Resources
Network Coverage
The share of each state's individual-market plans with rates, in-network physician data and drug formulary data loaded, plus Medicare Advantage and Part D plans (Medicare tab). Select a state to see its insurers. Brokers can also compare plan networks and check doctor disruption.
Coverage map
2026 Medicare plans, data current as of Nov 12, 2026 4:32 AM CT. Tracked separately from individual-market (ACA) plans.
| Plan type | Plans loaded | With benefits | With drug formulary | With provider network |
|---|---|---|---|---|
| MA (Medicare Advantage (no drug coverage)) | 434 | 434 (100%) | n/a | 75 (17%) |
| MA-PD (Medicare Advantage with drug coverage) | 5,161 | 5,161 (100%) | 5,128 (99%) | 783 (15%) |
| PDP (Part D drug plan) | 367 | 367 (100%) | 367 (100%) | 0 (0%) |
| All Medicare plans | 5,962 | 5,962 (100%) | 5,495 (92%) | 858 (14%) |
Medicare Advantage provider directories (doctor in-network checks)
858 of 5,595 2026 Medicare Advantage plans (MA and MA-PD, 15%) have a public provider directory loaded, so /MedicarePlans can show whether your doctor is in network. Source: each organization's CMS-required public provider directory (Da Vinci Plan-Net FHIR API), crawled slowly and without registering for anything on a plan's behalf.
| Organization | Plan mapping | Plans mapped | Share of its 2026 MA plans | Directory crawled (CT) |
|---|---|---|---|---|
| Devoted Health | Exact (CMS plan id) exact (InsurancePlan identifier = CMS plan id; plan period year; bulk FHIR Bundles per contract/year) |
0 | - | Nov 12, 2026 |
| Humana Inc. | Exact (CMS plan id) exact (InsurancePlan identifier = CMS plan id + year) |
858 | 858 of 887 (96%) | Nov 9, 2026 |
Organizations whose directory API needs a developer registration or key are not loaded yet. "Estimated" mappings match a plan to a directory network by name or product line rather than by CMS plan id, so they are flagged on every doctor result. In-network status comes from each Medicare Advantage organization's public provider directory (CMS-required Plan-Net). Directories can be out of date and a plan not listed here may still cover the doctor: always confirm with the plan and the doctor's office before enrolling.
3,159 counties, 328 Part D formularies. Provider networks for Medicare Advantage plans are being added organization by organization (Humana first); where a plan shows no network data, confirm doctors with the plan. Browse 2026 Medicare plans by county.
Massachusetts - 2026 Medicare
114 plans (MA 15, MA-PD 88, PDP 11) in 14 counties. Benefits 100%, drug formulary 84%, provider network 4%.
See Massachusetts plans by county
| Organization | MA | MA-PD | PDP | Benefits | Drug formulary | Provider network |
|---|---|---|---|---|---|---|
| Baystate Health, Inc. | 2 | 4 | 0 | 6 of 6 | 4 of 4 | 0 of 6 |
| Blue Cross and Blue Shield of Massachusetts, Inc. | 0 | 10 | 0 | 10 of 10 | 10 of 10 | 0 of 10 |
| CareSource | 0 | 2 | 0 | 2 of 2 | 2 of 2 | 0 of 2 |
| Centene Corporation | 0 | 0 | 2 | 2 of 2 | 2 of 2 | 0 of 2 |
| Central Mass Health Holding LLC | 0 | 4 | 0 | 4 of 4 | 4 of 4 | 0 of 4 |
| CVS Health Corporation | 1 | 6 | 1 | 8 of 8 | 7 of 7 | 0 of 8 |
| Elevance Health, Inc. & BCBSMA & BCBSRI & BCBSVT | 0 | 0 | 2 | 2 of 2 | 2 of 2 | 0 of 2 |
| Eternal Health of Delaware, Inc. | 0 | 3 | 0 | 3 of 3 | 0 of 3 | 0 of 3 |
| Fallon Community Health Plan, Inc. | 1 | 8 | 0 | 9 of 9 | 8 of 8 | 0 of 9 |
