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

Individual provider Hospitalist Physician · NPI 1740713940

Zachary Kaczmarek, MD is a Hospitalist in Milwaukee, Wisconsin. Qualified in 2017, 9 years ago. Practices with Ascension Medical Group-Southeast Wisconsin Inc, a 555-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
9
Licensed in
WI
In the registry since
2017
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

8701 W Watertown Plank Rd
Milwaukee, WI 53226-3548
Phone: (414) 955-4575
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 71493-20 (WI)
Hospitalist Physician Taxonomy 208M00000X · Licence 71493-20 (WI)

Record details

NPI number1740713940
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 5, 2017
Last updated in NPPESSeptember 26, 2025
Certification dateSeptember 26, 2025

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Ascension Medical Group-Southeast Wisconsin Inc — 555 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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