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Ms. Mariellen Fischer, PHD

Neurology Physician in Milwaukee, WI · enumerated 2006.

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

National Provider Identifier

1205880564

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Registry record

Entity type Individual (Type 1)
Name Ms. Mariellen Fischer
Credential PHD
Sex Female
Practice address Froedtert & Med College Clin - West, 9200 West Wisconsin Avenue, Milwaukee, WI, 53226
Phone (414) 805-3666
Enumeration date May 20, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 1091 (WI) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier Type State Issuer
39033000 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

What is the NPI number for Mariellen Fischer?
The National Provider Identifier (NPI) for Mariellen Fischer is 1205880564, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mariellen Fischer practice?
The practice location on file with NPPES is in Milwaukee, WI. Providers can have multiple locations; NPPES lists the primary practice address.

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