Relf Optical Ltd
Relf Optical Ltd is a healthcare organization registered as Eyewear Supplier in Duluth, MN, holding Type 2 (organization) NPI 1639115546 since 2006. The authorized official on file is Susan Relf, President.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1639115546 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Relf Optical Ltd |
| Practice address | 5007 MATTERHORN DR, Duluth, MN, 55811 |
| Phone | 2187203553 |
| Fax | 2187869375 |
| Enumeration date | 2006-06-20 |
| Last updated in NPPES | 2010-12-22 |
Authorized official
| Name | Susan Relf |
|---|---|
| Title | President |
| Phone | 2187203553 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 332H00000X | Eyewear Supplier | Primary | — | — |
Copy-ready billing details
Provider: Relf Optical Ltd NPI: 1639115546 Taxonomy: 332H00000X (Eyewear Supplier) Address: 5007 MATTERHORN DR, Duluth, MN, 55811
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1912943846 | Upali Aturaliya | Individual | Ophthalmology Physician | Duluth, MN |
| 1174569727 | Robert Hollenhorst | Individual | Ophthalmology Physician | Duluth, MN |
| 1811925084 | Susan Relf | Individual | Ophthalmology Physician | Duluth, MN |
Verify this record
Cross-check NPI 1639115546 against the authoritative CMS record: view Relf Optical Ltd on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
What is the NPI number for Relf Optical Ltd?
Who is the authorized official for Relf Optical Ltd?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-12-22.