Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Michael H. Hennessey, MD, PA

Obstetrics & Gynecology Physician in Fort Walton Beach, FL · enumerated 2008 · authorized official Christi Armbrister, Practice Manager.

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

National Provider Identifier

1447403134

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Registry record

Entity type Organization (Type 2)

Legal business name Michael H. Hennessey, MD, PA

Practice address 907 Mar Walt Dr, Suite 2024, Fort Walton Beach, FL, 32547

Phone (850) 243-2229

Fax (850) 862-0124

Enumeration date Oct 28, 2008

Last updated in NPPES Oct 28, 2008

Taxonomy & classification

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License ME83428 (FL) Primary

Authorized official

Name Christi Armbrister

Title Practice Manager

Phone (850) 243-2229

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 is Michael H. Hennessey, MD, PA located?

The practice location on file with NPPES is in Fort Walton Beach, FL.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-10-28. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-28.