UnitedHealthcare is ending some of its 2027 Medicare Advantage plans in parts of the country, and members of those plans who take no action will be moved to Original Medicare on January 1, 2027. If the discontinued plan included prescription drug coverage, that coverage ends with it. The company’s own document says so in plain terms.
Two parts of The 2027 Medicare Open Enrollment Decision Kit fit this notice: a cost calculator spreadsheet that compares plans on cost, drugs and doctors, and Medigap guaranteed-issue rights with a call script.
Open the plan cost calculator and the Medigap call script →
What UnitedHealthcare’s service-area FAQ says happens by default
The statement comes from a UnitedHealthcare provider FAQ on 2027 Medicare Advantage service-area reductions, document number PCA-1-26-01592-M&R-FAQ_09082026, dated September 8, 2026. It says non-renewal notices dated October 2, 2026 go to affected members, and it states: “If they do not enroll, they will automatically return to Original Medicare on Jan. 1, 2027.” On drug coverage, it adds: “If an affected member’s discontinued plan included prescription drug coverage, they’ll also lose Part D benefits in 2027.”
Two details in that wording carry the weight. The default is automatic, so no form or phone call is needed for the move to Original Medicare to happen, and the move is the outcome of inaction rather than a choice. And the Part D loss is tied to the plan: a member whose discontinued plan bundled drug coverage loses it, while the FAQ says nothing about members whose plan carried none.
Which members and counties are affected
The FAQ is deliberately general. It says the changes “impact various UnitedHealthcare Medicare Advantage plans, and the specific plans affected can vary by state and county.” No plans are named in it, no counties are listed, and the document does not say how many members are affected. The FAQ is also absent from the news index on UnitedHealthcare’s provider site, and no companion county roster could be located.
That leaves the individual notice as the working record. A member who received a letter dated October 2 knows the plan is ending. A member who did not should not read the silence as a clean bill of health, but the sources read for this piece do not allow more to be said about any particular county.
UnitedHealth Group’s own consumer-facing announcement, published October 1, 2026, carries a different emphasis. It says more than 94 percent of Medicare-eligible individuals nationwide will have access to a UnitedHealthcare Medicare plan, and it mentions no plan exits.
The windows for choosing a different plan
The FAQ gives two dates. Affected members can enroll in another plan between October 15, 2026 and December 31, 2026 for a January 1, 2027 effective date. After that, a special election period lets them enroll in another Medicare Advantage option until February 28, 2027, though a plan chosen after year-end begins later than January 1.
Medicare’s own pages describe the same safety net from the government’s side. The Medicare.gov special enrollment period page says the chance to switch “starts 2 months before the plan’s contract with Medicare ends, and ends 1 full month after the contract ends,” and warns: “You’ll be enrolled in Original Medicare if you don’t join another Medicare Advantage Plan before your current plan ends.” The annual Open Enrollment period for drug plans, October 15 to December 7, is the third window, and it matters because Original Medicare carries no drug coverage of its own.
The Medigap guaranteed-issue right that the FAQ never mentions
The UnitedHealthcare FAQ does not mention Medigap. Medicare’s guide to Medigap health insurance does, and it describes a guaranteed-issue right for people whose Medicare Advantage plan is ending. The window runs from 60 days before the plan’s coverage ends, or the date in the plan’s termination notice, to no more than 63 days after the coverage ends. During it, a member can buy Medigap Plan A, B, C, D, F or G sold by an insurance company in the state, with limits on C and F for people newly eligible for Medicare after January 1, 2020.
Two limits come with the right. A Medigap policy cannot start until the Medicare Advantage coverage ends. And Medigap plans sold after 2005 do not include prescription drug coverage, so a member who returns to Original Medicare needs a separate Part D plan, enrolled during its designated period, to replace the drug benefit that the discontinued plan carried.
Four overlapping clocks start from one October 2 notice
The default is simple. The decision that replaces it is not, and the sources show why. The notice does not say which plans are ending in which counties in a form that can be compared. The Original Medicare path splits into three separate pieces: the hospital and medical coverage that arrives automatically, a Medigap policy with its own 63-day clock, and a Part D plan with its own enrollment period. A member who wants to stay in Medicare Advantage faces a fourth question, which plans serve the county and cover the drugs on that member’s list.
Those clocks overlap. The October 15 to December 31 window, the Part D period ending December 7 and the Medigap right running up to 63 days past the end of coverage all start from the same notice, and a missed clock cannot be recovered by hitting a later one.
Every part of that process can be done for free through the government. Medicare’s 1-800-MEDICARE line, 1-800-633-4227, with TTY at 1-877-486-2048, and the plan finder at medicare.gov are the official route, and UnitedHealthcare’s FAQ itself points members to medicare.gov for information about plan availability.
The coverage choice has to be made before the plan year turns
The UnitedHealthcare non-renewal puts the drug-plan period, the Medicare Advantage window and the Medigap clock on the same calendar, and the default that arrives on January 1 covers none of the three. The unfinished job is comparing replacement plans against the doctors and prescriptions of the member who received the notice.
The 2027 Medicare Open Enrollment Decision Kit is a 42-page decision kit with a cost calculator spreadsheet that compares plans on cost, drugs and doctors, plus the Open Enrollment calendar and a provider call script.
Line up the drug-plan and Medigap deadlines before the default takes over →
This piece was drafted with AI assistance; the dates and rules were checked against UnitedHealthcare’s FAQ document PCA-1-26-01592, Medicare.gov’s enrollment page and Medicare’s Medigap guide.
