Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Robert E Arnsdorf, MD
Physical Medicine & Rehabilitation Physician in Eugene, OR · enumerated 2005 · practices at Rehabilitation Medicine Associates of Eugene-Springfield PC.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1184616401
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 151320 | Medicaid | OR | - |
| 8922561 | Other | WA | CRIME VICTIMS |
| 8230864 | Medicaid | WA | - |
| 0308675 | Other | WA | WASHINGTON L&I |
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.
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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-03.