| Health Care Service Corporation | 0 | 0 | 1 | 1 of 1 | 1 of 1 | 0 of 1 |
| Humana Inc. | 1 | 4 | 3 | 8 of 8 | 7 of 7 | 5 of 8 |
| Mass General Brigham Incorporated | 0 | 6 | 0 | 6 of 6 | 6 of 6 | 0 of 6 |
| Molina Healthcare, Inc. | 0 | 3 | 0 | 3 of 3 | 3 of 3 | 0 of 3 |
| Point32Health, Inc. | 8 | 23 | 0 | 31 of 31 | 23 of 23 | 0 of 31 |
| UnitedHealth Group, Inc. | 2 | 15 | 2 | 19 of 19 | 17 of 17 | 0 of 19 |
All states
| State | MA | MA-PD | PDP | Benefits % | Formulary % | Network % |
|---|---|---|---|---|---|---|
| Alabama | 8 | 90 | 12 | 100% | 92% | 17% |
| Alaska | 0 | 0 | 9 | 100% | 100% | 0% |
| Arizona | 7 | 126 | 10 | 100% | 95% | 13% |
| Arkansas | 10 | 81 | 12 | 100% | 90% | 21% |
| California | 8 | 394 | 12 | 100% | 95% | 6% |
| Colorado | 9 | 98 | 10 | 100% | 90% | 16% |
| Connecticut | 5 | 42 | 11 | 100% | 91% | 6% |
| Delaware | 5 | 32 | 10 | 100% | 89% | 12% |
| District of Columbia | 5 | 15 | 10 | 100% | 83% | 10% |
| Florida | 24 | 587 | 10 | 100% | 96% | 19% |
| Georgia | 19 | 147 | 10 | 100% | 87% | 18% |
| Hawaii | 4 | 40 | 8 | 100% | 88% | 11% |
| Idaho | 8 | 40 | 10 | 100% | 86% | 20% |
| Illinois | 17 | 143 | 12 | 100% | 87% | 17% |
| Indiana | 9 | 118 | 10 | 100% | 93% | 23% |
| Iowa | 19 | 54 | 11 | 100% | 77% | 10% |
| Kansas | 10 | 77 | 12 | 100% | 89% | 19% |
| Kentucky | 9 | 105 | 10 | 100% | 92% | 36% |
| Louisiana | 7 | 104 | 10 | 100% | 94% | 28% |
| Maine | 7 | 45 | 9 | 100% | 88% | 18% |
| Maryland | 10 | 53 | 10 | 100% | 86% | 13% |
| Massachusetts | 15 | 88 | 11 | 100% | 84% | 4% |
| Michigan | 14 | 178 | 12 | 100% | 93% | 10% |
| Minnesota | 13 | 69 | 11 | 100% | 86% | 6% |
| Mississippi | 7 | 86 | 10 | 100% | 93% | 22% |
| Missouri | 12 | 145 | 10 | 100% | 92% | 20% |
| Montana | 7 | 25 | 11 | 100% | 83% | 39% |
| Nebraska | 10 | 44 | 11 | 100% | 84% | 10% |
| Nevada | 5 | 100 | 10 | 100% | 95% | 13% |
| New Hampshire | 3 | 16 | 9 | 100% | 89% | 17% |
| New Jersey | 12 | 73 | 12 | 100% | 87% | 11% |
| New Mexico | 6 | 67 | 11 | 100% | 92% | 19% |
| New York | 21 | 197 | 10 | 100% | 88% | 5% |
| North Carolina | 14 | 161 | 12 | 100% | 92% | 14% |
| North Dakota | 7 | 22 | 11 | 100% | 82% | 0% |
| Ohio | 16 | 196 | 10 | 100% | 92% | 12% |
| Oklahoma | 11 | 71 | 11 | 100% | 88% | 25% |
| Oregon | 15 | 86 | 10 | 100% | 86% | 10% |
| Pennsylvania | 25 | 307 | 12 | 100% | 92% | 7% |
| Rhode Island | 3 | 20 | 11 | 100% | 91% | 0% |
| South Carolina | 13 | 82 | 11 | 100% | 87% | 21% |
| South Dakota | 8 | 19 | 11 | 100% | 78% | 0% |
| Tennessee | 8 | 124 | 12 | 100% | 93% | 13% |
| Texas | 27 | 396 | 12 | 100% | 93% | 15% |
| Utah | 7 | 48 | 10 | 100% | 89% | 23% |
| Vermont | 1 | 2 | 11 | 100% | 92% | 21% |
| Virginia | 14 | 129 | 9 | 100% | 90% | 27% |
| Washington | 11 | 115 | 10 | 100% | 91% | 19% |
| West Virginia | 9 | 60 | 12 | 100% | 88% | 24% |
| Wisconsin | 31 | 90 | 10 | 100% | 75% | 13% |
| Wyoming | 6 | 8 | 11 | 100% | 76% | 20% |
Sources: CMS Medicare Advantage and Part D Landscape files (plans, premiums, counties, Star Ratings), Plan Benefit Package files (benefits) and the Part D formulary files. Formulary applies to MA-PD and PDP plans only. Derived from CMS public files (Landscape, Plan Benefit Package, Part D formulary). Plan availability, premiums, benefits and drug coverage can change: always confirm with the insurer or Medicare.gov before enrolling.