Curated cohort / fixed public roster
Wisconsin marketplace issuer cohort
The Patient Access and Provider Directory APIs of every issuer selling an individual-market qualified health plan on HealthCare.gov in Wisconsin for 2026, graded on the same public surfaces as every other endpoint here.
12organizations reviewed
10published a base URL we could verify
18endpoints listed
13answered on this run
10 of 12 member organizations publish a FHIR base URL this project could verify from public documentation, which is a curation record with a date on it, not a live figure; 18 verified endpoints are listed below. Of those, 13 answered when this page was generated, which is the measured number: it comes from this run's probes, and it moves when the endpoints do. The rest of the roster is recorded with the reason it could not be listed, because for a cohort whose membership is public and finite, the gap is itself a finding.
Membership is CMS's own file, not a list assembled here. The QHP Landscape PY2026 Individual Medical dataset published by the Center for Consumer Information and Insurance Oversight lists every plan sold on HealthCare.gov; filtered to Wisconsin it carries 2,651 plan-county rows, 12 HIOS issuer IDs, and 12 issuer names. The roster was frozen before any URL was probed and is committed beside this file as wisconsin-marketplace.roster.csv.
Every member either points at registry endpoints or carries an exclusion with a dated review record and the source that was read. An exclusion is a statement about what this project could find on the date it looked, never a statement about whether an issuer meets an obligation.
Membership sources
- CMS / CCIIO: QHP Landscape PY2026 Individual Medical (individual_market_medical.zip, issued 2026-08-04, modified 2026-08-10) (retrieved 2026-09-04)
Listed endpoints
| Plan | Programs | Endpoint | Category | Grade |
|---|---|---|---|---|
| Anthem Blue Cross and Blue Shield (Elevance) | Wisconsin individual marketplace (HealthCare.gov) | Anthem Blue Cross Blue Shield Patient Access API (Elevance) | Payer Patient Access APIs | not observed |
| Anthem Blue Cross and Blue Shield (Elevance) | Wisconsin individual marketplace (HealthCare.gov) | Elevance Health shared Provider Directory API | Payer Provider Directory APIs | C |
| Aspirus Health Plan | Wisconsin individual marketplace (HealthCare.gov) | Aspirus Health Plan Patient Access API | Payer Patient Access APIs | not observed |
| Aspirus Health Plan | Wisconsin individual marketplace (HealthCare.gov) | Aspirus Health Plan Provider Directory API | Payer Provider Directory APIs | not observed |
| CareSource (Common Ground Healthcare) | Wisconsin individual marketplace (HealthCare.gov) | CareSource Patient Access API | Payer Patient Access APIs | A |
| CareSource (Common Ground Healthcare) | Wisconsin individual marketplace (HealthCare.gov) | CareSource Provider Directory API | Payer Provider Directory APIs | A |
| Group Health Cooperative-SCW | Wisconsin individual marketplace (HealthCare.gov) | Group Health Cooperative-SCW Patient Access API | Payer Patient Access APIs | A |
| Group Health Cooperative-SCW | Wisconsin individual marketplace (HealthCare.gov) | Group Health Cooperative-SCW Provider Directory API | Payer Provider Directory APIs | not observed |
| HealthPartners | Wisconsin individual marketplace (HealthCare.gov) | HealthPartners Patient Access API | Payer Patient Access APIs | A |
| MercyCare Health Plans | Wisconsin individual marketplace (HealthCare.gov) | MercyCare Health Plans Patient Access API | Payer Patient Access APIs | A |
| MercyCare Health Plans | Wisconsin individual marketplace (HealthCare.gov) | MercyCare Health Plans Provider Directory API | Payer Provider Directory APIs | C |
| Network Health | Wisconsin individual marketplace (HealthCare.gov) | Network Health Patient Access API | Payer Patient Access APIs | A |
| Network Health | Wisconsin individual marketplace (HealthCare.gov) | Network Health Provider Directory API | Payer Provider Directory APIs | not observed |
| Quartz | Wisconsin individual marketplace (HealthCare.gov) | Quartz Patient Access API | Payer Patient Access APIs | A |
| Quartz | Wisconsin individual marketplace (HealthCare.gov) | Quartz Provider Directory API | Payer Provider Directory APIs | C |
| Security Health Plan of Wisconsin | Wisconsin individual marketplace (HealthCare.gov) | Security Health Plan Member API | Payer Patient Access APIs | C |
| Security Health Plan of Wisconsin | Wisconsin individual marketplace (HealthCare.gov) | Security Health Plan Provider Directory API | Payer Provider Directory APIs | C |
| UnitedHealthcare | Wisconsin individual marketplace (HealthCare.gov) | UnitedHealthcare Provider Directory API | Payer Provider Directory APIs | C |
Grades are comparable within a category only: a Patient Access API and a Provider Directory API answer to different expectations and are never ranked against each other.
What "did not answer" was
The condition each listed endpoint that did not answer was observed in on this run, kept apart by category and never added together. An endpoint that answered and declined this request is running; an endpoint that produced no document is a different fact about a different thing. This project reports the condition and reads neither of them as a choice or as a defect.
| Endpoint | Condition | What it means |
|---|---|---|
| Anthem Blue Cross Blue Shield Patient Access API (Elevance) | Answered, and declined this request | the surface answered, and declined to serve this request |
| Aspirus Health Plan Patient Access API | No answer reached this project | no answer from the surface reached this project |
| Endpoint | Condition | What it means |
|---|---|---|
| Aspirus Health Plan Provider Directory API | No answer reached this project | no answer from the surface reached this project |
| Group Health Cooperative-SCW Provider Directory API | Answered, but not with the document | the surface answered, and the answer was not the document |
| Network Health Provider Directory API | Answered, but not with the document | the surface answered, and the answer was not the document |
What the listed endpoints declare
How many of the listed endpoints with a readable CapabilityStatement declare each resource and each interaction on it, counted within a category and never across one. Declared, not tested.
- What its Payer Patient Access APIs endpoints declare
- What its Payer Provider Directory APIs endpoints declare
Members reviewed and not listed
Each exclusion records how far the review went, on what date, and where to check it. A review that found nothing is not proof that nothing exists: if one of these plans publishes a base URL we missed, please tell us.
| Plan | Programs | Why it is not listed |
|---|---|---|
| Dean Health Plan by Medica | Wisconsin individual marketplace (HealthCare.gov) | Dean's own site documents a Patient Access API delivered through a third-party platform and publishes no base URL, linking only to that vendor's generic help-center home; no Dean-published Provider Directory endpoint exists. Its parent does publish base URLs, but that document names only the parent and never names Dean, so it cannot be attributed to this row (the plan's own documentation was reviewed, 2026-09-04; source) |
| Medica | Wisconsin individual marketplace (HealthCare.gov) | Medica does publish both base URLs in a document it hosts, but the live file is unreachable to automated clients and the version read was an Internet Archive capture from 2024-07-14. A 2024 snapshot is not evidence about what is published today, so the addresses are held out of the registry until the live document is confirmed current (the plan's own documentation was reviewed, 2026-09-04; source) |
Observational snapshots of public discovery surfaces. Not audits, not compliance determinations, and not statements about care quality. Publishing a base URL to unregistered visitors is not required by any rule this project reads, and a plan that does not is not violating anything; it is only not independently checkable from outside.