Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Monica M O'Sullivan, MD

Individual provider Internal Medicine Physician · NPI 1043262546

Dr. Monica M O'Sullivan, MD is an Internal Medicine Physician in West Allis, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2006.

Licensed in
WI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

11211 W Lincoln Ave
West Allis, WI 53227-1035
Phone: (414) 454-8300
Fax: (414) 327-1450
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 44298 (WI)

Record details

NPI number1043262546
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 16, 2006
Last updated in NPPESSeptember 9, 2021
Certification dateSeptember 9, 2021

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