Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Teresa F Theobald, O.D.
Optometrist in Duluth, MN · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1902872518
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Registry record
Entity type Individual (Type 1)
Name Teresa F Theobald
Credential O.D.
Sex Female
Practice address 3308 W Arrowhead Rd, Duluth, MN, 55811
Phone (218) 727-6400
Fax (218) 464-4277
Enumeration date Feb 23, 2006
Last updated in NPPES Nov 24, 2015
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 |
|---|---|---|---|
| 410036000 | Other | MN | RAILROAD MEDICARE |
| 6C247TH | Other | FM | BCBS & ATRIUM |
| 6C247TH | Other | MN | FIRST PLAN MINNESOTA |
| 114513 | Other | MN | UCARE |
| 850527600 | Medicaid | MN | - |
| 897821009672 | Other | MN | PREFERRED ONE |
| 2207595 | Other | MN | MEDICA |
| A62871009672 | Other | MN | PREFERRED ONE |
| 2203073 | Other | MN | MEDICA |
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 Teresa Theobald?
Teresa Theobald 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 2015-11-24.