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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Katharine Grace Wolf, MD, PHD

Student in an Organized Health Care Education/Training Program in Baraboo, WI · enumerated 2023.

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

National Provider Identifier

1841991874

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Registry record

Entity type Individual (Type 1)
Name Dr. Katharine Grace Wolf
Credential MD, PHD
Sex Female
Practice address 1700 Tuttle St, Baraboo, WI, 53913
Fax (380) 355-7007
Enumeration date Mar 16, 2023
Last updated in NPPES Apr 12, 2024

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care 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.

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Frequently asked questions

How do I verify Katharine Wolf's NPI record?
Cross-check NPI 1841991874 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1841991874 active?
Yes, as of the latest NPPES snapshot, NPI 1841991874 is active (record last updated 2024-04-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-12.