By Long Island Senior Advisor Care Team · September 16, 2026
Changing a Medicare plan this fall is routine for most Long Island seniors. For a parent already receiving Medicaid-funded home care through a MAP plan, it can pull apart the arrangement the care is built on.
The mailers have already started
If your parent lives in Nassau or Suffolk, the envelopes are probably stacking up on the kitchen counter already. Medicare's Annual Enrollment Period -- CMS calls it the Medicare Open Enrollment Period, the mailers call it AEP, and the television ads just call it a deadline -- runs from October 15 through December 7. Anything changed in that window takes effect January 1.
For most people over 65, this is a genuinely routine decision about drug coverage and copays. For a household where one parent is already receiving Medicaid-funded home care, it is not routine at all. In New York, the Medicare plan and the long-term care benefit can be welded together, and pulling on one can detach the other.
Long Island has roughly 564,500 residents aged 65 and older -- about 273,100 in Nassau and 291,400 in Suffolk -- and both counties run above the New York State and national averages for share of population over 65. A large number of those households are dually eligible for Medicare and Medicaid. This is the season when the wrong phone call costs somebody their aide.
What follows is not plan-shopping advice. It is the structural question to answer before anyone shops.
First: find out which of New York's three arrangements your parent is actually in
New York does not have one long-term care program. NYSDOH operates three separate models of Managed Long Term Care plan, and the differences matter enormously in October.
Partially capitated MLTC. This is the most common by far. The plan covers Medicaid long-term care and related services -- personal care, home health, adult day health care, transportation, dental, therapies -- with care management attached. It does not cover Medicare benefits at all. Your parent's doctors, hospital stays and prescriptions run through a completely separate Medicare arrangement.
Medicaid Advantage Plus (MAP). A MAP plan administers Medicare, Medicaid, long-term care and drug benefits through one organization. Per NYSDOH, one of the seven eligibility requirements for MAP is that the member must enroll in the MAP plan's aligned Medicare Advantage Dual Special Needs Plan. The Medicare side is not optional and it is not interchangeable.
PACE -- the Program of All-Inclusive Care for the Elderly -- is the third model, also fully integrated.
The eligibility bars differ too. Enrollment in a partially capitated plan rests on an assessed need for community-based long-term care services for more than 120 days. MAP and PACE add a nursing-home level-of-care requirement on top of that: for MAP, either limited assistance with physical maneuvering for more than two activities of daily living, or -- with a dementia or Alzheimer's diagnosis -- supervision with more than one ADL.
If nobody in the family can say with confidence which of the three your parent is in, that is the first call to make, and it should be made before October 15.
If it is a MAP plan, an Annual Enrollment switch is not a small decision
This is the trap, and it is easy to walk into with good intentions. An adult child sees an advertisement for a Medicare Advantage plan with a grocery allowance, a gym benefit, or a lower drug copay. The plan looks better on paper. They help their mother enroll.
Because MAP requires enrollment in that plan's own aligned D-SNP, moving the Medicare half to an unaffiliated carrier pulls apart the arrangement the MAP plan is built on. The home care hours, the care manager who knows the case, and the aide who has been coming to the house for two years all sit on the other side of that seam.
None of this makes MAP the wrong choice, and none of it means a MAP member can never change plans. It means the change has to be evaluated as a long-term care decision with a Medicare component, not as a Medicare decision. Ask the plan directly, in advance and in writing, what happens to the long-term care benefit if the Medicare enrollment moves, and what the process and timeline would be to restore services under a new arrangement.
Get the answer before December 7, not after January 1.
If it is a partially capitated MLTC plan, the Medicare choice is separate -- but not irrelevant
Here the news is better. A partially capitated MLTC plan is a Medicaid product. Changing a Medicare Advantage plan, or moving between Medicare Advantage and Original Medicare, does not end enrollment in it. The authorized home care hours come from the Medicaid assessment process, not from the Medicare card.
That is the reassuring half. The other half is that the Medicare change still decides which physicians, hospitals and specialists are covered -- and on Long Island that question has real geographic teeth. Northwell Health, Catholic Health, Stony Brook Medicine and NYU Langone each anchor different parts of the Island, and a plan that works cleanly for a family in Manhasset may leave a family in Riverhead or Patchogue driving considerably farther for in-network care.
Before switching anything, write down the actual names: the primary care physician, the cardiologist or neurologist, the hospital the family would choose in an emergency, and the pharmacy. Then check each one against the specific plan being considered, for the 2027 plan year rather than the current one. Networks are re-contracted annually.
Do not take a marketing summary's word for it. Verify each provider individually with the plan.
