Dr. Gan Dunnington
Dr. Gan Dunnington
Heart Surgeon
6 Woodland Road
St. Helena, CA 94574
About Dr. Gan Dunnington,
Heart Valve Surgeon
Hello! My name is Dr. Gan Dunnington and I am a cardiac surgeon having graduated from Medical College of Virginia in 2001. To date, I have performed approximately 3,000 cardiac surgeries, of which 1,500 involved heart valve procedures. I regularly perform surgery at Adventist Health St. Helena. Read more...
4 Patient Reviews for
Dr. Dunnington
"I had a feeling of confidence with Dr. Dunnington. He explained everything to me. The minute I woke up. I was fixed."
-- Jeff Baily, patient
"Dr. Dunnington is one of the best doctors we’ve met! Very friendly and clear communication. Him and his scheduler team made this surgery super heart-warming and easy to go through! Thanks again Dr. Dunnington and team!"
-- Maria Arenas, Pulmonary Valve, Median Sternotomy, 02/13/2026
My Specialities &
Clinical Interests
My heart surgery specialties include:
- Minimally invasive valve surgery with atrial fibrillation ablation
- Mitral, aortic and tricuspid repair surgery with sternal sparing techniquies
- Minimally invasive hybrid maze procedure for atrial fibrillation
In addition, I have research and clinical interests specific to:
- Hybrid therapy for atrial fibrillation
- Concomitant valve and atrial fibrillation surgery
Education, Training & Certificates
Dr. Gan Dunnington, heart surgeon, graduated from Medical College of Virginia in 2001.
After medical school, Dr. Dunnington completed his General Surgery Residency at Stanford in 2008 and a Cardiothoracic Surgery Residency at the University of Virginia in 2010.
Dr. Dunnington is board-certified by the American Board of Surgery and the American Board of Thoracic Surgery.
Schedule Appointment
with Dr. Gan Dunnington, MD
To schedule an appointment with Dr. Dunnington, you can:
- Call (707) 744-3842 right now
- Request an appointment
The office of Dr. Dunnington is located at 6 Woodland Road, St. Helena, CA 94574. To get driving directions to this office, please click the map below.
> Click for driving directions to Dr. Dunnington’s office.
News & Online References Featuring Dr. Gan Dunnington
Here is the latest news featuring Dr. Gan Dunnington:
- Expert Surgeon Profile, Dr. Gansevort Dunnington, Adventist Health St. Helena
- Atrial Fibrillation: Top 5 Misconceptions for Patients with Heart Valve Disease
- Special Update: Minimally-Invasive Heart Valve Experts Unite at Endoscopic Cardiac Surgeons Club Meeting
- Surgeon Q&A: The All Bipolar Clamp Technique for Minimally-Invasive Atrial Fibrillation Treatment
Page last updated: February 21, 2026