Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Keewook Chang, MD

Hospitalist Physician in Paoli, PA · enumerated 2019.

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

National Provider Identifier

1356900930

Verified

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Registry record

Entity type Individual (Type 1)

Name Michael Keewook Chang

Credential MD

Sex Male

Practice address 255 W Lancaster Ave, Paoli, PA, 19301

Phone (484) 565-1510

Fax (484) 565-1513

Enumeration date Jun 7, 2019

Last updated in NPPES Aug 1, 2022

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD477395 (PA) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License MD477395 (PA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Michael Chang?

The National Provider Identifier (NPI) for Michael Chang is 1356900930, a Type 1 (individual) record in the CMS NPPES registry.

Where does Michael Chang practice?

The practice location on file with NPPES is in Paoli, PA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-01.