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Mari Madsen, M.D., P.C.

Colon & Rectal Surgery Physician in West Hollywood, CA · enumerated 2007 · authorized official Mari Madsen, President.

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

National Provider Identifier

1659562866

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Registry record

Entity type Organization (Type 2)
Legal business name Mari Madsen, M.D., P.C.
Practice address 8737 Beverly Blvd, Suite 402, West Hollywood, CA, 90048
Phone (310) 854-3580
Fax (310) 659-5830
Enumeration date Aug 5, 2007
Last updated in NPPES Aug 5, 2007

Taxonomy & classification

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License A92144 (CA) Primary

Authorized official

Name Mari Madsen
Title President
Phone (310) 854-3580

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 is Mari Madsen, M.D., P.C. located?
The practice location on file with NPPES is in West Hollywood, CA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-08-05. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-08-05.