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Dr. Mark W Hofer, MD

Cytopathology Physician in Eau Claire, WI · enumerated 2006 · practices at Chippewa Valley Emergency Care.

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

National Provider Identifier

1134177538

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark W Hofer
Credential MD
Sex Male
Practice address 900 West Clairemont Ave, Eau Claire, WI, 54701
Phone (715) 839-4121
Enumeration date May 5, 2006
Last updated in NPPES Dec 20, 2021

Taxonomy & licenses

207ZB0001X Blood Banking & Transfusion Medicine Physician Allopathic & Osteopathic Physicians · License 27910 (WI) Secondary
207ZD0900X Dermatopathology (Pathology) Physician Allopathic & Osteopathic Physicians · License 27910 (WI) Secondary
207ZF0201X Forensic Pathology Physician Allopathic & Osteopathic Physicians · License 27910 (WI) Secondary
207ZH0000X Hematology (Pathology) Physician Allopathic & Osteopathic Physicians · License 27910 (WI) Secondary
207ZI0100X Immunopathology Physician Allopathic & Osteopathic Physicians · License 27910 (WI) Secondary
207ZM0300X Medical Microbiology Physician Allopathic & Osteopathic Physicians · License 27910 (WI) Secondary
207ZN0500X Neuropathology Physician Allopathic & Osteopathic Physicians · License 27910 (WI) Secondary
207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 27910 (WI) Secondary
207ZP0104X Chemical Pathology Physician Allopathic & Osteopathic Physicians · License 27910 (WI) Secondary
207ZP0105X Clinical Pathology/Laboratory Medicine Physician Allopathic & Osteopathic Physicians · License 27910 (WI) Secondary
207ZP0213X Pediatric Pathology Physician Allopathic & Osteopathic Physicians · License 27910 (WI) Secondary
207ZC0500X Cytopathology Physician Allopathic & Osteopathic Physicians · License 27910 (WI) 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
31510500 Medicaid WI -

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

How do I verify Mark Hofer's NPI record?
Cross-check NPI 1134177538 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1134177538 active?
Yes, as of the latest NPPES snapshot, NPI 1134177538 is active (record last updated 2021-12-20).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-20.