Provider Profile
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License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
W231N1440 CORPORATE CT
Waukesha, WI 53186
725 American Ave Room 2036
Waukesha, WI 53188
Margaret Barrett is an internist in Waukesha, WI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Margaret Barrett is listed at W231N1440 Corporate CT, Waukesha, WI 53186. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (262) 896-6000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Margaret Barrett's National Provider Identifier is 1912161647. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Margaret Barrett has 18+ years experience. Registered with an NPI since 2008. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Not yet. This profile is built from public federal data and has not been confirmed by Margaret Barrett. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.