NPI Portal NPI Lookup & Verification

William Harris

William Harris is a Attendant Care Provider provider (Technician) practicing in Spring Valley, CA, registered in the NPPES registry with NPI 1124619341 since 2021.

✓ Active NPI ✓ Valid NPI checksum

NPI 1124619341
Entity type Individual (Type 1)
Name William Harris
Sex Male
Practice address 3706 CALAVO DR, Spring Valley, CA, 91977
Phone 6195781014
Enumeration date 2021-01-30
Last updated in NPPES 2021-03-16

Taxonomy & licenses

Taxonomy code Specialty Primary License State
374U00000X Home Health Aide Secondary
3747A0650X Attendant Care Provider Primary
Copy-ready billing details
Provider: William Harris
NPI: 1124619341
Taxonomy: 3747A0650X (Attendant Care Provider)
Address: 3706 CALAVO DR, Spring Valley, CA, 91977

Other providers at this practice address

NPI Name Type Specialty Location
1730795543 Corina Burch Individual Attendant Care Provider Spring Valley, CA
1144811365 Rickeena Kamei Individual Personal Care Attendant Spring Valley, CA

Verify this record

Cross-check NPI 1124619341 against the authoritative CMS record: view William Harris on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is William Harris?
William Harris is registered in NPPES with the primary taxonomy of Attendant Care Provider. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-03-16.