Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Greg Gilby, D.C.

Chiropractor in Dorchester, MA · enumerated 2006.

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

National Provider Identifier

1538235452

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Registry record

Entity type Individual (Type 1)

Name Dr. Greg Gilby

Credential D.C.

Sex Male

Practice address 653 Columbia Rd, Dorchester, MA, 02125

Phone (617) 825-9100

Fax (617) 825-5006

Enumeration date Nov 24, 2006

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 2761 (MA) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
0038842	Other	MA	NEIGHBORHOOD HEALTH PLAN
701240	Other	MA	ACN GRP-UNITEDHEALTHCARE
Y37017	Other	MA	BLUE CROSS BLUE SHIELD
AA14524	Other	MA	HARVARD PILIGRIM HC
1600451	Medicaid	MA	-

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 Greg Gilby?

Greg Gilby is registered in NPPES with the primary taxonomy of Chiropractor. 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 2007-07-09.