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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Yoon H Choi, MD

Internal Medicine Physician in Brockton, MA · enumerated 2006.

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

National Provider Identifier

1174598742

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Registry record

Entity type Individual (Type 1)
Name Mr. Yoon H Choi
Credential MD
Sex Male
Practice address One Pearl Street, Ste 2200, Brockton, MA, 02301
Phone (508) 897-6055
Fax (508) 897-6157
Enumeration date Feb 17, 2006
Last updated in NPPES Jun 24, 2009

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 206555 (MA) 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
0134678 Medicaid MA -

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

How do I verify Yoon Choi's NPI record?
Cross-check NPI 1174598742 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1174598742 active?
Yes, as of the latest NPPES snapshot, NPI 1174598742 is active (record last updated 2009-06-24).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-24.