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Dr. Greg L Brown, MD

Internal Medicine Physician in Waukesha, WI · enumerated 2007.

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

National Provider Identifier

1841344231

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Registry record

Entity type Individual (Type 1)
Name Dr. Greg L Brown
Credential MD
Sex Male
Practice address 2607 N. Grandview Blvd, Ste 150, Waukesha, WI, 53188
Phone (262) 522-8640
Fax (262) 522-8649
Enumeration date Jan 22, 2007
Last updated in NPPES Nov 18, 2013

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 26924020 (WI) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License WI-26924 (WI) 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

Where does Greg Brown practice?
The practice location on file with NPPES is in Waukesha, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Greg Brown?
The National Provider Identifier (NPI) for Greg Brown is 1841344231, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-11-18.