◊ Connecticut · CT

Learn more about your Medicare plan options in Connecticut.

In Connecticut we represent both Medicare Supplement and Medicare Advantage plans from a wide variety of insurance carriers. We price off Connecticut carrier filings and ZIP-level plan availability rather than national averages — and there is never a charge for the consultation.

Connecticut Medicare at a glance

700,000
Medicare beneficiaries statewide (approx.)
48%
Enrolled in Medicare Advantage — about 336,000 people
19.3%
Of the Connecticut population is on Medicare

Approximate statewide estimates based on publicly reported CMS Medicare enrollment data.

◊ Medigap in CT

Connecticut Medicare Supplement plans.

Roughly 52% of Connecticut beneficiaries stay on Original Medicare, and most of them pair it with a Medicare Supplement (Medigap) policy. While well-known carriers such as Anthem Blue Cross and Blue Shield have Medigap options here, several other A-rated carriers offer competitive prices. Because Medigap benefits are standardized by plan letter, identical coverage from a lesser-known carrier can save hundreds of dollars a year — and when you are living on a fixed income, every dollar counts.

Keep in mind that every health insurance company is subject to annual rate increases. Your Connecticut Medigap plan will see premium adjustments over time, which is why we review your policy each year at renewal and re-shop the market for you at no cost.

Medigap plans available in Connecticut

Connecticut offers all of the standardized Medigap plans available in nearly every other state: Plan A, B, C, D, F, G, K, L, M, and N, plus high-deductible options. If you became eligible for Medicare on or after January 1, 2020, Plans C and F are not available to you — but do not worry about missing Plan F. Plan G is usually the more cost-effective option anyway, and Plan N is worth a look if you are comfortable with small copays at the doctor's office.

Most-purchased Connecticut Medigap plans and what they cover
PlanPart A deductiblePart B deductiblePart B excessBest fit in CT
Plan GCoveredYou payCoveredMost popular — full coverage after one deductible
High-Deductible GAfter deductibleYou payAfter deductibleLowest premium, highest out-of-pocket ceiling
Plan NCoveredYou payNot coveredLower premium with small office/ER copays
Plan FCoveredCoveredCoveredOnly if Medicare-eligible before 2020
Plan K / LPartialYou payNot coveredCost-sharing plans with an annual out-of-pocket limit

◊ Medicare Advantage in CT

Connecticut Medicare Advantage plans.

For Connecticut residents interested in Medicare Advantage, there are many plan options. HMO plans generally carry the lowest premiums — many at $0 per month — but there are reasonably priced PPO options as well for people who want out-of-network flexibility. More than 336,000 Medicare beneficiaries are enrolled in Advantage plans across the state, about 48% of everyone on Medicare in Connecticut.

Most Connecticut Medicare Advantage plans include prescription drug coverage. For people choosing Medigap instead, standalone Part D drug plans are available statewide. The right answer is rarely about premium — it is about whether your doctors, hospitals, and prescriptions are inside the plan's Connecticut network and formulary.

Carriers writing Medicare business in Connecticut

  • Anthem Blue Cross and Blue Shield
  • Aetna
  • ConnectiCare
  • UnitedHealthcare

Carrier availability varies by county and ZIP code. We do not offer every plan available in your area.

◊ Connecticut ZIP coverage

5 markets. Each a different plan menu.

Medicare Advantage networks and Part D formularies are built county by county, and Medigap rates are set by ZIP code. A retiree in 06604 Bridgeport is shopping a genuinely different list than a retiree in 06510 New Haven. Here is how the Connecticut market breaks down.

06604

Bridgeport, CT

Fairfield County

Dense urban market with the widest carrier network access in the state — expect the largest slate of Medicare Advantage plans and the most competitive Medigap rating.

06510

New Haven, CT

New Haven County

University town with strong academic medical center access, which frequently favors Medicare Supplement plans over narrow-network HMOs.

06103

Hartford, CT

Hartford County

State capital and government-retiree hub, where employer and TRS retiree coverage often coordinates with Medicare Parts A and B.

06901

Stamford, CT

Fairfield County

Established suburban market with strong hospital coverage and competitive Advantage premiums, many at $0 per month.

06702

Waterbury, CT

New Haven County

Legacy manufacturing market with a large share of union and retiree group plans that need to be compared against individual Medicare options.

◊ Connecticut Medicare FAQ

Frequently asked questions.

Do I need a Part D plan in Connecticut?

If you pair Original Medicare with a Connecticut Medicare Supplement plan, yes — Medigap does not include prescription coverage, so you add a standalone Part D plan. Most Connecticut Medicare Advantage plans already bundle Part D, so a separate plan is usually unnecessary and can actually disenroll you from your Advantage plan.

Which Medigap plans are available in Connecticut?

Connecticut offers the full set of standardized Medigap plans — A, B, C, D, F, G, K, L, M, and N, plus high-deductible F and G. Plans C and F are only available to people who became eligible for Medicare before January 1, 2020. For everyone newly eligible, Plan G and Plan N are the two most commonly purchased options.

How much do Medicare Supplement plans cost in Connecticut?

Medigap premiums in Connecticut vary by carrier, age, gender, tobacco use, and ZIP code — two people in different parts of the state can pay meaningfully different rates for identical coverage. Because Medigap benefits are standardized by letter, the smartest move is to compare every A-rated carrier writing in your ZIP rather than defaulting to the best-known brand.

When can I enroll in a Medigap plan in Connecticut without health questions?

Your one-time, six-month Medigap Open Enrollment Period begins the month you are 65 or older and enrolled in Medicare Part B. During that window, Connecticut carriers cannot decline you or rate you up for health history. Outside it, you generally have to answer medical underwriting questions unless a guaranteed-issue right applies.

Can I switch from Medicare Advantage to Medigap in Connecticut?

You can drop a Medicare Advantage plan during the Annual Election Period (October 15 – December 7) or the Medicare Advantage Open Enrollment Period (January 1 – March 31), then apply for a Medigap plan. Keep in mind you may be subject to underwriting in Connecticut if you are outside your Medigap Open Enrollment window.

Need help exploring Connecticut Medicare plan options?

Meet one-on-one with a licensed advisor to compare Connecticut Medicare Supplement, Medicare Advantage, and Part D plans side by side. Meet by phone or in person. There is no charge for this service.

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Connecticut Medicare plan information reviewed for 2026. Enrollment and penetration figures are approximate statewide estimates from publicly reported CMS Medicare enrollment data.