Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Joseph Glenn Greer, DDS
Dentist in Oak Ridge, TN · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1144316969
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Registry record
Entity type Individual (Type 1)
Name Dr. Joseph Glenn Greer
Credential DDS
Sex Male
Practice address 140 W Tennessee Ave, Oak Ridge, TN, 37830
Phone (865) 482-1097
Fax (865) 482-5309
Enumeration date Oct 5, 2006
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
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 Joseph Greer practice?
The practice location on file with NPPES is in Oak Ridge, TN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Joseph Greer?
The National Provider Identifier (NPI) for Joseph Greer is 1144316969, 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.