Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Alexander K Chang, D.O.

Emergency Medicine Physician in Hattiesburg, MS · enumerated 2017.

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

National Provider Identifier

1336688795

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Registry record

Entity type Individual (Type 1)

Name Dr. Alexander K Chang

Credential D.O.

Sex Male

Practice address Hattiesburg, MS, 39402

Phone (601) 268-8000

Enumeration date Feb 17, 2017

Last updated in NPPES Nov 17, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 0102206912 (VA) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 26927 (MS) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 4386 (TN) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

Where does Alexander Chang practice?

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

What is the NPI number for Alexander Chang?

The National Provider Identifier (NPI) for Alexander Chang is 1336688795, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-17.