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
2027 Medicare plans, data current as of Nov 12, 2026 4:46 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)) | 389 | 389 (100%) | n/a | 77 (19%) |
| MA-PD (Medicare Advantage with drug coverage) | 5,172 | 5,172 (100%) | 5,169 (99%) | 1,487 (28%) |
| PDP (Part D drug plan) | 323 | 323 (100%) | 323 (100%) | 0 (0%) |
| All Medicare plans | 5,884 | 5,884 (100%) | 5,492 (93%) | 1,564 (26%) |
Medicare Advantage provider directories (doctor in-network checks)
1,572 of 5,561 2027 Medicare Advantage plans (MA and MA-PD, 28%) 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 2027 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) |
740 | - | Nov 12, 2026 |
| Humana Inc. | Exact (CMS plan id) exact (InsurancePlan identifier = CMS plan id + year) |
832 | 832 of 861 (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 Directories can be out of date and a plan not listed here may still cover the doctor: always confirm with the plan and the doctor's office before enrolling.
3,163 counties, 286 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 2027 Medicare plans by county.
California - 2027 Medicare
404 plans (MA 7, MA-PD 387, PDP 10) in 55 counties. Benefits 100%, drug formulary 98%, provider network 7%.
See California plans by county
| Organization | MA | MA-PD | PDP | Benefits | Drug formulary | Provider network |
|---|---|---|---|---|---|---|
| AIDS Healthcare Foundation | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
| Alameda Alliance for Health | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
| Alignment Healthcare USA, LLC | 0 | 46 | 0 | 46 of 46 | 46 of 46 | 0 of 46 |
| Astiva Health Holdings Incorporated | 0 | 8 | 0 | 8 of 8 | 8 of 8 | 0 of 8 |
| California Physicians' Service | 0 | 20 | 2 | 22 of 22 | 22 of 22 | 0 of 22 |
| Centene Corporation | 0 | 14 | 2 | 16 of 16 | 16 of 16 | 0 of 16 |
| Champion Health Plans-USA, LLC. | 0 | 10 | 0 | 10 of 10 | 10 of 10 | 0 of 10 |
| Chinese Hospital Association | 0 | 4 | 0 | 4 of 4 | 4 of 4 | 0 of 4 |
| Clever Care Health Plan, Inc. | 0 | 6 | 0 | 6 of 6 | 6 of 6 | 0 of 6 |
| Community Health Group | 0 | 2 | 0 | 2 of 2 | 2 of 2 | 0 of 2 |
| Contra Costa Health Services | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
| Curana Health Holdings, LLC | 0 | 3 | 0 | 3 of 3 | 3 of 3 | 0 of 3 |
| CVS Health Corporation | 1 | 25 | 0 | 26 of 26 | 25 of 25 | 0 of 26 |
| Elevance Health, Inc. | 0 | 38 | 0 | 38 of 38 | 38 of 38 | 0 of 38 |
| Elite Health Systems, Inc. | 0 | 2 | 0 | 2 of 2 | 2 of 2 | 0 of 2 |
| Health Care Service Corporation | 0 | 0 | 1 | 1 of 1 | 1 of 1 | 0 of 1 |
| Health Plan of San Mateo | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
| Humana Inc. | 3 | 27 | 3 | 33 of 33 | 30 of 30 | 30 of 33 |
| IMPERIAL COUNTY LOCAL HEALTH AUTHORITY | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
| Imperial Health Plan of California | 1 | 3 | 0 | 4 of 4 | 3 of 3 | 0 of 4 |
| INLAND EMPIRE HEALTH PLAN | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
| Kaiser Foundation Health Plan, Inc. | 0 | 48 | 0 | 48 of 48 | 48 of 48 | 0 of 48 |
| Kern Health Systems (KHS) | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
| Local Initiative Health Authority for LA County | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
| Molina Healthcare, Inc. | 0 | 4 | 0 | 4 of 4 | 4 of 4 | 0 of 4 |
| Montage Health | 0 | 4 | 0 | 4 of 4 | 4 of 4 | 0 of 4 |
