Capitation Rates and Part C and Part D Payment Policies and released the premium-related figures in its July 28, 2026 Part D bid information fact sheet.

Source: CMS, CY 2027 Rate Announcement, Attachment V, Table V-2; CMS Parts C & D bid information memo, July 28, 2026.

One structural point carries over from the Inflation Reduction Act redesign: there is no longer a coverage gap phase, and once you reach the annual out-of-pocket threshold you pay nothing more for covered Part D drugs that year. The $2,400 figure for 2027 is a genuine ceiling, not a milestone on the way to another phase.

Why the stand-alone drug plan market keeps shrinking

Non-renewals are not random bad luck. They are the visible edge of a market that has been consolidating for several years.

Three forces push in the same direction. The Inflation Reduction Act redesign shifted a much larger share of catastrophic drug costs onto plans starting in 2025, making stand-alone plans harder to price. The statutory 6% annual cap limits how much of that cost can flow through the basic premium. And enrollment keeps migrating toward Medicare Advantage plans that bundle drug coverage.

To cushion the transition, CMS ran a voluntary Part D Premium Stabilization Demonstration for stand-alone plans: in 2025, a monthly premium subsidy of up to $15, a $35 cap on premium increases, and narrowed risk corridors. For 2026 CMS cut the subsidy to $10, raised the cap to $50, and dropped the risk corridors.

For 2027, the demonstration ends. In its July 28, 2026 announcement, CMS wrote that its analysis of the bids submitted “indicates that Part D plan sponsors had sufficient experience under the redesigned Part D benefit to support their assumptions in developing prescription drug plan (PDP) bids. Therefore, CMS will discontinue the demonstration at the end of CY 2026 to return the program to operating under traditional market conditions in CY 2027.”

Which brings up a limit on what anyone can tell you today. As of late August 2026, CMS has not published plan-level 2027 Part D data. In the same July 28 fact sheet CMS said: “As in past years, CMS will release the 2027 MA and Part D landscape in mid-to-late September, once all offerings are finalized.” Until that lands, no agent, website or mailer can legitimately tell you what your 2027 options cost. Wait for the landscape and the notices, then compare.

Houston and Harris County by the numbers

Harris County is one of the largest Medicare markets in the country, and it is unusual in a way that matters here.

The CMS Medicare Advantage State/County Penetration file for August 2026 shows Harris County with 664,734 Medicare eligibles, of whom 409,243 are in a Medicare Advantage plan — a penetration rate of 61.56%. Houston has been a Medicare Advantage market for years. But the stand-alone drug plan population is still very large in absolute terms: the companion CMS PDP file for August 2026 counts 195,804 Harris County residents in a stand-alone Part D plan, nearly 30% of everyone eligible for Medicare in the county. Every one of them is exposed to a non-renewal notice this fall.

A few more numbers that frame the local picture:

• 567,148 Harris County residents are age 65 or older, 11.7% of a population of 4,838,303, per the Census Bureau’s American Community Survey 5-Year Estimates for 2020–2024, table S0101. Medicare enrollment here is larger than that, because it also covers people under 65 who qualify through disability or end-stage renal disease.
• Texas had 12 stand-alone Medicare prescription drug plans for 2026, down from 17 for 2025, according to the CMS state-by-state Open Enrollment fact sheets. That is not many choices when one of them leaves.
• 24.14% of Texans in a stand-alone drug plan receive Extra Help, per the same CMS Texas fact sheet. If the local share tracks the state, roughly one in four Harris County PDP enrollees would go through automatic reassignment rather than making their own choice.
• Harris County residents had 114 Medicare Advantage and related contract-plan options for 2026 in the CMS CY2026 Landscape file. There is no shortage of coverage in Houston — only a shortage of time to sort through it.

North of the loop, see our North Houston Medicare page; closer to Pearland, Clear Lake or the Medical Center, our South Houston page.

Your dated action plan

Here is the whole season on one page, from the notice arriving through the last day of the Special Enrollment Period.

Sources: 42 CFR 423.128(g)(2); 42 CFR 423.507(a)(2)(ii); 42 CFR 423.38(b)(3) and (c)(6); CMS, CY 2026 MA and Part D Enrollment and Disenrollment Guidance, §§30.6.10 and 40.1.9; CMS, Guide to consumer mailings; CMS, CY 2027 Rate Announcement, Attachment V.

Five mistakes worth avoiding

• Assuming the Special Enrollment Period buys you January. It buys the right to enroll in January and February, but coverage starts the first of the following month. Only elections made by December 31 avoid a gap.
• Reading only the premium. Every fall someone in Houston moves to a plan with a lower monthly premium and a formulary that omits the one medication they actually need. Match the drug list first.
• Assuming reassignment means “handled.” With Extra Help, CMS keeps you covered — but the assignment is made on premium, not on your prescriptions. The blue formulary notice exists precisely because the fit is not automatic.
• Mistaking a consolidation for a non-renewal. If your plan is folded into a sibling plan from the same company, you are moved automatically and do not get the December-to-February window.
• Acting on 2027 plan numbers before CMS publishes them. Plan-level 2027 pricing does not exist publicly until the CMS landscape release in mid-to-late September 2026.

You can also email sara@wisehealthins.com. To read up first, our Medicare plans overview and Medicare eligibility guide cover the fundamentals, and our health insurance page covers family members not yet on Medicare.

Frequently asked questions

The short version

A non-renewal notice is a deadline, not an emergency. Your plan must tell you at least 90 days ahead. You have October 15 through December 7 to make a clean switch, and December 8 through February 28 as a backstop. Extra Help will not let you go uncovered — but it will not check your drug list for you either. The 2027 standard numbers are final: a $700 maximum deductible and a $2,400 out-of-pocket ceiling. Plan-level detail arrives with the CMS landscape in mid-to-late September.

Between now and then, the most useful thing you can do is boring and concrete: write down every medication you take, the dose, and your pharmacy. That one page is what makes a real comparison possible the moment the 2027 data lands.

This article is for general educational purposes only and is not legal, tax, or medical advice. Plan availability, premiums, formularies and cost sharing vary by plan and by county and can change. Wise Insurance Agency is a licensed insurance agency in the State of Texas, independent and not affiliated with or endorsed by the federal Medicare program. We do not offer every plan available in your area. Any information we provide is limited to those plans we do offer in your area. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Assistance Program (SHIP) to get information on all of your options.