NPI Portal NPI Lookup & Verification

Mr. Michael James Thomas, MSW

Mr. Michael James Thomas is a Social Worker provider (Social Worker) practicing in Berkeley, CA, registered in the NPPES registry with NPI 1346307584 since 2007.

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NPI 1346307584
Entity type Individual (Type 1)
Name Mr. Michael James Thomas
Credential MSW
Sex Male
Practice address 1 BOLIVAR DR, Berkeley, CA, 94710
Phone 5106491177
Fax 5106490322
Enumeration date 2007-01-03
Last updated in NPPES 2007-07-08

Taxonomy & licenses

Taxonomy code Specialty Primary License State
104100000X Social Worker Primary
Copy-ready billing details
Provider: Michael Thomas, MSW
NPI: 1346307584
Taxonomy: 104100000X (Social Worker)
Address: 1 BOLIVAR DR, Berkeley, CA, 94710

Other providers at this practice address

NPI Name Type Specialty Location
1295776615 Gerard Chase Individual Psychiatry Physician Berkeley, CA
1912054701 La Cheim Inc. Organization Emotionally Disturbed Childrens' Residential Treatment Facility Berkeley, CA
1710034855 La Cheim School Inc. Organization Community/Behavioral Health Agency Berkeley, CA

Verify this record

Cross-check NPI 1346307584 against the authoritative CMS record: view Mr. Michael James Thomas 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

What specialty is Michael Thomas?
Michael Thomas is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.