Dr. Gregory K Mellon, D.C.,D.A.B.C.O.

Dr. Gregory K Mellon is a Chiropractor provider (Chiropractor) practicing in Delaware, OH, registered in the NPPES registry with NPI 1932135894 since 2006. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1932135894
Entity type	Individual (Type 1)
Name	Dr. Gregory K Mellon
Credential	D.C.,D.A.B.C.O.
Sex	Male
Practice address	Delaware, OH, 43015
Phone	7403633330
Fax	7403692124
Enumeration date	2006-06-23
Last updated in NPPES	2011-10-03

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
111N00000X	Chiropractor	Primary	1000	OH
111N00000X	Chiropractor	Secondary	2933	MI

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

Other identifiers

Identifier	Type	State	Issuer
311187277	Other	OH	FIN

Copy-ready billing details

Provider: Gregory Mellon, D.C.,D.A.B.C.O.
NPI: 1932135894
Taxonomy: 111N00000X (Chiropractor)
Address: Delaware, OH, 43015

Verify this record

Cross-check NPI 1932135894 against the authoritative CMS record: view Dr. Gregory K Mellon on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What is the NPI number for Gregory Mellon?

The National Provider Identifier (NPI) for Gregory Mellon is 1932135894, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gregory Mellon practice?

The practice location on file with NPPES is in Delaware, OH. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2011-10-03.