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

Provider networks in South Dakota.

InPlan holds provider listings for 67 marketplace (ACA) plans that serve South Dakota. Ask whether a plan lists a provider and get the answer with its source type and the date we read the directory.

MARKETPLACE PLANS
67
PLAN YEARS
2026
INSURERS AND PLAN ORGANIZATIONS
3
LATEST READ
2026-10-28

What we hold in South Dakota.

Plans whose provider directories list providers in our data. Together the marketplace plans hold more than 8 million provider-plan links.

Plans with provider listings in South Dakota, by market
MARKETPLANSINSURERSPLAN YEARSLATEST READ
Marketplace (ACA)67320262026-10-28

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 South Dakota.

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 South Dakota
INSURERMARKETPLANS
Avera Health PlansMarketplace (ACA)35
Sanford Health PlanMarketplace (ACA)18
WellmarkMarketplace (ACA)14

Example plans in South Dakota.

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
Sanford Individual Simplicity $1,750Sanford Health Plan31195SD01100012026Marketplace (ACA)Gold · PPO432,711
Sanford Individual Simplicity $3,500Sanford Health Plan31195SD01100032026Marketplace (ACA)Silver · PPO432,711
Sanford Individual Simplicity $7,200 HSA QualifiedSanford Health Plan31195SD01100062026Marketplace (ACA)Expanded Bronze · PPO432,711
Sanford Individual Simplicity Standardized $2,000Sanford Health Plan31195SD01100182026Marketplace (ACA)Gold · PPO291,403
Sanford Individual TRUE $6,500Sanford Health Plan31195SD00800072026Marketplace (ACA)Expanded Bronze · HMO272,220
SAMPLE ANSWER

A real South Dakota answer.

Inderjit Chabra, MD, who practises in Dakota Dunes, is listed in 31195SD0110001. 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=1003079773&plan_id=31195SD0110001"
Response, trimmed200 OK
{
  "npi": "1003079773",
  "plan_id": "31195SD0110001",
  "market": "aca",
  "in_network": true,
  "answer": "listed",
  "plan_year": 2026,
  "source": { "type": "insurer_directory", "as_of": "2026-10-28" }
}
NPI 1003079773PLAN 31195SD0110001

Inderjit Chabra, MD

Dermatology · Dakota Dunes, SD

Listed

PLAN
Sanford Individual Simplicity $1,750
INSURER
Sanford Health Plan
MARKET
Marketplace (ACA), plan year 2026
PLAN TYPE
Gold · PPO
NETWORK TIER
SIMPLICITY
SOURCE
insurer_directory · read 2026-10-28
One real answer, as the API returns itCheck another pair
DATA FILE

Every South Dakota provider, with every plan that lists them.

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

FREE API KEY

Check South Dakota 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.