Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ami Renee Halvorson, O.D.
Optometrist in Portland, OR · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1447457452
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Registry record
Entity type Individual (Type 1)
Name Dr. Ami Renee Halvorson
Credential O.D.
Sex Female
Practice address 1331 Nw Lovejoy St Ste 750, Portland, OR, 97209
Phone (503) 535-2883
Fax (503) 535-2887
Enumeration date Jul 2, 2007
Last updated in NPPES Nov 19, 2020
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 |
|---|---|---|---|
| G8934638 | Other | WA | MEDICARE WA |
| G8934639 | Other | WA | MEDICARE WA |
| G8934640 | Other | WA | MEDICARE WA |
| G8934636 | Other | WA | MEDICARE WA |
| 2040883 | Medicaid | WA | - |
| 500609625 | Medicaid | OR | - |
| G8934637 | Other | WA | MEDICARE WA |
| R177569 | Other | OR | MEDICARE OR |
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 specialty is Ami Halvorson?
Ami Halvorson 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.
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
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-19.