Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael J Hammett, MD

Otolaryngology Physician in Hattiesburg, MS · enumerated 2006 · practices at Hattiesburg Clinic PA.

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

National Provider Identifier

1396757910

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Registry record

Entity type Individual (Type 1)

Name Michael J Hammett

Credential MD

Sex Male

Practice address 1605 S 28th Ave, Hattiesburg, MS, 39402

Phone (601) 264-5684

Fax (601) 264-0231

Enumeration date Aug 12, 2006

Last updated in NPPES Jul 20, 2020

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 18426 (MS) 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
1995100	Medicaid	LA	-
640507572XF	Other	MS	AMERICAN ADMIN GROUP
02284820	Medicaid	MS	-

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 Michael Hammett's NPI record?

Cross-check NPI 1396757910 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1396757910 active?

Yes, as of the latest NPPES snapshot, NPI 1396757910 is active (record last updated 2020-07-20).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-20.