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

Jonathan Gregory Tlachac, MD

Individual provider Anesthesiology Physician · NPI 1629204078

Jonathan Gregory Tlachac, MD is an Anesthesiology in Grafton, Wisconsin. Graduated from University of Utah School of Medicine in 2005, 21 years ago. Practices with Aurora Medical Group, Inc, a 3,741-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Pennsylvania and Wisconsin.

Years since qualifying
21
Trained at
University of Utah School of Medicine
Licensed in
PA, WI
In the registry since
2009
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

975 Port Washington Rd
Grafton, WI 53024-9201
Phone: (262) 329-2135
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 9200 W Wisconsin Ave, Milwaukee, WI 53226-3522 — (414) 805-8700

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 54241 (WI)
Anesthesiology Physician Taxonomy 207L00000X · Licence MD436211 (PA)

Record details

NPI number1629204078
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 29, 2009
Last updated in NPPESOctober 9, 2023
Certification dateOctober 9, 2023
Mailing addressPo Box 735044, Chicago, IL 60673-5044

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF UTAH SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Aurora Medical Group, Inc. — 3741 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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