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

Quartz provider networks, plan by plan.

InPlan holds provider listings for 57 Quartz marketplace (ACA) plans in Wisconsin. Together they hold more than 2 million provider-plan links, each with the date we read the directory.

InPlan is independent and not affiliated with Quartz. Plan and insurer names appear as the plans publish them.

PLANS WITH LISTINGS
57
STATE
Wisconsin
PLAN YEARS
2026
LATEST READ
2026-10-28

What we hold for Quartz.

Each plan below has a provider directory that lists providers in our data. The API answers from these listings, one provider and one plan at a time, and returns the source type and read date with every answer.

Quartz plans with provider listings, by market
MARKETPLANSSTATESPLAN YEARSPROVIDER-PLAN LINKSLATEST READ
Marketplace (ACA)57120262,076,5482026-10-28

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.

Where: Wisconsin.

Plans with provider listings in each state. A Medicare Advantage plan that serves several states counts in each of them.

Quartz plans with provider listings, by state
STATEMARKETPLACE PLANS
Wisconsin57

Example Quartz plans.

5 of the plans we hold, 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 IDYEARTYPESTATEPROVIDER-PLAN LINKS
Quartz One Achieve W/Uw Health Gold Maintenance (Dental & Vision) $700 DedQuartz37833WI03801942026Marketplace (ACA)Gold · HMOWisconsin36,722
Quartz One Achieve W/Uw Health Gold (Dental & Vision) Standard Easy PricingQuartz37833WI03801962026Marketplace (ACA)Gold · HMOWisconsin36,722
Quartz One Achieve W/Uw Health Bronze (Dental & Vision) $0 Medical DedQuartz37833WI03802042026Marketplace (ACA)Expanded Bronze · HMOWisconsin36,722
Quartz One Achieve W/Uw Health Silver (Dental & Vision) $8,000 DedQuartz37833WI03802722026Marketplace (ACA)Silver · HMOWisconsin36,722
Quartz One Achieve W/Uw Health Catastrophic $10,600 DedQuartz37833WI05400082026Marketplace (ACA)Catastrophic · HMOWisconsin36,722
SAMPLE ANSWER

Is Monica E. Uselding, PT in this Quartz plan?

Yes. The directory for 37833WI0380194 lists Monica E. Uselding, PT in Twin Lakes, WI. 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=1003018219&plan_id=37833WI0380194"
Response, trimmed200 OK
{
  "npi": "1003018219",
  "plan_id": "37833WI0380194",
  "market": "aca",
  "in_network": true,
  "answer": "listed",
  "plan_year": 2026,
  "source": { "type": "insurer_directory", "as_of": "2026-10-28" }
}
NPI 1003018219PLAN 37833WI0380194

Monica E. Uselding, PT

Physical Therapy · Twin Lakes, WI

Listed

PLAN
Quartz One Achieve W/Uw Health Gold Maintenance (Dental & Vision) $700 Ded
INSURER
Quartz
MARKET
Marketplace (ACA), plan year 2026
PLAN TYPE
Gold · HMO
NETWORK TIER
PREFERRED
SOURCE
insurer_directory · read 2026-10-28
One real answer, as the API returns itCheck another pair
FREE API KEY

Check any provider against Quartz plans.

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.

Other insurers in the same states

Figures counted 2026-10-30. Sources: provider directories published by insurers and plans; public plan and provider registries.