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

Stephen L Blonsky, MD

Individual provider Nephrology Physician · NPI 1497855126

Stephen L Blonsky, MD is a Nephrology 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 Address checks out

S88W12923 Upland Ln
Muskego, WI 53150-7341
Phone: (715) 212-1291
Show map & directions

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

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 27560 (WI)

Record details

NPI number1497855126
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 23, 2006
Last updated in NPPESJune 22, 2020
Certification dateJune 22, 2020
Mailing addressS88w12923 Upland Ln, Muskego, WI 53150-7341