Provider networks by insurer.
The 40 insurers we hold the most plans for, across marketplace (ACA) and Medicare Advantage plans. Each page shows the states, plan years and read dates we hold, example plans and one real answer from the API.
Ranked by plans held.
Plans whose provider directories list providers in our data. Brands that publish under several company names are grouped under one name.
| # | INSURER | MARKETS | PLANS | STATES |
|---|---|---|---|---|
| 01 | Devoted Health | Medicare Advantage | 740 | 34 states |
| 02 | Blue Cross and Blue Shield of Texas | Marketplace (ACA) | 546 | Texas |
| 03 | Ambetter Health | Marketplace (ACA) | 378 | 20 states |
| 04 | Oscar Health | Marketplace (ACA) | 321 | 14 states |
| 05 | UnitedHealthcare | Marketplace (ACA) | 282 | 19 states |
| 06 | HealthSpring | Medicare Advantage | 195 | 24 states |
| 07 | Cigna Healthcare | Marketplace (ACA) | 124 | 7 states |
| 08 | Molina Healthcare | Marketplace (ACA), Medicare Advantage | 121 | 19 states |
| 09 | BlueCross BlueShield of Tennessee | Marketplace (ACA), Medicare Advantage | 119 | 2 states |
| 10 | Florida Blue | Marketplace (ACA) | 116 | Florida |
| 11 | Blue Cross Blue Shield of Arizona | Marketplace (ACA) | 115 | Arizona |
| 12 | Anthem Blue Cross and Blue Shield | Marketplace (ACA) | 112 | 5 states |
| 13 | Blue Cross and Blue Shield of Oklahoma | Marketplace (ACA) | 92 | Oklahoma |
| 14 | Priority Health | Marketplace (ACA), Medicare Advantage | 90 | Michigan |
| 15 | CareSource | Marketplace (ACA), Medicare Advantage | 85 | 5 states |
| 16 | Blue Cross and Blue Shield of Nebraska | Marketplace (ACA) | 78 | Nebraska |
| 17 | BlueCross BlueShield of South Carolina | Marketplace (ACA) | 74 | South Carolina |
| 18 | Blue Cross and Blue Shield of Montana | Marketplace (ACA) | 67 | Montana |
| 19 | AvMed | Marketplace (ACA) | 64 | Florida |
| 20 | Quartz | Marketplace (ACA) | 57 | Wisconsin |
| 21 | Blue Cross and Blue Shield of Louisiana | Marketplace (ACA) | 48 | Louisiana |
| 22 | Avera Health Plans | Marketplace (ACA) | 47 | 2 states |
| 23 | Sanford Health Plan | Marketplace (ACA) | 36 | 2 states |
| 24 | Zing Health | Medicare Advantage | 36 | 6 states |
| 25 | Wellpoint | Marketplace (ACA) | 34 | 2 states |
| 26 | Security Health Plan | Marketplace (ACA) | 34 | Wisconsin |
| 27 | CHRISTUS Health Plan | Marketplace (ACA) | 33 | 2 states |
| 28 | AmeriHealth Caritas Next | Marketplace (ACA) | 32 | 4 states |
| 29 | Antidote Health Plan | Marketplace (ACA) | 31 | 2 states |
| 30 | Highmark Blue Cross Blue Shield | Marketplace (ACA) | 30 | 2 states |
| 31 | Dean Health Plan | Marketplace (ACA) | 27 | Wisconsin |
| 32 | Network Health | Marketplace (ACA) | 26 | Wisconsin |
| 33 | Paramount | Marketplace (ACA) | 26 | Ohio |
| 34 | Moda Health | Marketplace (ACA) | 25 | 3 states |
| 35 | MMM (Medicare y Mucho Mas) | Medicare Advantage | 25 | Puerto Rico |
| 36 | Health First | Marketplace (ACA) | 24 | Florida |
| 37 | Blue Cross and Blue Shield of Kansas City | Marketplace (ACA) | 23 | 2 states |
| 38 | Florida Health Care Plans | Marketplace (ACA) | 23 | Florida |
| 39 | Regence BlueCross BlueShield | Marketplace (ACA) | 22 | 2 states |
| 40 | Select Health | Marketplace (ACA) | 21 | Utah |
How we count: a plan counts when its provider directory lists at least one provider in our data. A provider-plan link is one listing of one provider in one plan. For marketplace plans it counts each plan year and network tier the directory gives; for Medicare Advantage plans it counts each provider once per plan.
Counted 2026-10-30. InPlan is independent and not affiliated with any insurer listed here.
Check any provider against any plan we hold.
One call answers whether a plan lists a provider, with the source type and read date. Another returns every plan that lists a provider.