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Dr. Gregory W Kirwan, DO

Orthopaedic Surgery Physician in Egg Harbor Twp, NJ · enumerated 2008.

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

National Provider Identifier

1932373818

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Registry record

Entity type Individual (Type 1)
Name Dr. Gregory W Kirwan
Credential DO
Sex Male
Practice address 2500 English Creek Ave, Bldg 1300, Egg Harbor Twp, NJ, 08234
Phone (800) 321-9999
Fax (267) 479-1321
Enumeration date Apr 22, 2008
Last updated in NPPES Mar 18, 2026

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 25MB12567400 (NJ) Primary
207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License OS014832 (PA) Secondary
207XX0004X Orthopaedic Foot and Ankle Surgery Physician Allopathic & Osteopathic Physicians · License 25MB12567400 (NJ) Secondary
207XX0004X Orthopaedic Foot and Ankle Surgery Physician Allopathic & Osteopathic Physicians · License OS014832 (PA) 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.

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Frequently asked questions

What specialty is Gregory Kirwan?
Gregory Kirwan is registered in NPPES with the primary taxonomy of Orthopaedic Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-18.