Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Arnt James Ofstad, O.D.
Optometrist in Ronan, MT · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1275563678
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Registry record
Entity type Individual (Type 1)
Name Arnt James Ofstad
Credential O.D.
Sex Male
Practice address 417 Main St Sw, Ronan, MT, 59864
Phone (406) 676-8921
Fax (406) 676-3938
Enumeration date Jul 3, 2006
Last updated in NPPES Oct 26, 2009
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 000026180 | Other | MT | BLUE CROSS BLUE SHIELD |
| 410002038 | Other | MT | RAILROAD MEDICARE |
| 011000634 | Other | MT | DMERC |
| 0632920001 | Other | MT | DMERC |
| 810403250000 | Other | MT | INDIAN HEALTH SERVICE |
| 000002618 | Other | MT | MEDICARE PIN |
| 0489268 | 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
What is the NPI number for Arnt Ofstad?
The National Provider Identifier (NPI) for Arnt Ofstad is 1275563678, a Type 1 (individual) record in the CMS NPPES registry.
Where does Arnt Ofstad practice?
The practice location on file with NPPES is in Ronan, MT. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Arnt James Ofstad, P.C. Optometrist · Ronan, MT NPI 1083644397 Arnt James Ofstad, P.C. Optometrist · Ronan, MT NPI 1104857028 Marcus Simonich Optometrist · Ronan, MT NPI 1497989396 Mission Valley Eye Center, Inc. Optometrist · Ronan, MT NPI 1063764173 Levi Black Optometrist · Ronan, MT NPI 1831768779
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-26.