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Data Sources

VeriflowAPI aggregates and normalizes data from multiple authoritative government sources. This page explains what each source covers, how frequently data is refreshed, and what happens when a source is temporarily unavailable.

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Federal Sources

These sources are checked on every verification request regardless of state.

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NPPES NPI Registry

The National Plan and Provider Enumeration System is the federal database of all healthcare providers who have been assigned a National Provider Identifier. The NPPES database is the foundation of every verification. Even when a state board is temporarily unavailable, NPI data ensures you always receive a meaningful baseline response.

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OIG Exclusion List

The Office of Inspector General maintains a list of individuals and entities excluded from participation in federal healthcare programs (Medicare, Medicaid, etc.). Hiring or contracting with an excluded provider can result in significant civil penalties. If oig_excluded is true, the provider must not be employed or contracted by any entity receiving federal healthcare funding. This is a hard disqualifier in most onboarding workflows.

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State Sources — Live

Deep state license data is available for seven states today. Texas is a live per-query scrape; the rest are full daily mirrors. Any other state returns status: "unsupported_state" on live keys — we never fabricate data we don’t have.

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Texas Medical Board

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Florida Department of Health (MQA)

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Illinois IDFPR

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Washington Department of Health

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Colorado DORA

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Connecticut DCP

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Alabama Board of Medical Examiners

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What happens when a source is down

Government websites experience downtime — planned maintenance, traffic spikes, infrastructure migrations. VeriflowAPI is architected to handle this gracefully. When a source is unavailable during a request:

1. VeriflowAPI serves the most recent cached data for that source
2. The response includes "source_live": false and "cached": true
3. The cache_expires_at field tells you when fresh data will next be fetched
4. Our monitoring system detects the outage and begins retry attempts automatically

This approach ensures our 99.9% uptime SLA holds even when individual government sites experience extended downtime. You can always check current source availability at status.veriflowapi.com.

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Remaining states

For states not yet mirrored — including California and New York, which are on our roadmap — VeriflowAPI returns NPPES and OIG data, which covers federal credential status nationwide. State-level license status for additional states is added based on demand. If you have an urgent need for a specific state, email support@veriflowapi.com — we prioritize state additions based on customer demand.

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Coming soon