| Orange County Health Authority | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
| SAN FRANCISCO HEALTH AUTHORITY | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
| SAN JOAQUIN COUNTY HEALTH COMMISSION | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
| SANTA BARBARA SAN LUIS OBISPO REGIONAL HEALTH AUTH | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
| SANTA CLARA COUNTY HEALTH AUTHORITY | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
| SANTA CRUZ MONTEREY MERCED SAN BENITO MARIPOSA MAN | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
| SCAN Group | 0 | 66 | 0 | 66 of 66 | 66 of 66 | 0 of 66 |
| The Regents of the University of California | 0 | 2 | 0 | 2 of 2 | 2 of 2 | 0 of 2 |
| UnitedHealth Group, Inc. | 2 | 40 | 2 | 44 of 44 | 42 of 42 | 0 of 44 |
| Ventura County Medi-Cal Managed Care Commission | 0 | 1 | 0 | 1 of 1 | 1 of 1 | 0 of 1 |
All states
| State | MA | MA-PD | PDP | Benefits % | Formulary % | Network % |
|---|---|---|---|---|---|---|
| Alabama | 9 | 104 | 11 | 100% | 92% | 41% |
| Alaska | 0 | 0 | 9 | 100% | 100% | 0% |
| Arizona | 9 | 139 | 9 | 100% | 94% | 35% |
| Arkansas | 9 | 75 | 11 | 100% | 90% | 32% |
| California | 7 | 387 | 10 | 100% | 98% | 7% |
| Colorado | 6 | 98 | 8 | 100% | 94% | 34% |
| Connecticut | 4 | 44 | 10 | 100% | 93% | 29% |
| Delaware | 4 | 34 | 9 | 100% | 91% | 21% |
| District of Columbia | 3 | 12 | 9 | 100% | 87% | 4% |
| Florida | 22 | 538 | 11 | 100% | 96% | 38% |
| Georgia | 19 | 142 | 9 | 100% | 88% | 31% |
| Hawaii | 4 | 42 | 8 | 100% | 92% | 46% |
| Idaho | 7 | 37 | 8 | 100% | 86% | 19% |
| Illinois | 16 | 123 | 10 | 100% | 89% | 36% |
| Indiana | 8 | 132 | 8 | 100% | 94% | 35% |
| Iowa | 19 | 55 | 9 | 100% | 77% | 14% |
| Kansas | 8 | 72 | 12 | 100% | 91% | 32% |
| Kentucky | 8 | 115 | 8 | 100% | 93% | 38% |
| Louisiana | 6 | 118 | 8 | 100% | 95% | 43% |
| Maine | 6 | 44 | 8 | 100% | 89% | 22% |
| Maryland | 7 | 40 | 9 | 100% | 87% | 10% |
| Massachusetts | 15 | 82 | 10 | 100% | 83% | 4% |
| Michigan | 9 | 172 | 11 | 100% | 95% | 14% |
| Minnesota | 12 | 54 | 9 | 100% | 84% | 0% |
| Mississippi | 6 | 96 | 9 | 100% | 94% | 29% |
| Missouri | 12 | 162 | 9 | 100% | 93% | 35% |
| Montana | 5 | 18 | 9 | 100% | 84% | 53% |
| Nebraska | 10 | 42 | 9 | 100% | 83% | 22% |
| Nevada | 7 | 91 | 9 | 100% | 93% | 15% |
| New Hampshire | 3 | 17 | 8 | 100% | 89% | 46% |
| New Jersey | 8 | 63 | 11 | 100% | 90% | 21% |
| New Mexico | 3 | 58 | 10 | 100% | 95% | 32% |
| New York | 18 | 206 | 9 | 100% | 92% | 13% |
| North Carolina | 13 | 166 | 11 | 100% | 93% | 34% |
| North Dakota | 6 | 17 | 9 | 100% | 81% | 0% |
| Ohio | 16 | 164 | 9 | 100% | 91% | 23% |
| Oklahoma | 9 | 72 | 9 | 100% | 90% | 38% |
| Oregon | 11 | 84 | 8 | 100% | 89% | 33% |
| Pennsylvania | 22 | 316 | 8 | 100% | 93% | 17% |
| Rhode Island | 3 | 19 | 10 | 100% | 90% | 0% |
| South Carolina | 14 | 83 | 8 | 100% | 86% | 31% |
| South Dakota | 7 | 21 | 9 | 100% | 81% | 0% |
| Tennessee | 9 | 146 | 11 | 100% | 94% | 34% |
| Texas | 19 | 402 | 10 | 100% | 95% | 28% |
| Utah | 6 | 45 | 8 | 100% | 89% | 37% |
| Vermont | 1 | 4 | 10 | 100% | 93% | 33% |
| Virginia | 12 | 136 | 9 | 100% | 92% | 39% |
| Washington | 9 | 106 | 8 | 100% | 92% | 33% |
| West Virginia | 8 | 62 | 8 | 100% | 89% | 20% |
| Wisconsin | 28 | 89 | 8 | 100% | 77% | 14% |
| Wyoming | 4 | 4 | 9 | 100% | 76% | 29% |
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.