Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Changsoo Medical Group

Internal Medicine Physician in Buena Park, CA · enumerated 2022 · authorized official Grace Yoon, Office Manger.

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

National Provider Identifier

1790496107

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Registry record

Entity type Organization (Type 2)

Legal business name Changsoo Medical Group

Practice address 5832 Beach Blvd Unit 214, Buena Park, CA, 90621

Phone (714) 523-7575

Fax (714) 523-7585

Enumeration date Dec 6, 2022

Last updated in NPPES May 5, 2025

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Grace Yoon

Title Office Manger

Phone (562) 335-0008

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-05-05. Verify at npiregistry.cms.hhs.gov.

Where is Changsoo Medical Group located?

The practice location on file with NPPES is in Buena Park, CA.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-05.