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

Individual provider Family Medicine Physician · NPI 1306833991

Dr. Mario Kapetsonis, MD is a Family Practice in Milwaukee, Wisconsin. Qualified in 1998, 28 years ago. Practices with Columbia St Marys Hospital Milwaukee Inc, a 314-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
28
Licensed in
WI
In the registry since
2005
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

734 N Jackson St
Milwaukee, WI 53202-4602
Phone: (414) 277-6500
Fax: (414) 224-1365
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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 43438 (WI)

Record details

NPI number1306833991
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 29, 2005
Last updated in NPPESJanuary 10, 2012
Mailing address788 N Jefferson St, Suite 300/Attn. Kaaren Butzen, Milwaukee, WI 53202-3718

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Columbia St Marys Hospital Milwaukee Inc — 314 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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