NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Thomas W Lee MD Inc

Obstetrics & Gynecology Physician in Upland, CA · enumerated 2006 · authorized official Thomas Lee, President & Owner.

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

National Provider Identifier

1255406252

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Thomas W Lee MD Inc
Practice address 930 E Foothill Blvd, Suite 2, Upland, CA, 91786
Phone (909) 946-2277
Fax (909) 920-0765
Enumeration date Nov 22, 2006
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Thomas Lee
Title President & Owner
Phone (909) 946-2277

Other identifiers

Identifier Type State Issuer
GR 0101740 Medicaid CA -
1817836 Other CA PIN

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

What is the NPI number for Thomas W Lee MD Inc?
The NPI for Thomas W Lee MD Inc is 1255406252, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Thomas W Lee MD Inc?
NPPES lists Thomas Lee (President & Owner) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.