NEWMedicare Advantage 2027 plans are live in the API.Read the changelog
STATE

Provider networks in Indiana.

InPlan holds provider listings for more than 110 marketplace (ACA) and Medicare Advantage plans that serve Indiana. Ask whether a plan lists a provider and get the answer with its source type and the date we read the directory.

MARKETPLACE PLANS
80
MEDICARE ADVANTAGE PLANS
32
INSURERS AND PLAN ORGANIZATIONS
7
LATEST READ
2026-10-29

What we hold in Indiana.

Plans whose provider directories list providers in our data. Together the marketplace plans hold more than 7.3 million provider-plan links.

Plans with provider listings in Indiana, by market
MARKETPLANSINSURERSPLAN YEARSLATEST READ
Marketplace (ACA)80520262026-10-29
Medicare Advantage32220272026-10-29

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.

Insurers in Indiana.

Plans with provider listings for each insurer or plan organization, as they publish their names. A Medicare Advantage plan counts in every state it serves.

Insurers with plans that list providers in Indiana
INSURERMARKETPLANS
CareSourceMarketplace (ACA)22
Cigna HealthcareMarketplace (ACA)18
Anthem Blue Cross and Blue ShieldMarketplace (ACA)15
UnitedHealthcareMarketplace (ACA)15
Ambetter HealthMarketplace (ACA)10
Devoted HealthMedicare Advantage23
Zing HealthMedicare Advantage9

Who the Medicare Advantage directories list.

More than 29,000 providers who practise in Indiana appear in the Medicare Advantage plans we hold. The most common primary specialties among them:

  • Nurse Practitioner5,143
  • Family Practice1,895
  • Clinical Social Worker1,639
  • Internal Medicine1,478
  • Dentist1,439
  • Physician Assistant1,422
  • Optometry1,192
  • Mental Health Counselor862

Specialties as the national provider registries record them. A provider counts once per specialty.

Example plans in Indiana.

Plans with the most provider-plan links, with the plan ID the API takes. Look any plan ID up for free with the plan ID lookup.

Example plans with provider listings
PLANPLAN IDYEARTYPEPROVIDER-PLAN LINKS
Standard SilverAmbetter Health35065IN00400012026Marketplace (ACA)Silver · HMO181,941
Zing Select Care IN (HMO)Zing HealthH4624-003-0002027Medicare AdvantageHMO107,214
Zing Elite Select IL-IN (HMO)Zing HealthH4624-026-0002027Medicare AdvantageHMO1,158
Complete GoldAmbetter Health35065IN00400042026Marketplace (ACA)Gold · HMO181,941
Focused SilverAmbetter Health35065IN00400102026Marketplace (ACA)Silver · HMO181,941
SAMPLE ANSWER

A real Indiana answer.

Emily Palomaki, MD, who practises in Bloomington, is listed in 17575IN0990001. This is the answer the API gives today for that pair, with its source type and the date we read the listing.

Requestany language that speaks HTTP
curl -H "Authorization: Bearer $INPLAN_KEY" \
  "https://api.inplan.io/v1/check?npi=1033615745&plan_id=17575IN0990001"
Response, trimmed200 OK
{
  "npi": "1033615745",
  "plan_id": "17575IN0990001",
  "market": "aca",
  "in_network": true,
  "answer": "listed",
  "plan_year": 2026,
  "source": { "type": "insurer_directory", "as_of": "2026-07-27" }
}
NPI 1033615745PLAN 17575IN0990001

Emily Palomaki, MD

Internal Medicine · Bloomington, IN

Listed

PLAN
Anthem Silver Essential 7000 Adult Dental/Vision ($0 Virtual PCP + $0 Select Drugs + Incentives)
INSURER
Anthem Blue Cross and Blue Shield
MARKET
Marketplace (ACA), plan year 2026
PLAN TYPE
Silver · HMO
NETWORK TIER
PARTICIPATING
SOURCE
insurer_directory · read 2026-07-27
One real answer, as the API returns itCheck another pair
DATA FILE

Every Indiana provider, with every plan that lists them.

The Indiana data file is one CSV: one row for each provider and plan pair, for every provider practising in Indiana, with the source type and read date on each row.

FREE API KEY

Check Indiana providers in your own product.

Send an NPI and a plan ID, get an answer with its evidence. Or ask for every plan that lists a provider. A free key gives 500 calls a month.