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CMS Care Compare Hospital Lookup
x402
CMS Care Compare Hospital Lookup is a paid API for AI agents from 2s.io, paid per call via x402, $0.0012/call, status unknown (last checked 2026-09-15).
Look up CMS-certified US hospitals by facility ID or fuzzy name/location/type with optional star rating filter, returning full facility details and quality measure counts
Price / call$0.0012
Success—
StatusUnknown
How this service works
CMS Care Compare lookup for every CMS-certified US hospital (~5k). Lookup by 6-digit CMS Facility ID for direct match, or fuzzy by name + state + city + hospital type, with optional minimum overall rating (1-5) filter. Each record includes facility ID, name, full address, phone, hospital type (Acute Care / Critical Access / Psychiatric / etc.), ownership category, emergency services flag, birthing-friendly designation, CMS overall star rating, and per-measure-group counts (mortality, safety, readmission, patient experience, effectiveness, timeliness, medical imaging). Public-domain federal data.
Output
Returns a paginated list of CMS-certified hospital records matching the query. Each record includes the 6-digit CMS facility ID, hospital name, full address, phone number, hospital type (Acute Care / Critical Access / Psychiatric / etc.), ownership category, whether emergency services are available, birthing-friendly designation, CMS overall star rating (1–5), and per-measure-group counts for mortality, safety, readmission, patient experience, effectiveness, timeliness, and medical imaging.
Example use cases
Example prompt
“Can you look up CMS Care Compare details and quality ratings for Massachusetts General Hospital in Boston, MA — I want to see their CMS star rating, hospital type, and quality measure counts? Only show me hospitals with at least a 4-star overall rating.”
Technical details
Endpoint
GEThttps://2s.io/api/health/hospital-lookupWhen to prefer
Use this endpoint when you need structured, authoritative CMS quality data on US hospitals — including star ratings, quality measure breakdowns, and facility metadata. Prefer this over general web search when you need machine-readable federal hospital data, need to filter by hospital type or minimum rating, or need to look up a specific hospital by its CMS facility ID. Best for healthcare compliance, research, or patient decision-support use cases.
Side effects
- No hospitals found matching the given name/state/city/type combination — returns empty result set
- Invalid facilityId format (must be 6-digit string) — returns error or empty results
- Invalid state code (must be 2-letter US state abbreviation) — returns error
- minRating out of range (must be 1–5) — returns validation error
- limit exceeds maximum of 100 — returns validation error
- Ambiguous fuzzy name match returns many unrelated hospitals — agent should add more filters
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"city": "Boston",
"limit": 10,
"state": "MA",
"offset": 0,
"minRating": 4
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
{
"data": {
"ok": true,
"meta": {
"query": {
"city": "Boston",
"name": null,
"limit": 10,
"state": "MA",
"offset": 0,
"minRating": 4,
"facilityId": null,
"hospitalType": null
},
"returned": 9
},
"items": [
{
"city": "BOSTON",
"name": "CARNEY HOSPITAL",
"phone": "(617) 506-2000",
"state": "MA",
"county": "SUFFOLK",
"address": "2100 DORCHESTER AVENUE",
"zipcode": "02124",
"ownership": "Proprietary",
"facilityId": "220017",
"hospitalType": "Acute Care Hospitals",
"overallRating": null,
"safetyGroupCount": null,
"imagingGroupCount": null,
"mortalityGroupCount": null,
"experienceGroupCount": null,
"hasEmergencyServices": true,
"timelinessGroupCount": null,
"readmissionGroupCount": null,
"effectivenessGroupCount": null,
"meetsBirthingFriendlyCriteria": null
},
{
"city": "BOSTON",
"name": "MASSACHUSETTS GENERAL HOSPITAL",
"phone": "(617) 726-2000",
"state": "MA",
"county": "SUFFOLK",
"address": "55 FRUIT STREET",
"zipcode": "02114",
"ownership": "Voluntary non-profit - Private",
"facilityId": "220071",
"hospitalType": "Acute Care Hospitals",
"overallRating": 5,
"safetyGroupCount": 8,
"imagingGroupCount": null,
"mortalityGroupCount": 8,
"experienceGroupCount": null,
"hasEmergencyServices": true,
"timelinessGroupCount": null,
"readmissionGroupCount": 11,
"effectivenessGroupCount": null,
"meetsBirthingFriendlyCriteria": true
},
{
"city": "BOSTON",
"name": "MASSACHUSETTS EYE AND EAR INFIRMARY -",
