NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James Douglas Watson, RT1424511225

Addiction (Substance Use Disorder) Counselor in San Luis Obispo, CA · enumerated 2026.

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

National Provider Identifier

1427907898

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name James Douglas Watson
Credential RT1424511225
Sex Male
Practice address 34 Prado Rd, San Luis Obispo, CA, 93401
Phone (805) 457-3331
Fax (805) 457-3332
Enumeration date Jan 27, 2026
Last updated in NPPES Jan 27, 2026

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License RT1424511225 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify James Watson's NPI record?
Cross-check NPI 1427907898 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1427907898 active?
Yes, as of the latest NPPES snapshot, NPI 1427907898 is active (record last updated 2026-01-27).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-27.