Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. William Eugene Harris

Perfusionist in San Jose, CA · enumerated 2022.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1609505858

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Registry record

Entity type Individual (Type 1)

Name Mr. William Eugene Harris

Sex Male

Practice address 751 S Bascom Ave, San Jose, CA, 95128

Phone (504) 220-6115

Enumeration date Jun 5, 2022

Last updated in NPPES Jun 5, 2022

Taxonomy & licenses

242T00000X Perfusionist Technologists, Technicians & Other Technical Service Providers 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for William Harris?

The National Provider Identifier (NPI) for William Harris is 1609505858, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Harris practice?

The practice location on file with NPPES is in San Jose, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-05.