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

Individual provider Family Medicine Physician · NPI 1811169550

Dr. Jeffrey Alan Kowalski, MD is a Family Practice in Elkhorn, Wisconsin. Qualified in 2007, 19 years ago. Practices with Mercy Health System Corporation, a 751-clinician group and accepts Medicare assignment. Licensed in California and Wisconsin.

Years since qualifying
19
Licensed in
CA, WI
In the registry since
2008
Specialties on file
2
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

839 N Wisconsin St
Elkhorn, WI 53121-4541
Phone: (262) 741-1400
Fax: (262) 741-1401
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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 54448-20 (WI)
Family Medicine Physician Taxonomy 207Q00000X · Licence A117482 (CA)

Record details

NPI number1811169550
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 1, 2008
Last updated in NPPESJuly 9, 2013

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Mercy Health System Corporation — 751 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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