Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Gary Robert Duff, DDS
Dentist in Cambridge, OH · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1497885123
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Gary Robert Duff
Credential DDS
Sex Male
Practice address 1117 Clark St, Cambridge, OH, 43725
Phone (740) 439-1078
Enumeration date Mar 6, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0524516 | Medicaid | OH | - |
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.
Frequently asked questions
Where does Gary Duff practice?
The practice location on file with NPPES is in Cambridge, OH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Gary Duff?
The National Provider Identifier (NPI) for Gary Duff is 1497885123, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.