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Dr. Kirk John Brown, M.D.

Hospitalist Physician in Grafton, WI · enumerated 2011 · practices at Aurora Medical Center Grafton.

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

National Provider Identifier

1861770729

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Registry record

Entity type Individual (Type 1)
Name Dr. Kirk John Brown
Credential M.D.
Sex Male
Practice address 975 Port Washington Rd, Grafton, WI, 53024
Phone (262) 329-3450
Fax (262) 329-1001
Enumeration date Jul 26, 2011
Last updated in NPPES Oct 23, 2023

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 62418 (WI) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 62418 (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
100039004 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.

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Frequently asked questions

Where does Kirk Brown practice?
The practice location on file with NPPES is in Grafton, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Kirk Brown?
The National Provider Identifier (NPI) for Kirk Brown is 1861770729, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-23.