Medicare Advantage vs. Medigap in Brooklyn, NY

Medicare Advantage vs. Medigap in Brooklyn, NY: The Real 2026 Cost Comparison

By Paul Barrett, CMIP | The Modern Medicare Agency | Melville, NY 18+ years Medicare-exclusive experience | Licensed in 37 states | 40+ carriers Last updated: July 2026

Most articles on this topic give you a features chart — networks, referrals, premiums — and leave you to guess what it actually costs. I want to do something different: use Brooklyn’s real 2026 numbers, on both sides, and show you what a healthy year and a bad year actually look like in dollars.

I’m independent — I represent more than 40 carriers across both Medicare Advantage and Medigap, so nothing here is written to steer you toward one option. It’s written so you can see the real trade-off clearly.

KEY TAKEAWAYS

• A $0-premium Brooklyn Medicare Advantage plan can cost as little as $300 a year beyond your Part B premium in a healthy year — but as much as $11,350 in a year with a major hospitalization or high drug costs.
• The cheapest real Medigap Plan G rate in Brooklyn (UnitedHealthcare/AARP, $372.50/month) plus a standalone Part D plan runs $5,167 to $7,267 a year, almost regardless of how much care you actually use.
• That’s the entire trade-off in one sentence: Medicare Advantage can be cheaper, but the cost swings wildly with your health. Medigap costs more on average, but the swing is small.
• Brooklyn Medicare Advantage members are currently living a real example of network risk — the active UnitedHealthcare/NewYork-Presbyterian dispute — that simply doesn’t exist for Medigap.
• Medicare Advantage enrollees have access to only about 48% of the physicians available to Original Medicare beneficiaries in the same area — a real gap most people underestimate, since only about 1% of physicians nationwide have opted out of Original Medicare entirely.
• New York Medigap premiums are rising sharply — a confirmed 17.8% single-year increase for the market’s dominant carrier (UnitedHealthcare, ~70%+ of NY Medigap enrollees) in 2026, with 11.6%-13.5% more proposed for 2027 — and that trend is pushing more consumers toward Medicare Advantage on cost alone, not necessarily preference.
• There’s no universal right answer. It depends on how much financial uncertainty you’re willing to carry in exchange for a lower average cost.

THE CORE TRADE-OFF, IN PLAIN ENGLISH

Medicare Advantage (Part C) bundles your Part A, Part B, and usually Part D coverage through a private carrier, typically built around a network — HMO, PPO, or HMO-POS. Many Brooklyn plans charge $0 or a low monthly premium. In exchange, your out-of-pocket costs depend on how much care you use in a given year, up to an annual maximum.

Medigap (Medicare Supplement) works alongside Original Medicare. You keep Original Medicare as your base coverage, and the Medigap policy picks up most of what Original Medicare leaves you owing — coinsurance, copays, deductibles, depending on the plan letter. You can see any doctor nationwide who accepts Medicare, with no network and no referrals. The trade-off is a real monthly premium, plus a separate Part D plan for drug coverage, since Medigap doesn’t include it.

WHAT IT ACTUALLY COSTS: TWO REAL BROOKLYN SCENARIOS

Here’s where the features table stops being useful and the real math starts. I built this using an actual $0-premium Brooklyn Medicare Advantage HMO (Healthfirst 65 Plus Plan, 13,006 enrollees, $9,250 out-of-pocket maximum) against the cheapest real Medigap Plan G rate available in Brooklyn’s NYC Proper rating region (UnitedHealthcare/AARP at $372.50/month), paired with the 2026 average standalone Part D premium ($34.50/month).

Both scenarios below exclude the Part B premium ($202.90/month, or $2,435.60/year), since you pay that regardless of which path you choose — it’s not a differentiator.

A healthy year — routine care only:

A major health event year — hospitalization, high drug costs, or both:

The gap tells the whole story. In a healthy year, the Medicare Advantage member comes out roughly $4,900 ahead. In a bad year, the Medigap member comes out roughly $4,100 ahead — and critically, the Medigap member’s cost barely moved between the two scenarios, while the Medicare Advantage member’s cost moved by more than $11,000.

WHY THIS ISN’T JUST A HYPOTHETICAL: THE NETWORK RISK IS REAL RIGHT NOW

Medicare Advantage’s cost variability isn’t the only thing that swings — network access can too, and Brooklyn residents are living through a real example of it as this is written.

