NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Thomas Joseph Stack, DDS

Dentist in Ballston Lake, NY · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1356363741

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Registry record

Entity type Individual (Type 1)
Name Dr. Thomas Joseph Stack
Credential DDS
Sex Male
Practice address Ballston Lake, NY, 12019
Enumeration date Jul 24, 2006
Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

122300000X Dentist Dental Providers · License 038153 (NY) Primary
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.

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Frequently asked questions

Where does Thomas Stack practice?
The practice location on file with NPPES is in Ballston Lake, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Thomas Stack?
The National Provider Identifier (NPI) for Thomas Stack is 1356363741, 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.