Practice Affiliations
500+
Networks across PPOs, HMOs & ASOs
1M+
Practice IDs
4M+
Provider IDs
How we build the graph
A three-step process combines multiple data sources to produce the most accurate provider-to-practice-to-payer mapping available.
01
Data Collection
Serif Health aggregates provider directory information from multiple sources including commercial payer networks, hospital systems, and proprietary datasets. This comprehensive approach maps the complex relationships between healthcare payers, practices, and individual providers across 500+ PPOs, HMOs, ASOs, and Exchange Plans — encompassing over 1 million practice IDs and 4 million provider IDs.
02
Network Mapping
Our algorithms analyze the relationships between providers, practices, and payers to create accurate affiliation maps. We identify which providers work at which practices, how practices relate to larger health systems, and which networks each provider participates in across different payer contracts.
03
Continuous Updates
Provider affiliations and network participation change frequently. Our data is reviewed monthly to capture new provider relationships, practice acquisitions, network changes, and credentialing updates — ensuring organizations have the most current information for in-network status checks, eligibility verification, and network adequacy assessments.