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

Mr. Irwin Margolis, MD

Individual provider Internal Medicine Physician · NPI 1538418322

Mr. Irwin Margolis, MD is an Internal Medicine Physician in Mequon, Wisconsin. Practices as a sole proprietor. Licensed in Wisconsin.

Licensed in
WI
In the registry since
2012
Specialties on file
2
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

2635 W Lake Park Ct
Mequon, WI 53092-2453
Phone: (262) 643-4097
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 17519 (WI)
Medical Oncology Physician Taxonomy 207RX0202X · Licence 17519 (WI)

Record details

NPI number1538418322
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 7, 2012
Last updated in NPPESSeptember 7, 2012
Mailing address2635 West Lake Park Court, Mequon, WI 53092-2453

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