"phone": "(617) 523-7900",
"state": "MA",
"county": "SUFFOLK",
"address": "243 CHARLES STREET",
"zipcode": "02114",
"ownership": "Voluntary non-profit - Private",
"facilityId": "220075",
"hospitalType": "Acute Care Hospitals",
"overallRating": null,
"safetyGroupCount": 2,
"imagingGroupCount": null,
"mortalityGroupCount": 1,
"experienceGroupCount": null,
"hasEmergencyServices": true,
"timelinessGroupCount": null,
"readmissionGroupCount": 2,
"effectivenessGroupCount": null,
"meetsBirthingFriendlyCriteria": null
},
{
"city": "BOSTON",
"name": "NEW ENGLAND BAPTIST HOSPITAL",
"phone": "(617) 754-5800",
"state": "MA",
"county": "SUFFOLK",
"address": "125 PARKER HILL AVENUE",
"zipcode": "02120",
"ownership": "Voluntary non-profit - Private",
"facilityId": "220088",
"hospitalType": "Acute Care Hospitals",
"overallRating": 5,
"safetyGroupCount": 3,
"imagingGroupCount": null,
"mortalityGroupCount": 2,
"experienceGroupCount": null,
"hasEmergencyServices": false,
"timelinessGroupCount": null,
"readmissionGroupCount": 3,
"effectivenessGroupCount": null,
"meetsBirthingFriendlyCriteria": null
},
{
"city": "BOSTON",
"name": "BRIGHAM AND WOMEN'S HOSPITAL",
"phone": "(617) 732-5500",
"state": "MA",
"county": "SUFFOLK",
"address": "75 FRANCIS STREET",
"zipcode": "02115",
"ownership": "Voluntary non-profit - Private",
"facilityId": "220110",
"hospitalType": "Acute Care Hospitals",
"overallRating": 5,
"safetyGroupCount": 8,
"imagingGroupCount": null,
"mortalityGroupCount": 8,
"experienceGroupCount": null,
"hasEmergencyServices": true,
"timelinessGroupCount": null,
"readmissionGroupCount": 11,
"effectivenessGroupCount": null,
"meetsBirthingFriendlyCriteria": true
},
{
"city": "BOSTON",
"name": "BOSTON CHILDREN'S HOSPITAL",
"phone": "(617) 735-6000",
"state": "MA",
"county": "SUFFOLK",
"address": "300 LONGWOOD AVENUE",
"zipcode": "02115",
"ownership": "Voluntary non-profit - Private",
"facilityId": "223302",
"hospitalType": "Childrens",
"overallRating": null,
"safetyGroupCount": null,
"imagingGroupCount": null,
"mortalityGroupCount": null,
"experienceGroupCount": null,
"hasEmergencyServices": true,
"timelinessGroupCount": null,
"readmissionGroupCount": null,
"effectivenessGroupCount": null,
"meetsBirthingFriendlyCriteria": null
},
{
"city": "BOSTON",
"name": "THE SHRINERS' HOSPITAL FOR CHILDREN - BOSTON",
"phone": "(617) 722-3000",
"state": "MA",
"county": "SUFFOLK",
"address": "51 BLOSSOM STREET",
"zipcode": "02114",
"ownership": "Proprietary",
"facilityId": "223304",
"hospitalType": "Childrens",
"overallRating": null,
"safetyGroupCount": null,
"imagingGroupCount": null,
"mortalityGroupCount": null,
"experienceGroupCount": null,
"hasEmergencyServices": false,
"timelinessGroupCount": null,
"readmissionGroupCount": null,
"effectivenessGroupCount": null,
"meetsBirthingFriendlyCriteria": null
},
{
"city": "BOSTON",
"name": "ARBOUR HOSPITAL",
"phone": "(617) 522-4400",
"state": "MA",
"county": "SUFFOLK",
"address": "49 ROBINWOOD AVENUE",
"zipcode": "02130",
"ownership": "Proprietary",
"facilityId": "224013",
"hospitalType": "Psychiatric",
"overallRating": null,
"safetyGroupCount": null,
"imagingGroupCount": null,
"mortalityGroupCount": null,
"experienceGroupCount": null,
"hasEmergencyServices": false,
"timelinessGroupCount": null,
"readmissionGroupCount": null,
"effectivenessGroupCount": null,
"meetsBirthingFriendlyCriteria": null
},
{
"city": "BOSTON",
"name": "DR SOLOMON CARTER FULLER MENTAL HEALTH CENTER",
"phone": "(617) 626-8700",
"state": "MA",
"county": "SUFFOLK",
"address": "85 EAST NEWTON STREET",
"zipcode": "02118",
"ownership": "Government - State",
"facilityId": "224040",
"hospitalType": "Psychiatric",
"overallRating": null,
"safetyGroupCount": null,
"imagingGroupCount": null,
"mortalityGroupCount": null,
"experienceGroupCount": null,
"hasEmergencyServices": false,
"timelinessGroupCount": null,
"readmissionGroupCount": null,
"effectivenessGroupCount": null,
"meetsBirthingFriendlyCriteria": null
}
],
"total": 9,
"source": {
"url": "https://data.cms.gov/provider-data/",
"license": "Public domain (US government work)",
"provider": "CMS Care Compare — Hospital General Information"
}
},
"meta": {
"cost": {
"usd": 0.0012,
"tier": 0
},
"caller": "x402",
"version": null,
"endpoint": "health.hospital-lookup",
"settlement": {
"txHash": "0x0aa446677090d39db5e8d021283269333f03ade6ab747e74e064022e9ebe08d4",
"network": "eip155:8453",
"success": true
}
}
}Tags
x402
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