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Dr. David Onsager, MD

Dr. David Onsager, MD

Cardiothoracic Surgery*
35+ years of experience

Dr. David Onsager, MD is a cardiothoracic surgeon in Chicago, IL and has over 35 years of experience in the medical field. He graduated from Rush University in 1988. He is affiliated with medical facilities The University of Chicago Medical Center and UChicago Medicine AdventHealth Hinsdale. He is accepting new patients.

3 Star Rating
Based on 2 reviews 3 Star Rating (2 reviews)

Practice

5841 S Maryland Ave Chicago, IL 60637

Make an Appointment

(773) 702-2500

At a Glance

  • Area of Expertise
    Dr. Onsager specializes in the area of Thoracic Cardiovascular Surgery. • See board certifications
  • Practices at Top Hospital
    America's 250 Best Hospitals Award™ • See hospitals
  • Hospital Satisfaction
    Patients said they were highly satisfied at this doctor's hospital. • See hospitals
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Dr. Onsager's Reviews

Likelihood to recommend Dr. Onsager

3.0
2 ratings
5 star
50%
50%
4 star
0%
0%
3 star
0%
0%
2 star
0%
0%
1 star
50%
50%

Leave a review

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Know Before You Go

About Me

biography

Dr. David Onsager, MD is a cardiothoracic surgeon in Chicago, IL and has over 35 years of experience in the medical field. He graduated from Rush University in 1988. He is affiliated with medical facilities The University of Chicago Medical Center and UChicago Medicine AdventHealth Hinsdale. He is accepting new patients.

  • Cardiothoracic Surgery

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Rush University

    Medical School, 1988
American Board of Medical Specialties®
American Board of Thoracic Surgery®
- 
Thoracic Cardiovascular Surgery
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

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Locations

Practice

University of Chicago Medical Center5841 S Maryland Ave Chicago, IL 60637
1
University of Chicago Hospitals5758 S Maryland Ave Chicago, IL 60637
2
Office5700 S Maryland Ave Chicago, IL 60637
3
Adventist Midwest Health120 N Oak St Hinsdale, IL 60521
4

Affiliated Hospitals

  • The University of Chicago Medical Center

    5841 S Maryland Ave
    Chicago, IL 60637
    Recipient of 30
    hospital awards

    America's 250 Best Hospitals Award™ (2025, 2024, 2023)

    Top 5% in the nation for consistently delivering clinical quality

    View all awards

    How patients felt about the care they received at this hospital.

    86%
    Patients said they were given information about recovering at home

    2% higher than the national average

    80%
    Patients said that doctors always listened to them and explained things well

    4% higher than the national average

    View all patient feedback

  • UChicago Medicine AdventHealth Hinsdale

    120 N Oak St
    Hinsdale, IL 60521
    Recipient of 7
    hospital awards

    Patient Safety Excellence Award™ (2025, 2024, 2023)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    86%
    Patients said they were given information about recovering at home

    2% higher than the national average

    76%
    Patients said that doctors always listened to them and explained things well
    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality