Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Thomas Woodrow Onstott, DDS
Dentist in Springfield, TN · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1679658165
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Registry record
Entity type Individual (Type 1)
Name Dr. Thomas Woodrow Onstott
Credential DDS
Sex Male
Practice address 201 5th Ave W, Springfield, TN, 37172
Phone (615) 384-2659
Fax (615) 384-0672
Enumeration date Oct 25, 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 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.
Other providers at this practice address
Browse all → Thomas W Onstottddspc and Larry E Farris Ddspc Family Dentistry General Practice Dentistry · Springfield, TN NPI 1700875879 Kevin Fisher General Practice Dentistry · Springfield, TN NPI 1154311942 Larry Farris Dentist · Springfield, TN NPI 1134119415 Onstott, Farris, and Fisher Family Dentistry General Practice Dentistry · Springfield, TN NPI 1932341864 Zachary Pennington Dentist · Springfield, TN NPI 1326657925
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.