UnitedHealthcare and NewYork-Presbyterian are in an active contract dispute, with in-network access extended only through July 31, 2026. This directly touches Brooklyn: NewYork-Presbyterian Brooklyn Methodist Hospital and its Brooklyn Medical Group practices are named among the facilities that would go out-of-network if no new agreement is reached — not just the Manhattan campuses. Starting August 1, 2026, those facilities could become out-of-network for most UHC Medicare Advantage members.

Anthem and Mount Sinai already went through this in 2026. When their contract lapsed, Mount Sinai’s entire system — including Mount Sinai Brooklyn — went out-of-network for all Anthem Blue Cross Blue Shield members starting March 4, 2026. A new agreement restored access about six weeks later, effective April 13, 2026. It’s resolved now, but it happened, and it’s proof this risk is concrete, not theoretical.

A Medigap member never has this conversation. Since Medigap works alongside Original Medicare rather than a private network, there’s no hospital system to lose access to — you can see any doctor nationwide who accepts Medicare, full stop.

For a deeper look at how network type affects this trade-off within Medicare Advantage itself, see HMO vs. PPO Medicare Advantage in Brooklyn, NY — PPO plans generally handle a situation like this better than HMOs, since you can go out-of-network at a higher cost instead of losing access entirely.

THE PROVIDER ACCESS POINT MOST PEOPLE MISS

Here’s something worth sitting with if you spent your working years on an employer group health plan: you likely never had access to anywhere near “any doctor.” Group and individual private insurance plans are built around networks too, often narrow ones. Original Medicare works differently — the vast majority of physicians nationwide accept it. Only about 1% of non-pediatric physicians have formally opted out of the Medicare program entirely.

That matters because Medigap rides on top of Original Medicare, so a Medigap member inherits that same broad access. Medicare Advantage doesn’t work the same way. According to KFF’s analysis of federal data, the average Medicare Advantage enrollee is in a plan whose network includes only about 48% of the physicians available to Original Medicare beneficiaries in the same area — less than half. That’s not a knock on Medicare Advantage; plenty of people never notice, because their doctors happen to be in-network and stay that way. But for people who’ve spent decades navigating employer-plan network restrictions, the idea of walking into nearly any doctor’s office nationwide and knowing you’re covered isn’t a small thing — for a lot of people, it’s the first time in their adult life they’ve had that kind of access. That psychological comfort is real, even if it’s hard to put a dollar figure on it.

WHY NEW YORK MEDIGAP PREMIUMS KEEP CLIMBING

If you’ve shopped Medigap in New York recently and felt sticker shock, you’re not imagining it — and understanding why helps explain where this market is headed.

New York’s consumer protections are also what makes the market expensive to compete in. The same guaranteed-issue, community-rated rules that let you buy a Medigap policy year-round regardless of your health also mean insurers can’t use medical underwriting to manage their risk the way they can in most other states. Every applicant gets the same rate regardless of age or health status. That protects consumers, but it also means a carrier can’t price a policy differently for a healthier or sicker applicant — the whole risk pool gets priced together.

The market is dominated by one carrier. UnitedHealthcare, through its AARP-branded Medigap program, holds roughly 70%+ of New York’s Medigap market — a far bigger share than in most states. Because the state’s rules make it hard for smaller, price-competitive carriers to profitably undercut a dominant player at this kind of scale, real competitive pressure on pricing is limited. Several of the carriers in Brooklyn’s own rate table (Bankers Conseco, Humana, Mutual of Omaha) are priced well above UnitedHealthcare for identical, federally standardized coverage — a sign of a market with a dominant player and comparatively thin competition beneath it, not a market where carriers are fighting hard for your business on price.

Rates have been rising sharply. UnitedHealthcare’s own 2026 New York filing carried a confirmed 17.8% single-year increase for Plan G — the largest DFS-approved increase of its kind in recent memory — and the carrier has already filed a proposed 11.6% to 13.5% increase for 2027. High utilization among the existing Medigap risk pool is a major driver: because New York carriers can’t underwrite, they can’t price out unhealthy individual applicants — the primary lever they have left to manage a book of business with rising claims costs is raising rates across the board, which affects everyone in the pool, healthy or not.

