Free tool · plan year 2027
Pick a state and a county. We list every Medicare Advantage plan that was available there for 2026 and does not appear in the federal 2027 landscape file, with how much of the county's enrollment sits in those plans.
Built for hospital finance, managed-care and practice-management teams who need the payer-mix picture before budget season closes.
Source: CMS, CY2027 Medicare Advantage and Part D Landscape Source File (PY2027, retrieved October 3, 2026) and Monthly Enrollment by CPSC, September 2026.
Every state with county-level Advantage plan data for 2027.
67 counties with data · 67 with at least one plan missing from the 2027 file
15 counties with data · 15 with at least one plan missing from the 2027 file
75 counties with data · 75 with at least one plan missing from the 2027 file
56 counties with data · 31 with at least one plan missing from the 2027 file
64 counties with data · 54 with at least one plan missing from the 2027 file
Why a plan is missing from the 2027 file. A second federal file explains that, and it posts after the landscape file.
Whether a plan's members will be moved to another plan automatically. That is in the same second file.
What any plan will cost for 2027, what its network will be, or which plan any individual should choose. This is not plan-shopping advice.
Exact enrollment. Cells below the federal publication floor of 11 are not published, so every count here is a floor and undercounts small rural counties most.
Beyond one county
In Network watches payer medical policy, coding rules and contracted rates for hospitals and practices, and tells you the day something moves.
In Network is not affiliated with, endorsed by, or acting on behalf of the Centers for Medicare & Medicaid Services, the U.S. Department of Health and Human Services, or any government agency.
This page is a summary of public CMS files. It is not advice about which plan anyone should choose, and it is not a plan comparison.
Plan availability can change. Verify any plan's status at medicare.gov or by calling 1-800-MEDICARE (1-800-633-4227), TTY 1-877-486-2048.
If you are looking at this because of your own coverage, medicare.gov and the number above are the right places to get an answer about it.
Source: Centers for Medicare & Medicaid Services, CY2027 Medicare Advantage and Part D Landscape Source File and Monthly Enrollment by CPSC, retrieved October 3, 2026.
8 counties with data · 8 with at least one plan missing from the 2027 file
3 counties with data · 3 with at least one plan missing from the 2027 file
1 county with data · 1 with at least one plan missing from the 2027 file
67 counties with data · 67 with at least one plan missing from the 2027 file
159 counties with data · 158 with at least one plan missing from the 2027 file
5 counties with data · 5 with at least one plan missing from the 2027 file
44 counties with data · 37 with at least one plan missing from the 2027 file
102 counties with data · 102 with at least one plan missing from the 2027 file
92 counties with data · 92 with at least one plan missing from the 2027 file
99 counties with data · 99 with at least one plan missing from the 2027 file
105 counties with data · 63 with at least one plan missing from the 2027 file
120 counties with data · 120 with at least one plan missing from the 2027 file
64 counties with data · 64 with at least one plan missing from the 2027 file
16 counties with data · 16 with at least one plan missing from the 2027 file
24 counties with data · 24 with at least one plan missing from the 2027 file
14 counties with data · 14 with at least one plan missing from the 2027 file
83 counties with data · 83 with at least one plan missing from the 2027 file
87 counties with data · 87 with at least one plan missing from the 2027 file
82 counties with data · 70 with at least one plan missing from the 2027 file
115 counties with data · 115 with at least one plan missing from the 2027 file
50 counties with data · 40 with at least one plan missing from the 2027 file
93 counties with data · 87 with at least one plan missing from the 2027 file
14 counties with data · 8 with at least one plan missing from the 2027 file
10 counties with data · 10 with at least one plan missing from the 2027 file
21 counties with data · 21 with at least one plan missing from the 2027 file
33 counties with data · 31 with at least one plan missing from the 2027 file
62 counties with data · 62 with at least one plan missing from the 2027 file
100 counties with data · 100 with at least one plan missing from the 2027 file
53 counties with data · 53 with at least one plan missing from the 2027 file
88 counties with data · 88 with at least one plan missing from the 2027 file
77 counties with data · 72 with at least one plan missing from the 2027 file
31 counties with data · 23 with at least one plan missing from the 2027 file
67 counties with data · 67 with at least one plan missing from the 2027 file
78 counties with data · 78 with at least one plan missing from the 2027 file
5 counties with data · 5 with at least one plan missing from the 2027 file
46 counties with data · 41 with at least one plan missing from the 2027 file
66 counties with data · 66 with at least one plan missing from the 2027 file
95 counties with data · 95 with at least one plan missing from the 2027 file
254 counties with data · 244 with at least one plan missing from the 2027 file
29 counties with data · 20 with at least one plan missing from the 2027 file
6 counties with data · 2 with at least one plan missing from the 2027 file
133 counties with data · 121 with at least one plan missing from the 2027 file
39 counties with data · 36 with at least one plan missing from the 2027 file
55 counties with data · 55 with at least one plan missing from the 2027 file
72 counties with data · 71 with at least one plan missing from the 2027 file
23 counties with data · 3 with at least one plan missing from the 2027 file