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

Dr. William J. Listwan, MD

Individual provider Internal Medicine Physician · NPI 1528007028

Dr. William J. Listwan, MD is an Internal Medicine Physician in West Allis, Wisconsin. Practices as a sole proprietor. Licensed in Wisconsin.

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

See every abbreviation used in this directory →

Practice location Address checks out

555 S 108th St Quad-Med
West Allis, WI 53214-1100
Phone: (414) 566-8210
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 16862 (WI)

Record details

NPI number1528007028
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 6, 2006
Last updated in NPPESJanuary 4, 2011
Mailing addressN19w26595 Honeysuckle Ct, Unit A, Pewaukee, WI 53072-5414

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