R. Eric Lilly, MD

R. Eric Lilly, MD

Assistant Professor

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Fond du Lac Regional Clinic

(920) 926-8420




  • Cardiothoracic Surgery
  • General Surgery

Board Certification

  • Thoracic Surgery

Hospital Affiliations

  • Froedtert Hospital

Patient Ages Seen

  • Adult
  • Senior

Languages Spoken

  • English

Diseases & Conditions

  • Aortic Valve Diseases
  • Cardiac Arrhythmias
  • Left Ventricular Remodeling
  • Mitral Valve Disease

Treatments & Services

  • Ascending Aortic Surgery
  • Heart Transplantation
  • Heart Valve Surgery
  • Minimally Invasive Surgery
  • Multi-Arterial Coronary Artery Bypass Grafting
  • Off Pump Coronary Surgery
  • Ventricular Assist Devices


Dr. Lilly believes that patients always come first. He specializes in uncompromised operations through less invasive incisions. He also believes that mitral valves should be repaired, not replaced.

Education / Training
  • Doctor of Medicine - Duke University School of Medicine - Durham, NC (1992)
  • Residency in General Surgery - Duke University School of Medicine - Durham, NC (1993-1999)
  • Residency in Cardiothoracic Surgery - Duke University School of Medicine - Durham, NC (1999-2001)
  • Research Fellowship - Duke University School of Medicine - Durham, NC (1994-1996)

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