Summary

Dr. Stephen Mendak has practiced surgery and colorectal surgery for 46 years and is affiliated with Elmhurst Memorial Hospital and Advocate Good Samaritan Hospital. He completed his residency at Rush Presbyterian St. Lukes Medical Center and earned his medical degree from Loyola University of Chicago Stritch School of Medicine. He sees patients in Downers Grove and Elmhurst, Illinois, and speaks English and Spanish. Patients on Vitals rate Dr. Mendak 5 out of 5.

Overview based on verified provider data

Quick Facts

  • 5
  • 46 years of experience
  • speaks English, Spanish
  • Rush Presbyterian St Lukes Medical Center
  • 2 specialties
  • 5 areas of expertise
  • 2 hospital affiliations
  • 2 office locations
  • Male

Office Locations

Dr. Stephen John Mendak has 2 locations

Advocate Good Samaritan Hospital

3815 Highland AveDowners Grove, IL 60515

Elmhurst Memorial Hospital

155 E Brush Hill RdElmhurst, IL 60126

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Dr. Stephen John Mendak JR., MDDr. Shannon Davis, DODr. Elizabeth Harvey, MDDr. Sarah Donnelly Hans, MD
SurgerySurgerySurgerySurgery
Accepts New Patients Accepts New Patients Accepts New Patients
5 
4.3 
4.9 
4 
46 Years of Experience 35 Years of Experience 39 Years of Experience 41 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English Speaks English Speaks English
Downers Grove , ILOrland Park , ILBatavia , ILChicago , IL
Med School: Loyola University Of Chicago Stritch School Of Medicine Med School: Pikeville College School of Osteopathic Medicine Med School: Loyola University of Chicago Med School: Northeast Ohio Medical University
Current Profile
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Insurance Plans Accepted by Dr. Stephen John Mendak

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Stephen John Mendak has the following 2 specialties

Specialty Expertise

Dr. Stephen John Mendak has the following 5 areas of expertise

  • Appendectomy
  • Colorectal Surgery
  • Galbladder Removal (Cholecystectomy)
  • Hemorrhoids
  • Laparoscopic Surgery (Laparoscopy)

Certifications, License, & Education

46 Years Experience

Dr. Stephen John Mendak holds an expired medical license in the state of Illinois.

Medical License

Medical Doctor with an expired medical license in the state of Illinois that expired in 2026.

Education & Training

Residency

Completed their residency at Rush Presbyterian St Lukes Medical Center.

Medical School

Graduated from Loyola University Of Chicago Stritch School Of Medicine in 1980.

NPI Number

Dr. Mendak's NPI number is 1154419257.

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Frequently Asked Questions

Is Dr. Stephen Mendak accepting new patients?
Dr. Stephen Mendak has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Stephen Mendak accept my insurance?
You can see the insurance plans that Dr. Stephen Mendak accepts on their Vitals profile.
Which hospitals is Dr. Stephen Mendak affiliated with?
Dr. Stephen Mendak is affiliated with Elmhurst Memorial Hospital and Advocate Good Samaritan Hospital.
Where is Dr. Stephen Mendak's office located?
Dr. Stephen Mendak's office is located at 3815 Highland Ave, Downers Grove, IL, 60515.
Does Dr. Stephen Mendak accept virtual/telehealth appointments?
Dr. Stephen Mendak has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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