Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nicholas Gau, M.D.

Clinical Pathology/Laboratory Medicine Physician in Fargo, ND · enumerated 2015.

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

National Provider Identifier

1821472374

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Registry record

Entity type Individual (Type 1)

Name Dr. Nicholas Gau

Credential M.D.

Sex Male

Practice address 5225 23rd Ave S, Fargo, ND, 58104

Phone (701) 417-2575

Enumeration date Jul 15, 2015

Last updated in NPPES Aug 30, 2021

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 2015020397 (MO) Secondary

207ZP0105X Clinical Pathology/Laboratory Medicine Physician Allopathic & Osteopathic Physicians · License 16395 (ND) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 → Validate an NPI →

Frequently asked questions

What specialty is Nicholas Gau?

Nicholas Gau is registered in NPPES with the primary taxonomy of Clinical Pathology/Laboratory Medicine Physician. 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

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James Fowler Hospitalist Physician · Fargo, ND NPI 1194726596 Stephen Jameson Emergency Medicine Physician · Fargo, ND NPI 1174598825 David Covington Emergency Medicine Physician · Fargo, ND NPI 1083689046 Edgardo Crisostomo Neurology Physician · Fargo, ND NPI 1730141466 Alexander Stein Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Fargo, ND NPI 1861440430 Joleen Finken Hospitalist Physician · Fargo, ND NPI 1427009844 Sean Freyne Diagnostic Radiology Physician · Fargo, ND NPI 1134172869 Gwen Witzel Nurse Practitioner · Fargo, ND NPI 1720026768

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-30.