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  1. 🏠
  2. Medicare Advantage Plans
  3. Massachusetts
  4. Nantucket County

2026 Medicare Advantage Plans in Nantucket County, MA

Last update: September 1, 2026.

In Nantucket County, MA, there are 4 Medicare Advantage plans available for 2026. Of these, 1 offer a $0 monthly premium, and about 0% are rated 4 stars or higher based on CMS quality ratings.

Medicare Advantage Special Needs Plans (SNPs) are not included in the figures shown above. View Special Needs Plans in Nantucket County, MA. Or explore all Medicare Options available in Nantucket County, MA.

  • PPO Plans
  • HMO-POS Plans

At a Glance

County-level summary of Medicare Advantage plan availability and enrollment based on CMS data.

Average Monthly Premium
$134.25/mo
Plans with $0 Premium
1
Average MOOP Limit
$3,000 ($9,250 max. in 2026)
Star Ratings (Plan Mix)
4+ Stars: 0% · 3 Stars: 100% · Below 3: 0%
Average Part D Deductible
$350.00
Total MA/MAPD Enrollment
74
Plans with the Highest Enrollment
(as of September 8, 2026)
1. Mass General Brigham Advantage (PPO) — 39 enrollees
2. Mass General Brigham Advantage Signature (PPO) — 18 enrollees
3. Mass General Brigham Advantage Secure (HMO-POS) — 17 enrollees

Medicare Advantage PPO Plans

Preferred Provider Organization (PPO) plans allow members to use both in-network and out-of-network providers. Out-of-network care typically costs more, but PPOs offer greater flexibility in how care is accessed.

Total PPO Plans
3
Average Monthly Premium
$158.33/mo
Total PPO Enrollment
57
$0 Premium PPO Plans
1
Average MOOP
$2,883
Top PPO by Enrollment
Mass General Brigham Advantage (PPO) — 39 enrollees
PPO Plans Without Drug Coverage
0

PPO Medicare Advantage plan comparison – Nantucket County, Massachusetts, 2026
Health Plan Name CMS Rating* Premium Per Mo MOOP PDP Ded. CMS Plan ID
Mass General Brigham Advantage
☆☆☆☆☆
$0 $5,500 $350 H9485-001-0
Mass General Brigham Advantage Premier
☆☆☆☆☆
$150 $3,150 $350 H9485-002-0
Mass General Brigham Advantage Signature
☆☆☆☆☆
$325 $0 $350 H9485-003-0
What is the total number of PPO plans offered in Nantucket?

Nantucket County has 3 PPO plans for 2026, with 57 enrolled.

How much do PPO plans cost in Nantucket?

The typical PPO premium in Nantucket is $158.33, and 1 plans have no monthly premium.

Medicare Advantage HMO-POS Plans

HMO Point-of-Service (HMO-POS) plans combine HMO network requirements with limited out-of-network access. Care outside the network typically costs more, but HMO-POS plans provide added flexibility compared with standard HMOs.

  • Total HMO-POS Plans 1
  • Average Monthly Premium $62.00/mo
  • Total HMO-POS Enrollment 17
  • $0 Premium HMO-POS Plans 0
  • Average MOOP $3,350
  • Top HMO-POS by Enrollment Mass General Brigham Advantage Secure (HMO-POS) — 17 enrollees
  • HMO-POS Plans Without Drug Coverage 0

HMO-POS Medicare Advantage plan comparison – Nantucket County, Massachusetts, 2026
Health Plan Name CMS Rating* Premium Per Mo MOOP PDP Ded. CMS Plan ID
Mass General Brigham Advantage Secure
☆☆☆☆☆
$62 $3,350 $350 H6847-001-0
What is the total number of HMO-POS plans in Nantucket?

There are 1 HMO-POS plans in 2026, covering 17 enrollees.

How much do HMO-POS plans cost in Nantucket?

The average HMO-POS premium in Nantucket is $62.00 per month, with 0 plans offering $0 premiums.

What is the leading HMO-POS plan in Nantucket?

Mass General Brigham Advantage Secure (HMO-POS) is the top HMO-POS in Nantucket, with 17 enrollees.

What is the number of HMO-POS plans without Part D coverage in Nantucket?

0 HMO-POS plans in Nantucket do not include prescription drug coverage.

The table below shows CMS star ratings for Medicare Advantage plans in Nantucket County, MA for 2026.

CMS Star Ratings for Medicare Advantage Plans in Nantucket County, MA (2026)
Rating Category Number of Plans Percent of Plans
5 Stars No 5-star plans available. 0%
4 Stars (includes 5 Stars) 0 0%
3 Stars 4 100%
Below 3 Stars 0 0%
Not Rated 0 0%
Average Rating 3.5

* Medicare Advantage star ratings are determined by CMS each year using a standardized 5-star rating system.

  • CMS.gov, Medicare Advantage & Special Needs Plan Landscape Source Files — Version: 202608
  • CMS.gov, Medicare Part C & D Performance Data — Version: 2026
  • CMS.gov, Medicare Advantage & Part D Contract and Enrollment Data — Version: 2026-08

This page presents county-level Medicare Advantage (MA/MAPD) data, including plan counts, enrollment totals, averages, and percentage distributions, derived from CMS datasets using a standardized aggregation approach.

Data sources and methodology documentation .

  • Medicare.gov, "Compare types of Medicare Advantage Plans" — Last accessed 25 May, 2025
  • Medicare.gov, "Your coverage options" — Last accessed 25 May, 2025
  • AARP.org, "The Big Choice: Original Medicare vs. Medicare Advantage" — Last accessed 25 May, 2025

MedicarePlans.com is an independent, non-government informational resource and is not affiliated with or endorsed by the U.S. Government or the federal Medicare program.

Data provenance documentation is maintained in alignment with the U.S. Core Data for Interoperability (USCDI) Provenance standard .

Page content independently curated and maintained by David W. Bynon, Editorial Steward, using a standardized, data-driven methodology for accurate, non-commercial Medicare plan interpretation and resolution.

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