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

Stephen J Dufresne, MD

Individual provider Internal Medicine Physician · NPI 1861465791

Stephen J Dufresne, MD is an Internal Medicine Physician in Muskego, 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.

See every abbreviation used in this directory →

Practice location Partly verified

Some contact details are missing from the federal record.

Prohealth Care Medical Centers-Muskego S69 W15636 Janesville Rd
Muskego, WI 53150
Phone: (262) 928-7000
Fax: (414) 422-2075
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 27446 (WI)

Record details

NPI number1861465791
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 10, 2006
Last updated in NPPESMarch 13, 2009

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