Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Timothy P Roux, MD

Sleep Medicine (Internal Medicine) Physician in Great Falls, MT · enumerated 2005.

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

National Provider Identifier

1780685644

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Registry record

Entity type Individual (Type 1)

Name Timothy P Roux

Credential MD

Sex Male

Practice address 1401 25th St S, Great Falls, MT, 59405

Phone (406) 731-8888

Fax (406) 731-8876

Enumeration date Aug 2, 2005

Last updated in NPPES Apr 8, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 8403 (MT) Secondary

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License M8403 (MT) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
0107321	Medicaid	MT	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Timothy Roux?

Timothy Roux is registered in NPPES with the primary taxonomy of Sleep Medicine (Internal Medicine) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

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Mary Gray Family Nurse Practitioner · Great Falls, MT NPI 1184625055 Marcella Barker Family Medicine Physician · Great Falls, MT NPI 1265433148 Deborah Dover Neurology Physician · Great Falls, MT NPI 1972504850 Brian Malloy Urology Physician · Great Falls, MT NPI 1902807860 Kelly Timmer Family Nurse Practitioner · Great Falls, MT NPI 1669473526 Bradford Bergman Internal Medicine Physician · Great Falls, MT NPI 1235130113 Thomas Addison Geriatric Medicine (Internal Medicine) Physician · Great Falls, MT NPI 1871594754 Steven Chrzanowski Internal Medicine Physician · Great Falls, MT NPI 1568454692

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-08.