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Medicare Advantage

Medicare Advantage Open Enrollment: Waterbury's Jan. 1–March 31, 2027 Window

WATERBURY, Conn. — For Waterbury residents already enrolled in a Medicare Advantage plan, a second chance to adjust coverage is coming. The Medicare Advantage Open Enrollment Period runs January 1 through March 31, 2027, and it gives current Advantage members one opportunity to make a change if their plan isn't working out.

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2027 PLAN ALERT

Medicare Advantage plans in your area are changing or leaving for 2027.

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Annual Enrollment: Oct 15 – Dec 7

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BEFORE YOU ENROLL

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Person reviewing paperwork at home in Waterbury — illustrating this Medicare guide
Photo: Kelly Sikkema Photo by Kelly Sikkema on Unsplash

Key takeaways

  • The Medicare Advantage Open Enrollment Period runs Jan. 1 through March 31, 2027, and is only for people already in a Medicare Advantage plan.
  • During this window, you can switch to a different Medicare Advantage plan or drop your Advantage plan and return to Original Medicare with a stand-alone Part D drug plan.
  • You can only make one change during this period, and it takes effect the first day of the month after the plan receives your request.
  • For personalized help in Waterbury, call CHOICES, Connecticut's SHIP program, or 1-800-MEDICARE.

This window is smaller and quieter than the fall Annual Enrollment Period, but it matters. Many people don't realize they can still switch plans in the new year — especially after seeing how their coverage actually plays out at the pharmacy counter or a doctor's office in January.

What this period is — and who it's for

The Medicare Advantage Open Enrollment Period (often shortened to MA OEP) is different from the fall Annual Enrollment Period, which ended December 7. The MA OEP is only for people who are already enrolled in a Medicare Advantage plan as of January 1.

If you're in Original Medicare, this window does not apply to you. You cannot use it to jump into a Medicare Advantage plan for the first time.

What you can change

During January 1 through March 31, 2027, you can:

You can only make one change during this period. Whichever move you make, coverage begins the first day of the month after your new plan receives the enrollment request.

What you cannot do in this window

The MA OEP is narrower than the fall window. It does not let you:

Those kinds of changes generally had to happen during the Annual Enrollment Period (Oct. 15–Dec. 7) or require a Special Enrollment Period tied to a life event.

Why Waterbury residents might use it

Waterbury is in New Haven County, where a wide range of Medicare Advantage plans are offered. That variety is a good thing, but it also means the plan you picked in the fall may not feel right once you actually use it. Common reasons people revisit their choice in January or February include:

By the numbers

Medicare Part B premium, 2006–2026

The standard monthly Part B premium has climbed from $88.50 in 2006 to $202.90 in 2026. Hover any point for that year’s premium.

$0$50$100$150$200200820122016202020242026

Source: CMS. Standard premium shown; in some hold-harmless years many existing enrollees paid less. Confirm at Medicare.gov.

2027 Part D changes worth knowing

Even if you don't make a change, some program-wide rules for 2027 are worth understanding, because they affect the drug coverage inside most Medicare Advantage plans:

How to make a change

Before switching, it helps to gather:

You can compare plans at medicare.gov using the Plan Finder tool, or call 1-800-MEDICARE (1-800-633-4227), available 24 hours a day, 7 days a week.

For free, unbiased local help, Connecticut's State Health Insurance Assistance Program is called CHOICES. Waterbury-area residents can reach CHOICES counselors through the Western Connecticut Area Agency on Aging or by calling 1-800-994-9422.

Key dates

Medicare enrollment periods at a glance

  • Around your 65thInitial Enrollment PeriodA 7-month window around the month you turn 65 — your first chance to sign up.
  • October 15 – December 7Annual Enrollment PeriodAnyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan.
  • January 1 – March 31Medicare Advantage Open EnrollmentIf you're already in a Medicare Advantage plan, you can make one change.
  • January 1 – March 31General Enrollment PeriodFor people who missed their first chance to sign up for Part B.
  • VariesSpecial Enrollment PeriodTriggered by life events like moving or losing other coverage.

Dates are set by Medicare and apply nationwide. Confirm your personal windows at Medicare.gov or 1-800-MEDICARE.

Compare with a licensed agent

See Medicare options serving Waterbury & speak with a licensed agent

Medicare Advantage companies in New Haven County

By local enrollment size · informational, not a ranking
CompanyLocal enrollmentPlans offeredLocal agentsAction
Aetna (CVS Health)National—Yes
UnitedHealthcareNational—Yes
Elevance Health (Anthem)National—Yes
Molina Healthcare IncRegional—Yes
Point32health IncRegional—Yes
HumanaNational—Yes
Enrollment data: CMS Medicare Advantage enrollment by company (county level). Figures shown are illustrative sample data pending the current CMS file. Listed by enrollment size, largest first — this is not a ranking, recommendation, or endorsement of any company or plan.

Provided by licensed insurance partners; MyMedicarePlans.org may be compensated. Not a ranking or endorsement of any plan.

Explore

When can you enroll? An interactive year

JFMAMJJASOND
October 15 – December 7 — anyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan. Changes take effect January 1.

Enrollment windows are federal and the same nationwide. Confirm your personal dates at Medicare.gov or 1-800-MEDICARE.

Explore

The parts of Medicare

Part A covers inpatient hospital stays, skilled nursing facility care, hospice, and some home health care. Most people pay no premium for Part A.

Good to know

Frequently asked questions

Can I join a Medicare Advantage plan for the first time between January and March?
No. The Medicare Advantage Open Enrollment Period is only for people already enrolled in a Medicare Advantage plan on January 1. If you're in Original Medicare and want to join an Advantage plan, you generally need to wait for the fall Annual Enrollment Period or qualify for a Special Enrollment Period.
How many changes can I make during this window?
Just one. Once your new plan takes effect, you're locked into that choice until the next enrollment opportunity, unless you qualify for a Special Enrollment Period.
When does my new coverage start?
Your new coverage begins the first day of the month after the plan receives your enrollment request. So a change made in February would typically take effect March 1.
Where can Waterbury residents get free, one-on-one help?
Contact CHOICES, Connecticut's SHIP program, at 1-800-994-9422, or call 1-800-MEDICARE. You can also compare plans yourself at medicare.gov. These resources are free and do not sell insurance. For official rules, deadlines, and the plan comparison tool, visit **medicare.gov** or call **1-800-MEDICARE**. Waterbury residents looking for personal guidance can reach a trained CHOICES counselor through Connecticut's SHIP program at no cost.
Sources & further reading
  • CMS — Medicare enrollment periods (medicare.gov)

For personalized answers, contact Medicare.gov, 1-800-MEDICARE, or your local SHIP.

Also for Waterbury

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This page was last updated: September 30, 2026.

Medicare plans in your area changing for 2027 — check yoursCall