Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Timothy Steven Visscher, MD
Psychiatry Physician in Dillon, MT · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164433090
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Registry record
Entity type Individual (Type 1)
Name Dr. Timothy Steven Visscher
Credential MD
Sex Male
Practice address 234 E Reeder St, Dillon, MT, 59725
Phone (406) 532-8400
Fax (406) 543-9316
Enumeration date Aug 9, 2006
Last updated in NPPES Feb 16, 2012
Taxonomy & licenses
2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License 5145 (MT) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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.
Frequently asked questions
What is the NPI number for Timothy Visscher?
The National Provider Identifier (NPI) for Timothy Visscher is 1164433090, a Type 1 (individual) record in the CMS NPPES registry.
Where does Timothy Visscher practice?
The practice location on file with NPPES is in Dillon, MT. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-16.