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

Individual provider Otolaryngology Physician · NPI 1356724611

Dr. Jon Austin Slezak, MD is an Otolaryngology in Green Bay, Wisconsin. Graduated from University of Wisconsin School of Medicine in 2015, 11 years ago. Practices with Baycare Clinic LLP, a 196-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
11
Trained at
University of Wisconsin School of Medicine
Licensed in
WI
In the registry since
2015
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

2845 Greenbrier Rd
Green Bay, WI 54311-6519
Phone: (920) 288-8230
Fax: (920) 288-8235
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 73540 (WI)

Record details

NPI number1356724611
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 6, 2015
Last updated in NPPESMay 19, 2026
Certification dateMay 19, 2026

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Baycare Clinic Llp — 196 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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