Joy Williamson
About this NPIWhat this record shows.
NPI 1891587812 is registered to Joy Williamson, a Clinical Exercise Physiologist practising at 3050 S Delaware St Ste 130 in San Mateo, California. Clinical Exercise Physiologist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Joy Williamson has been enumerated in the National Provider Identifier (NPI) registry since 2025.
Your brand here.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Joy Williamson accepts. To confirm in-network status with your specific health plan, contact Joy Williamson directly at (650) 319-8654.
Frequently asked
Yes. NPI 1891587812 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Clinical Exercise Physiologist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (650) 319-8654.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Joy Williamson is a Type-1 individual NPI.