NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William George Reagan, M.A., SLP,CCC

Speech-Language Pathologist in Ventura, CA · enumerated 2007.

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

National Provider Identifier

1235357880

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name William George Reagan
Credential M.A., SLP,CCC
Sex Male
Practice address 10730 Henderson Rd, Ventura, CA, 93004
Phone (805) 647-1141
Fax (805) 647-1148
Enumeration date Apr 20, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License CA#3064 (CA) Primary
SLP · Speech-Language Pathologist: A licensed clinician treating speech, language, and swallowing disorders. About the SLP credential

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

How do I verify William Reagan's NPI record?
Cross-check NPI 1235357880 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1235357880 active?
Yes, as of the latest NPPES snapshot, NPI 1235357880 is active (record last updated 2007-07-08).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.