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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Carol J. Johnson, M.D.

Geriatric Medicine (Family Medicine) Physician in Fargo, ND · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1679535991

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Registry record

Entity type Individual (Type 1)
Name Dr. Carol J. Johnson
Credential M.D.
Sex Female
Practice address 1702 University Dr S, Fargo, ND, 58103
Enumeration date Apr 3, 2006
Last updated in NPPES Oct 20, 2021

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 45735 (MN) Secondary
207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License 45749 (MN) Secondary
207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License 15917 (ND) Primary
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
HP38799 Other MN HEALTH PARTNERS
P00047499 Other MN RAILROAD MEDICARE
66-06190 Other MN MEDICA URGENT CARE
072K4J0 Other MN BLUE CROSS
171680 Other MN UCARE MINNESOTA
1882619 Other MN AMERICA'S PPO
2110090 Other MN FIRST HEALTH GROUP
34407600 Medicaid WI -
607632700 Other MN GROUP HEALTH EAU CLAIRE
NA9141035345 Other MN PREFERRED ONE
01-18712 Other MN MEDICA
607632700 Medicaid MN -

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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Frequently asked questions

Is NPI 1679535991 active?
Yes, as of the latest NPPES snapshot, NPI 1679535991 is active (record last updated 2021-10-20).
How do I verify Carol Johnson's NPI record?
Cross-check NPI 1679535991 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-20.