Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Thomas C Mack, D.C.
Orthopedic Chiropractor in Corry, PA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1689644726
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 155842 | Other | PA | HEALTH AMERICA |
| 456615 | Other | PA | BLUE CROSS/BLUE SHIELD |
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
What is the NPI number for Thomas Mack?
Where does Thomas Mack practice?
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.