NPI Portal NPI Lookup & Verification

Dr. Thomas Woodrow Onstott, DDS

Dr. Thomas Woodrow Onstott is a Dentist provider (Dentist) practicing in Springfield, TN, registered in the NPPES registry with NPI 1679658165 since 2006. The credential DDS stands for Doctor of Dental Surgery.

✓ Active NPI ✓ Valid NPI checksum

NPI 1679658165
Entity type Individual (Type 1)
Name Dr. Thomas Woodrow Onstott
Credential DDS
Sex Male
Practice address 201 5TH AVE W, Springfield, TN, 37172
Phone 6153842659
Fax 6153840672
Enumeration date 2006-10-25
Last updated in NPPES 2007-07-08

Taxonomy & licenses

Taxonomy code Specialty Primary License State
122300000X Dentist Primary TN2943 TN

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Copy-ready billing details
Provider: Thomas Onstott, DDS
NPI: 1679658165
Taxonomy: 122300000X (Dentist)
Address: 201 5TH AVE W, Springfield, TN, 37172

Other providers at this practice address

NPI Name Type Specialty Location
1700875879 Thomas W Onstottddspc and Larry E Farris Ddspc Family Dentistry Organization General Practice Dentistry Springfield, TN
1154311942 Kevin Fisher Individual General Practice Dentistry Springfield, TN
1134119415 Larry Farris Individual Dentist Springfield, TN
1932341864 Onstott, Farris, and Fisher Family Dentistry Organization General Practice Dentistry Springfield, TN
1326657925 Zachary Pennington Individual Dentist Springfield, TN

Verify this record

Cross-check NPI 1679658165 against the authoritative CMS record: view Dr. Thomas Woodrow Onstott 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

Where does Thomas Onstott practice?
The practice location on file with NPPES is in Springfield, TN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Thomas Onstott?
The National Provider Identifier (NPI) for Thomas Onstott is 1679658165, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.