Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
William Flaherty Hayes
Massage Therapist in Madison, WI · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1003392366
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name William Flaherty Hayes
Sex Male
Practice address 515 Junction Rd Ste 2300, Madison, WI, 53717
Phone (608) 441-9355
Enumeration date Jul 19, 2018
Last updated in NPPES Jul 19, 2018
Taxonomy & licenses
225700000X Massage Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 4716-146 (WI) Primary
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for William Hayes?
The National Provider Identifier (NPI) for William Hayes is 1003392366, a Type 1 (individual) record in the CMS NPPES registry.
Where does William Hayes practice?
The practice location on file with NPPES is in Madison, WI. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-07-19.