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

Emily Kathleen Wilczak, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1386969400

Emily Kathleen Wilczak, MD practises General Surgery in Lake Geneva, Wisconsin. Practices with Mercy Health System Corporation, a 751-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Illinois.

Licensed in
IL
In the registry since
2010
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Lake Geneva, WI

Additional practice locations (2)

  • 875 South Route 31, Crystal Lake, IL 60014-8190 — (779) 220-5500
  • 901 Grant St, Harvard, IL 60033-1821 — (815) 943-5431

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 036136945 (IL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1386969400
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 31, 2010
Last updated in NPPESOctober 18, 2023
Certification dateOctober 17, 2023

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF HUMAN MEDICINE
Group practice Mercy Health System Corporation — 751 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mercy Health System Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 751 clinicians in the practice; 12 are shown here.

Other providers in Lake Geneva