NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Thomas M. Smith, Psy.D.

Clinical Psychologist in Dixon, CA · enumerated 2010 · authorized official Thomas Smith, Psychologist Owner.

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

National Provider Identifier

1770894123

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Thomas M. Smith, Psy.D.
Practice address 125 N Lincoln St, Suite H, Dixon, CA, 95620
Phone (707) 235-8600
Fax (707) 678-0666
Enumeration date Jun 30, 2010
Last updated in NPPES Apr 22, 2011

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 22707 (CA) Primary

Authorized official

Name Thomas Smith
Title Psychologist Owner
Phone (707) 235-8600

Other identifiers

Identifier Type State Issuer
PSY 22707 Other CA BOARD OF PSYCHOLOGY

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

Who is the authorized official for Thomas M. Smith, Psy.D.?
NPPES lists Thomas Smith (Psychologist Owner) as the authorized official for this organization.
What is the NPI number for Thomas M. Smith, Psy.D.?
The NPI for Thomas M. Smith, Psy.D. is 1770894123, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-22.