David Onsager, MD

Thoracic Surgery, Cardiac Surgery (Heart Surgery), Transplant | More

Clinical Associate of Surgery

UChicago Faculty Physicians hold faculty positions with the University of Chicago and provide care for patients on the academic health system’s main campus in Hyde Park and in care centers throughout the Chicago region.

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David Onsager, MD, is a highly skilled thoracic surgeon. Dr. Onsager has expertise in heart and lung transplantation as well as mechanical circulatory devices, including left ventricular assist devices and intra-aortic balloon pumps.

Through his research, Dr. Onsager has investigated ways to improve surgical techniques and processes, and has been published in multiple peer-reviewed journals, such as Thoracic Cardiovascular Surgery.

UChicago Faculty Physicians who provide services at UChicago Medicine Ingalls Memorial are not employees or agents of UChicago Medicine Ingalls Memorial.

Medical Education

  • Rush University Medical College

Internship

  • Froedtert Hospital

Residency

  • Froedtert Hospital

Fellowship

  • University of Wisconsin Hospital and Clinics

Memberships & Medical Societies

  • American College of Surgeons
  • Society of Thoracic Surgeons
  • International College of Surgeons
  • International Society for Heart and Lung Transplantation
  • Aetna HMO (specialists only)
  • Aetna POS
  • Aetna PPO
  • BCBS Blue Precision HMO (specialists only)
  • BCBS HMO (HMOI) (specialists only)
  • BCBS PPO
  • Cigna HMO
  • Cigna POS
  • Cigna PPO
  • CountyCare *see insurance page
  • Aetna Better Health *see insurance page
  • Medicare
  • Multiplan PPO
  • PHCS PPO
  • United Choice Plus POS/PPO
  • United Options (PPO)
  • United Select (HMO & EPO) (specialists only)
  • United W500 Emergent Wrap
  • Aetna Medicare Advantage HMO & PPO
  • BCBS Medicare Advantage HMO & PPO
  • Humana Medicare Advantage Choice PPO
  • Humana Medicare Advantage Gold Choice PFFS
  • Humana Medicare Advantage Gold Plus HMO
  • United Choice HMO (specialists only)
  • University of Chicago Health Plan (UCHP)
To Request an Appointment

Duchossois Center for Advanced Medicine (DCAM) - Hyde Park

Request an Appointment at Duchossois Center for Advanced Medicine (DCAM) - Hyde Park

UChicago Medicine at Methodist Hospital Merrillville

Request an Appointment at UChicago Medicine at Methodist Hospital Merrillville

To Refer a Patient

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At a Glance

Practicing Since1997

Board Certifications

  • Surgery
  • Thoracic Surgery

Languages Spoken

  • English