Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory Michael Kirby

Physical Therapist in Westminster, MD · enumerated 2010.

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

National Provider Identifier

1821307158

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Registry record

Entity type Individual (Type 1)

Name Gregory Michael Kirby

Sex Male

Practice address 844 Washington Rd, Suite 101, Westminster, MD, 21157

Phone (410) 876-5600

Fax (410) 876-1623

Enumeration date Oct 5, 2010

Last updated in NPPES Nov 18, 2011

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 17947 (MD) Primary

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 Kirby?

Gregory Kirby is registered in NPPES with the primary taxonomy of Physical Therapist. 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 2011-11-18.