Evidence with a visible trail.
Access OS separates public directory evidence from member reports. Provider cards show the source period and import date when the selected plan has documented provenance.
Current source registry
- New York State Department of Health — 2025 Q3 Provider Network Data
Active plan-network snapshot for the current NY Medicaid plan results: July–September 2025. This is historical directory evidence, not current acceptance confirmation.
- New York State Department of Health — Medicaid Enrolled Provider Listing
Weekly statewide enrollment roster; the active observed file date is 2026-07-27. It supports Medicaid enrollment identity, not membership in a selected managed-care plan.
- New York State Provider & Health Plan Look-Up
Current state lookup for checking a provider and plan directly; last refreshed 2026-07-09. Access OS links each provider's NPI to this lookup, preserves its dated bulk snapshot separately, and does not present the lookup as a completed acceptance check.
- CMS National Plan and Provider Enumeration System
Provider identity and public registry fields used for directory enrichment.
- MetroPlus machine-readable file
Public network file dated 2023-10-06; currently used only where plan mapping is explicit.
- Community reports
Plan-scoped reports from people who tried to use a provider. These are evidence of an experience, not official confirmation.
Historical and fallback records
The database may retain older network sources for records that are not covered by the active Medicaid snapshot, including the 2021 Q1 NYS Medicaid/CHP file, 2020 Q4 commercial data, and the 2023 MetroPlus machine-readable file. Older records are labeled by their source period; they are not silently upgraded to current plan evidence.
How to read source labels
Data period is the vintage supplied by the source. Imported is when Access OS loaded that source. Neither means that a provider personally confirmed the listing today. Verified is reserved for a real member or provider report.
Location enrichment
Distance and New York subway proximity use geocoded coordinates from Nominatim and station data maintained in the application. These convenience estimates are not travel guarantees.