Medicare Advantage plans in Massachusetts, 2027
76 Medicare Advantage plans are sold in Massachusetts for 2027 (82 in 2026); 58 are open to everyone and 24 of those have a $0 premium everywhere they are sold. 55,898 Massachusetts members in September 2026 were in plans that end or leave their county for 2027.
What changes in Massachusetts for 2027?
| In the state | 2026 | 2027 | Change |
|---|---|---|---|
| Plans sold in the state | 82 | 76 | ▼down 6 |
| Plans open to everyone | 63 | 58 | ▼down 5 |
| Plans with a $0 premium everywhere they are sold | 29 | 24 | ▼down 5 |
| Plans that lower the Part B premium | 9 | 9 | no change |
Source: CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision); CMS plan benefit package files, 2027 and 2026.
Which companies sell the most plans in Massachusetts?
Plans open to everyone, by parent company and the brands it sells under, 2027
Source: CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision).
Which Massachusetts counties lose the most?
Plans end in or leave Massachusetts counties 77 times for 2027. Counties with the most members in those plans come first; each links to its 2027 plan list.
| County | Plans open to all | $0 premium | Plans that end or leave | Their members here |
|---|---|---|---|---|
| Worcester | 34 | 19 | 15 | 22,052 |
| Middlesex | 33 | 15 | 5 | 10,060 |
| Essex | 35 | 16 | 12 | 7,300 |
| Berkshire | 7 | 2 | 4 | 4,087 |
| Suffolk | 33 | 14 | 7 | 4,052 |
| Norfolk | 34 | 15 | 4 | 3,026 |
| Plymouth | 34 | 15 | 10 | 2,824 |
| Bristol | 39 | 20 | 5 | 1,222 |
| Barnstable | 16 | 3 | 2 | 536 |
| Hampden | 37 | 16 | 3 | 367 |
| Dukes | 8 | 6 | 4 | 207 |
| Hampshire | 28 | 8 | 2 | 75 |
| Nantucket | 3 | 1 | 3 | 69 |
| Franklin | 22 | 7 | 1 | 21 |
Source: CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision); CMS plan crosswalk from 2026 to 2027 (Oct. 1, 2026); CMS monthly enrollment by plan and by county, September 2026 (CMS hides counts under 11).
Which large plans sold in Massachusetts end?
| 2026 plan | Brand | Members in all states, Sept. 2026 |
|---|---|---|
| Mass General Brigham AdvantageH9485-001 | Mass General Brigham Health Plan | 14,363 |
| Erickson Advantage SignatureH5652-001 | UnitedHealthcare | 4,520 |
| Mass Advantage PremiereH9904-001 | Mass Advantage | 4,066 |
| Mass General Brigham Advantage PremierH9485-002 | Mass General Brigham Health Plan | 2,376 |
| Mass Advantage BasicH7670-001 | Mass Advantage | 2,103 |
| Tufts Medicare Preferred PPO RXH9907-002 | Tufts Health Plan | 2,034 |
| Mass General Brigham Advantage SignatureH9485-003 | Mass General Brigham Health Plan | 1,482 |
| Erickson Advantage LibertyH5652-008 | UnitedHealthcare | 1,044 |
| Humana Direct Choice GivebackH5216-424 | Humana | 855 |
| Mass Advantage ExtraH9904-002 | Mass Advantage | 814 |
Source: CMS plan crosswalk from 2026 to 2027 (Oct. 1, 2026); CMS monthly enrollment by plan and by county, September 2026 (CMS hides counts under 11).
Which plans in Massachusetts lower the Part B premium?
9 plans open to everyone and sold in at least one Massachusetts county pay part of the Part B premium in 2027; the largest reduction comes first.
| 2027 plan | Brand | Monthly reduction |
|---|---|---|
| Humana USAA Honor GivebackH5216-059 | Humana | $123 |
| AARP Medicare Advantage Patriot No Rx MA-MA2H5253-225 | UnitedHealthcare | $110 |
| Aetna Medicare Eagle GivebackH5521-296 | Aetna Medicare | $90 |
| Fallon Medicare Plus Saver No RxH9001-039 | Fallon Health | $75 |
| AARP Medicare Advantage Patriot No Rx MA-MA01H8768-045 | UnitedHealthcare | $60 |
| HumanaChoice GivebackH5216-477 | Humana | $48 |
| eternalHealth Give BackH2694-002 | eternalHealth | $48 |
| HumanaChoice GivebackH5216-138 | Humana | $40 |
| HumanaChoice GivebackH7617-046 | Humana | $40 |
Source: CMS plan benefit package files, 2027 and 2026; CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision).
542,597 of Massachusetts's 1,524,427 people with Medicare were in a Medicare Advantage plan in September 2026 (36%).
What else should you check?
- Every plan not offered in 2027By company and state
- Part B giveback plansWhere they are sold
- Every statePlan counts for 2027