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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marcus F Keep, MD

Neurological Surgery Physician in Fargo, ND · enumerated 2006.

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

National Provider Identifier

1164438743

Verified

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Registry record

Entity type Individual (Type 1)
Name Marcus F Keep
Credential MD
Sex Male
Practice address 700 1st Ave S, Fargo, ND, 58103
Phone (701) 234-4036
Enumeration date Aug 1, 2006
Last updated in NPPES Oct 7, 2022

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 20020410 (NM) Secondary
207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License MD423288 (PA) Secondary
207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 8573 (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
56132832 Other CO MEDICAID GROUP NUMBER
83151559 Medicaid CO -
36132832 Other CO MEDICAID PRACTICE NUMBER
70259526 Other CO MEDICAID PRACTICE NUMBER
348308 Other CO MEDICARE GROUP PTAN NUMBE
1023760700001 Medicaid PA -
C810213 Other CO MEDICARE GROUP NUMBER

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 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 Marcus Keep?
Marcus Keep is registered in NPPES with the primary taxonomy of Neurological Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-07.