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Dr. Thomas Li, MD

Internal Medicine Physician in Denver, CO · enumerated 2005.

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

National Provider Identifier

1023005576

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Registry record

Entity type Individual (Type 1)
Name Dr. Thomas Li
Credential MD
Sex Male
Practice address 4500 E 9th Ave Ste 540, Denver, CO, 80220
Phone (303) 329-8998
Fax (303) 388-1865
Enumeration date Sep 30, 2005
Last updated in NPPES Jan 27, 2022

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 43648 (CO) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
49086251 Medicaid CO -

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 Li?
The National Provider Identifier (NPI) for Thomas Li is 1023005576, a Type 1 (individual) record in the CMS NPPES registry.
Where does Thomas Li practice?
The practice location on file with NPPES is in Denver, CO. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-27.