Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Damon J Choi, M.D.

Hospitalist Physician in Pasadena, CA · enumerated 2011.

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

National Provider Identifier

1033405493

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Registry record

Entity type Individual (Type 1)

Name Damon J Choi

Credential M.D.

Sex Male

Practice address 100 W California Blvd, Pasadena, CA, 91105

Phone (626) 352-1444

Enumeration date Jun 23, 2011

Last updated in NPPES Jul 8, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 258026 (MA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 151382 (CA) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 258026 (MA) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License A151382 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

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Frequently asked questions

Is NPI 1033405493 active?

Yes, as of the latest NPPES snapshot, NPI 1033405493 is active (record last updated 2025-07-08).

How do I verify Damon Choi's NPI record?

Cross-check NPI 1033405493 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-08.