The rules for dual eligibles changed in 2025, and a lot of families still have not caught up
For years, anyone with both Medicare and full Medicaid could change Medicare Advantage plans more or less at will. That is over.
Effective January 1, 2025, CMS replaced the old quarterly special enrollment period for dually eligible and Extra Help-eligible individuals with two narrower ones. The dual/LIS SEP allows a once-per-month election into Original Medicare with a standalone prescription drug plan, or a switch between standalone drug plans. The integrated care SEP allows full-benefit dual eligibles a once-per-month election into an integrated D-SNP -- a FIDE SNP, HIDE SNP or applicable integrated plan -- and it must be used to align that enrollment with a Medicaid managed care organization. New York is among the states where integrated plans are available.
Read what is missing from that list. Per CMS's own guidance, neither of these special enrollment periods permits enrolling in a non-D-SNP Medicare Advantage plan, or switching between non-D-SNP Medicare Advantage plans. A dual eligible can still choose any Medicare Advantage plan -- but only during the Initial Enrollment Period, the Annual Enrollment Period, the Medicare Advantage Open Enrollment Period that runs January 1 through March 31, or another applicable SEP.
So the practical effect is twofold, and both halves point the same direction. October 15 through December 7 is now one of the few windows with wide latitude, which raises the stakes on getting it right. And a change made in haste this fall cannot simply be reversed next month the way it once could.
What Annual Enrollment does not change
It is worth being precise about the boundaries, because the marketing blurs them.
It does not redetermine Medicaid eligibility. The resource and income rules, the spend-down, and the spousal figures live in a different system entirely. For 2026, NYSDOH puts the Community Spouse Resource Allowance between $74,820 and $162,660, the community spouse's minimum monthly maintenance needs allowance at $4,066.50, and the home equity limit for long-term care Medicaid at $1,130,000. Nothing on a Medicare enrollment form moves any of those numbers.
It does not change the authorized hours of home care. Those follow from assessment, not from plan selection.
It does not make MLTC optional. Enrollment has been mandatory in both Nassau and Suffolk since the transition that began in 2013, for Medicaid recipients aged 21 and older who need community-based long-term care for more than 120 days.
And it does not make Medicare pay for assisted living. It never has. Medicare covers medical care; room, board and custodial supervision in a licensed Adult Care Facility are private-pay, or -- in the specific communities that participate -- partly covered through New York's Assisted Living Program. If your family is weighing a move this fall, that math is a separate exercise from the one on the kitchen counter. New York's statewide assisted living median is $7,110 a month; there is no published Long Island-specific figure and no published memory care median anywhere, so be skeptical of any local number quoted to you without a source.
Where to get free, unbiased help on Long Island
Two different phone numbers, for two different questions. Families waste weeks calling the wrong one.
For the Medicare side -- comparing plans, drug coverage, Medigap, what a change would cost -- New York runs HIICAP, the Health Insurance Information Counseling and Assistance Program. More than 700 trained counselors work out of local offices for the aging across the state. The statewide helpline is 1-800-701-0501; callers state their county and are routed to the local program. HIICAP counselors do not sell plans and do not earn commissions, which is precisely the difference between them and the voice on the other end of a mailer.
Nassau and Suffolk each run their own separate Office for the Aging -- this is not a shared regional agency, and one county cannot enroll you in the other's programs. Nassau County Office for the Aging: 516-227-8900. Suffolk County Office for the Aging: 631-853-8200. Either can also connect you to NY Connects for broader long-term care questions.
For the Medicaid long-term care side -- which MLTC model your parent is enrolled in, what the options are, how a transfer works -- call New York Medicaid Choice, the State's enrollment broker, at 1-888-401-6582. Their published hours are Monday through Friday, 8:30 a.m. to 8:00 p.m., and Saturday 10:00 a.m. to 6:00 p.m.
Both are free. Neither is trying to sell you anything. Call them before you call the number on the postcard.
A short checklist before December 7
Confirm the model. Partially capitated MLTC, MAP, or PACE -- in writing, from the plan, not from memory.
If it is MAP or PACE, ask the plan in writing what a Medicare Advantage change would do to the long-term care benefit, and how long restoration would take.
List the actual providers by name -- primary care, specialists, preferred hospital, pharmacy -- and verify each one against the 2027 network of any plan under consideration.
Check the drug list for the coming year, not the current one. Formularies are re-set annually and a drug covered in 2026 may sit in a different tier in 2027.
Call HIICAP at 1-800-701-0501 before making the change, not after.
And if the underlying reason you are looking at all of this is that home care is no longer holding -- more hours than the plan will authorize, a spouse who cannot keep up, a night-time wandering problem -- then the honest answer is that a different Medicare plan will not fix it. That is a level-of-care conversation, and it deserves its own.
