Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Thomas J Clucas, PHD
Psychologist in Mussoula, MT · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1083763643
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Registry record
Entity type Individual (Type 1)
Name Dr. Thomas J Clucas
Credential PHD
Sex Male
Practice address 125 Bank Street, Suite 310, Mussoula, MT, 59802
Phone (406) 549-7325
Fax (406) 549-7559
Enumeration date Jan 10, 2007
Last updated in NPPES Apr 10, 2008
Taxonomy & licenses
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 51981 | Other | MT | 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
Is NPI 1083763643 active?
Yes, as of the latest NPPES snapshot, NPI 1083763643 is active (record last updated 2008-04-10).
How do I verify Thomas Clucas's NPI record?
Cross-check NPI 1083763643 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-10.