Joe Wisniewski
Joe Wisniewski works on healthcare price transparency and provider identity. The question underneath most of his work is simple: which NPIs, tax IDs and CCNs belong to the same organization, who owns that organization, and what the published rates actually say once you can line them up.
He got his start at Turquoise Health in 2021. At the time, barely 1 in 4 hospitals had posted rates. Today, 99% of all hospitals have posted their data online. He is building Luhn Health, a provider record that fuses scattered IDs into one record you can check and follows the owners up the chain. He also supports rural hospitals with price transparency compliance and underpayments work.
Provider IDs
A hospital or practice bills under many identifiers at once: NPIs, CCNs, tax IDs, state licenses, payer-assigned numbers. They rarely agree, and no public file ties them together. Joe Wisniewski's work resolves those provider IDs to one organization, so a rate, a claim or a directory entry can be matched to the entity that actually delivered the care.
National Provider Directory
CMS is replacing NPPES and PECOS with a National Provider Directory. Joe Wisniewski co-signed the August 2026 joint comment on the CY 2027 OPPS rule asking CMS to give off-campus hospital departments their own NPIs, carry those identifiers into the price transparency files, and publish a public crosswalk from each organizational NPI to its consumer-facing name, location and parent.
Price Transparency
From the 2021 hospital rule through the 2025 and 2026 changes, Joe Wisniewski has written about, spoken on and commented to CMS about hospital price transparency: machine-readable files, the validator, enforcement, estimated and median allowed amounts, and what hospitals and employers can do with the data.
Transparency in Coverage
The payer side of the same law. Joe Wisniewski co-authored Turquoise Health's comments on the Transparency in Coverage schema and enforcement changes, the prescription drug file, and the accuracy and completeness RFI, and has presented on how payer machine-readable files are used in contract modeling and negotiations.