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

Steven P Maciolek, MD

Individual provider Rheumatology Physician · NPI 1821031949

Steven P Maciolek, MD is a Rheumatology Physician in Janesville, 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

3200 E Racine St
Janesville, WI 53546-2343
Phone: (608) 371-8000
Fax: (608) 371-8937
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence 23137-020 (WI)

Record details

NPI number1821031949
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 14, 2006
Last updated in NPPESMay 6, 2014
Mailing address3200 E Racine St, Janesville, WI 53546-2343

Other providers in Janesville