More than 40,000 Mainers are poised to be dropped from their Medicare Advantage plans in January, as insurers exit certain parts of the state or cut some statewide plans entirely, according to the Maine Bureau of Insurance.

Insurance companies will notify individual members about changes to their coverage. Those who receive notices of termination should hold onto that record, the bureau said in a Friday release.

Individuals whose plans are expiring should enroll in new Medicare Advantage or Medicare Supplement plans during the annual open enrollment period from Oct. 15 to Dec. 7 to avoid a lapse in coverage, the bureau said.

The cuts will impact at least 40,557 Mainers, said Joanne Rawlings, director of the bureau’s consumer health care division.

Last week, the state said about 36,000 Mainers would be impacted, but that figure did not include Humana, which will scale back plans to terminate coverage for more than 3,500 Mainers, Rawlings said in an update Wednesday afternoon. That update also added about 100 members to Aetna’s list of terminations.

That figure represents about one in every six Medicare Advantage members in the state, according to according to the data from KFF, a health policy research center. There were about 212,000 Mainers on the plans in 2024, the latest year for which data is available.

Martin’s Point plans make up the majority of the terminations, according to a list provided by the bureau. Between its Generations Advantage Prime, Generations Advantage Value Plus and Generations Advantage Select plans, the company will terminate coverage for more than 28,000 members, according to a breakdown provided by the bureau.

In a comment received after publication, Martin’s Point spokesperson Steve Amendo said insurance companies regularly update or modify their offerings, and “we have plan options that ensure coverage is available throughout the entire state.”

A list of Medicare Advantage plans that will still be available in 2026, by county, is available on the bureau’s website.

Medicare Advantage members whose plans are being terminated can also select Medicare Supplement plans, also known as Medigap, which can help cover out-of-pocket costs for services covered by original Medicare plans.

Members with questions can call the State Health Insurance Program at 1-877-353-3771 weekdays from 8 a.m. to 4:30 p.m. The federal Center for Medicaid and Medicare Services can be reached 24/7 at 1-877-486-2048.

Editor’s Note: This story was updated on Oct. 22 to include new details about terminated plans from the Bureau of Insurance and a comment received after initial publication.