DATASET · CMS
81,149 enrolled providers.
Medicare enrollment status for providers eligible to order and refer services.
Refreshed monthly · FHIR Practitioner · SLA: Within 24h of monthly CMS release
FHIR Practitioner · sample record
What a record looks like in the API response.
{
"resourceType": "Practitioner",
"id": "prac-pecos-1234567890",
"_source": "cms-pecos-or",
"_methodology": "pecos-or/v1",
"identifier": [{ "system": "http://hl7.org/fhir/sid/us-npi", "value": "1234567890" }]
}Every record carries _source, _methodology, snapshot date, and confidence tier. These fields survive export and API delivery.
Sample query
One cURL call returns a provenanced record.
curl -H "Authorization: Bearer $FONTEUM_KEY" \ "https://api.fonteum.com/fhir/r4/Practitioner?_source=ordering-referring" \ | jq '._source, ._methodology, .meta.tag'
Response includes the FHIR resource body plus Fonteum provenance metadata on every record.
Dataset stats
Dataset: PECOS Ordering & Referring Agency: CMS Category: Provider performance Records: 81,149 enrolled providers Last sync: 2026-05-01 Refresh cadence: Monthly Freshness SLA: Within 24h of monthly CMS release FHIR resource: Practitioner Methodology: /methodology
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