Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jon C Kolstad, OD PC
Optometrist in Glasgow, MT · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1679620587
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Registry record
Entity type Individual (Type 1)
Name Jon C Kolstad
Credential OD PC
Sex Male
Practice address 630 3rd Ave S, Glasgow, MT, 59230
Phone (406) 228-8641
Fax (406) 228-2094
Enumeration date Jan 4, 2007
Last updated in NPPES Apr 15, 2014
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0000480012 | Medicaid | MT | - |
| 0000482647 | Medicaid | MT | - |
| 0000483565 | 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.
Frequently asked questions
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.
What specialty is Jon Kolstad?
Jon Kolstad is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-15.