William Castillo
About this NPIWhat this record shows.
NPI 1841898715 is registered to William Castillo, a Student in an Organized Health Care Education/Training Program practising at 762 Cypress St in San Dimas, California. Student in an Organized Health Care Education/Training Program is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. William Castillo has been enumerated in the National Provider Identifier (NPI) registry since 2020.
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 William Castillo accepts. To confirm in-network status with your specific health plan, contact William Castillo directly at (909) 599-1227.
Frequently asked
Yes. NPI 1841898715 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Student in an Organized Health Care Education/Training Program 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 (909) 599-1227.
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. William Castillo is a Type-1 individual NPI.