Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Thomas L. Opsahl, DMD
Dentist in Rutland, VT · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1043230899
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Registry record
Entity type Individual (Type 1)
Name Dr. Thomas L. Opsahl
Credential DMD
Sex Male
Practice address 4 General Wing Rd, Rutland, VT, 05701
Phone (802) 775-0819
Fax (802) 775-1487
Enumeration date Jul 21, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1000354 | Medicaid | VT | - |
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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Thomas Opsahl?
Thomas Opsahl is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Robert Kolodzej Dentist · Rutland, VT NPI 1881629632 Drake Battista Dentist · Rutland, VT NPI 1932124260 Family Dental Associates General Practice Dentistry · Rutland, VT NPI 1487853644 Jonathan E Mason Dmd PC General Practice Dentistry · Rutland, VT NPI 1215679568 Alexander Perfitt Student in an Organized Health Care Education/Training Program · Rutland, VT NPI 1285496612
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.