Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Irwin Scott Thompson, MPT
Physical Therapist in Windsor, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1285839175
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Registry record
Entity type Individual (Type 1)
Name Mr. Irwin Scott Thompson
Credential MPT
Sex Male
Practice address 8499 Old Redwood Hwy, Ste. 110, Windsor, CA, 95492
Phone (707) 838-2399
Fax (707) 838-2385
Enumeration date Jun 19, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT32131 (CA) 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.
Frequently asked questions
Is NPI 1285839175 active?
Yes, as of the latest NPPES snapshot, NPI 1285839175 is active (record last updated 2007-07-08).
How do I verify Irwin Thompson's NPI record?
Cross-check NPI 1285839175 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Mitchell Grandi Chiropractor · Windsor, CA NPI 1760463277 Physiotherapy Associates Inc Physical Therapy Clinic/Center · Windsor, CA NPI 1538175856 Hodge Chiropractic & Wellness Chiropractor · Windsor, CA NPI 1699983999 Lisa Stojack Dentist · Windsor, CA NPI 1962662635 Jennifer Price Chiropractor · Windsor, CA NPI 1336488071 Alliance Medical Center, Inc. Clinic/Center · Windsor, CA NPI 1518418862
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.