Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Jeffrey C Grzelka

Individual provider Emergency Medicine Physician · NPI 1780124875

Jeffrey C Grzelka practises Emergency Medicine in Burlington, Wisconsin. Qualified in 2017, 9 years ago. Practices with Aurora Medical Group, Inc, a 3,741-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
9
Licensed in
WI
In the registry since
2017
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Practice location Address checks out

252 McHenry St
Burlington, WI 53105-1828
Phone: (262) 767-6000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 20201 Crawford Ave, Olympia Fields, IL 60461-1010 — (708) 747-4000

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 75435 (WI)

Record details

NPI number1780124875
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMarch 8, 2017
Last updated in NPPESJuly 12, 2024
Certification dateJuly 12, 2024

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Aurora Medical Group, Inc. — 3741 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients389
Services billed 446 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Aurora Medical Group, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3741 clinicians in the practice; 12 are shown here.

Other providers in Burlington