Dr. Mark Onaitis, MD
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Dr. Mark Onaitis, MD
Cardiothoracic Surgery
Dr. Mark Onaitis, MD is a cardiothoracic surgeon in La Jolla, CA and has over 25 years of experience in the medical field. He graduated from Duke University School of Medicine in 1997. He is affiliated with medical facilities such as UC San Diego Health Hillcrest Hillcrest Medical Center and Duke University Hospital. He is accepting new patients and telehealth appointments.
Locations
UC San Diego Health
At a Glance
- Area of Expertise • Dr. Onaitis specializes in the area of Thoracic Cardiovascular Surgery. See board certifications
- Explains Conditions Well • Patients said this doctor explains conditions well. See reviews
- Offers Telehealth • This doctor offers telehealth appointments. Call the office to schedule an appointment.
- Practices at Top Hospital • Outstanding Patient Experience Award™ See hospitals
More Cardiothoracic Surgery Specialists at Palomar Health
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Dr. Onaitis' Reviews
Likelihood to recommend Dr. Onaitis
4.7
| 5 Star | 92% | 92% |
| 4 Star | 0% | 0% |
| 3 Star | 0% | 0% |
| 2 Star | 0% | 0% |
| 1 Star | 8% | 8% |
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Claim your profileOverall Patient Satisfaction
Likelihood of recommending Dr. Onaitis to family and friends is 4.6923075 out of 5
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About Me
care philosophy
Im a thoracic surgeon who primarily sees lung and esophageal cancer patients but treats benign esophageal patients as well. Ive been at Duke for about 20 years and enjoy working at a place with top-notch clinicians doing cutting-edge work. I became...read morebiography
Mark Onaitis, MD, is a board-certified thoracic surgeon who specializes in malignant and benign conditions of the chest, including lung cancer, esophageal cancer, thymic malignancy, gastroesophageal reflux, achalasia, paraesophageal hernia, and...read moreCardiothoracic 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.
Duke University Medical Center
Residency Hospital, 2007Duke University Medical Center
Fellowship Hospital, 2001Duke University School Of Medicine
Medical School, 1997
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.
Learn more about medical license public record checkSingle-cell chromatin profiling of the primitive gut tube reveals regulatory dynamics underlying lineage fate decisions, 2022-05-26
Evidence That SOX2 Overexpression Is Oncogenic in the Lung, 2010-06-10
Affiliated Hospitals
- Recipient of 2
hospital awardsView all awardsPatient Safety Excellence Award™ (2025, 2024)
Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications
View all patient feedbackHow patients felt about the care they received at this hospital.
83%Patients said they were given information about recovering at home1% lower than the national average
72%Patients said that doctors always listened to them and explained things well4% lower than the national average
- Recipient of 12
hospital awardsView all awardsOutstanding Patient Experience Award™ (2024, 2023, 2022)
Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions
View all patient feedbackHow patients felt about the care they received at this hospital.
89%Patients said they were given information about recovering at home5% higher than the national average
85%Patients said that doctors always listened to them and explained things well9% higher than the national average
- Recipient of 50
hospital awardsAmerica's 100 Best Hospitals Award™ (2025, 2024, 2023)
Top 2% in the nation for consistently delivering clinical quality year over year
View all awardsAmerica's 250 Best Hospitals Award™ (2025, 2024, 2023)
Top 2% in the nation for consistently delivering clinical quality year over year
View all patient feedbackHow patients felt about the care they received at this hospital.
89%Patients said they were given information about recovering at home5% higher than the national average
80%Patients said that doctors always listened to them and explained things well4% higher than the national average
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