Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Judith L Johnson, MD
Specialist in Duluth, MN · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033188347
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Registry record
Entity type Individual (Type 1)
Name Judith L Johnson
Credential MD
Sex Female
Practice address 1000 E 1st St, Suite Ll, Duluth, MN, 55805
Phone (218) 722-5629
Fax (218) 722-5148
Enumeration date Mar 17, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 01017175 | Other | - | PREFERRED ONE |
| 31B35JO | Other | MN | BLUE CROSS BLUE SHIELD |
| A011 | Other | - | TRICARE |
| 199824200 | Medicaid | MN | - |
| 123030 | Other | MN | UCARE |
| 32459800 | Medicaid | WI | - |
| HP26562 | Other | MN | HEALTH PARTNERS |
| 0708040 | 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
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.
What specialty is Judith Johnson?
Judith Johnson is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.