What this means going forward: as Medigap premiums keep climbing, it becomes financially out of reach for a growing share of consumers — even though guaranteed-issue rules technically keep the option open to everyone regardless of health. That’s part of why Medicare Advantage enrollment has kept growing in New York even as Medigap has gotten more expensive: for a lot of people, it’s less a preference than a budget decision. It’s also worth understanding that this dynamic cuts both ways — a New York-specific pressure that doesn’t exist the same way in most other states, and one more reason the “which is right for you” answer here isn’t static. It’s worth revisiting with your specific numbers each year, not just deciding once and assuming it still holds.

A separate, unrelated development worth being aware of: CMS launched a new prior authorization pilot for Original Medicare (the “WISeR” model) on January 1, 2026, running through 2031 — but it’s currently limited to six states (New Jersey, Ohio, Oklahoma, Texas, Arizona, and Washington). New York is not currently included. It’s a trend worth watching nationally, since it signals Medicare is looking for new ways to control costs in Original Medicare too, not just Medicare Advantage — but it doesn’t affect Original Medicare or Medigap coverage in Brooklyn today.

QUALITY: ONE SIDE OF THIS COMPARISON VARIES, THE OTHER DOESN’T

This is a distinction worth understanding clearly. Medigap plans are federally standardized — a Plan G from one carrier covers exactly the same benefits as a Plan G from any other carrier. The only real differences between Medigap carriers are price, customer service, and financial stability. There’s no CMS star rating for Medigap because there’s nothing to rate differently; the coverage is identical by law.

Medicare Advantage plans are not standardized. Brooklyn’s 38 traditional MA plans carry CMS star ratings ranging from 3.0 to 5.0 stars, and — as we found when comparing HMO and PPO plans directly — the highest-rated plans aren’t necessarily the cheapest, and $0-premium plans often carry only average ratings. If you’re leaning toward Medicare Advantage, the star rating and specific plan details matter enormously, in a way they simply don’t for Medigap.

WHO ACTUALLY FITS EACH OPTION

Medicare Advantage tends to make sense if:

• Lower average cost matters more to you than cost predictability.
• You’re in good health with few chronic conditions and don’t expect major medical events.
• Your doctors and preferred hospital are solidly in-network with a plan you trust, and you’re comfortable monitoring that relationship year to year.
• You want dental, vision, and hearing benefits bundled in without a separate purchase.

Medigap tends to make sense if:

• You’d rather pay a predictable amount every month than risk a five-figure bad year.
• You have ongoing health conditions, take expensive medications, or anticipate needing significant care.
• You want the freedom to see any doctor nationwide without worrying about networks — including specialists outside Brooklyn, or care while traveling or spending part of the year elsewhere.
• The current network disputes (UHC/NewYork-Presbyterian, or situations like Anthem/Mount Sinai) make you uncomfortable with the idea of a plan-specific network at all.

PAUL’S HONEST TAKE

I don’t think this is a “which is better” question — I think it’s a “how much uncertainty are you comfortable carrying” question. If you’re healthy, watching your budget, and your doctors are solidly in-network with a strong local plan, a $0 Medicare Advantage plan can be a genuinely smart choice — plenty of my clients do great on one for years. But I’ve also sat with people who picked the cheapest premium without understanding that “cheapest” and “lowest cost” aren’t the same thing once a bad year hits. The Medigap premium isn’t a waste of money — it’s the price of not having to think about any of this again.

Here’s the part I want to be direct about, though: the math above isn’t static, and it’s tilting in one direction. New York’s Medigap rates have been climbing hard — a confirmed 17.8% jump in 2026 alone for the largest carrier — and I don’t see anything in this market that suggests that slows down soon. That means fewer people every year will find Medigap genuinely affordable, even though guaranteed issue technically keeps the door open to everyone. I think that’s part of why Medicare Advantage keeps growing here even as more people become aware of its network trade-offs — for a real chunk of Brooklyn’s Medicare population, it’s becoming less a lifestyle preference and more a budget reality.

None of this means Medicare Advantage is the “right” answer or Medigap is the “wrong” one. It means both sides of this decision are moving targets, and a plan that made sense for you two years ago might not be the strongest option for you today. That’s true whether you’re on Medigap watching your renewal notice, or on Medicare Advantage watching your plan’s network and star rating shift year to year. Neither answer is wrong. What’s wrong is picking either one once and assuming it stays the right call forever.