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

John C Lesniak, MD

Individual provider Family Medicine Physician · NPI 1912979451

John C Lesniak, MD is a Family Practice in Hartland, Wisconsin. Graduated from Medical College of Wisconsin in 1997, 29 years ago. Practices with Prohealth Medical Group Inc, a 472-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
29
Trained at
Medical College of 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.

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Practice location Address checks out

1500 Walnut Ridge Dr Prohealth Care Medical Associates Inc
Hartland, WI 53029-9317
Phone: (262) 928-7500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 40186 (WI)

Record details

NPI number1912979451
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 7, 2006
Last updated in NPPESApril 20, 2012
Mailing address1500 Walnut Ridge Dr, Prohealth Care Medical Associates, Inc., Hartland, WI 53029-9317

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 1997 (29 years in practice)
Group practice Prohealth Medical Group Inc — 472 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 on file with Medicare

Other providers in Hartland