Accepting new patients

Dr. Karl Sun, MD

Cardiology ·  Male · Age 61

Dr. Sun

Dr. Karl Sun, MD is a cardiology specialist in San Diego, CA and has been practicing for 24 years. He graduated from University Of Zurich / Medical Faculty in 1982 and specializes in cardiology and internal medicine.

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(619) 287-7060

Dr. Sun accepts the following insurance:

Aetna HMO
Basic HMO
Choice Plus POS II
Vitalidad Plus California Con Aetna
Amerigroup (Wellpoint)
Anthem Blue Cross
Power Select HMO
Blue Cross Blue Shield
Blue Card PPO
CaliforniaCare HMO
Blue Cross Blue Shield of California
Blue Cross Blue Shield of California HMO
Blue Cross Blue Shield of California PPO
Pathway X Guided Access HMO
Priority Select HMO
Select Plus HMO
Blue Shield of California
Access Plus Savenet
Basic Exclusive PPO for Small Business
Basic PPO
Enhanced Exclusive for Small Business HMO
Local Access Plus HMO
Cigna HMO
Cigna PPO
Great West Healthcare-Cigna PPO
Open Access Plus
Commercial Insurance Company
Community Health Choice
Health Net
Community Care Network HMO
Covered California - Bronze PPO
Employer Group HMO
Health Net PPO
Individual and Family PPO
WholeCare Network HMO
INTotal Health
Kaiser Permanente
Midwest Health Plan
Molina Healthcare
MVP Health Care
Peach State Health Plan
Sharp Health Plan
Blue Choice
Staywell (Wellcare)
Choice Plus POS
Navigate HMO
Navigate POS
Options PPO
PacifiCare HMO
Wellcare of Georgia

Background Check

No malpractice claims found for California
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
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Experience Check

Check Dr. Sun's experience treating your condition or procedure

Dr. Sun's Top Procedures and Conditions

Treatment Frequency
Chest Pain

Treatment Frequency

Dr. Sun treats Chest Pain more than 87% of his peers

Dr. Sun treats this condition more than 87% of his peers

Heart Disease

Treatment Frequency

Dr. Sun treats Heart Disease more than 84% of his peers

Dr. Sun treats this condition more than 84% of his peers


Treatment Frequency

Dr. Sun treats Hypertension more than 82% of his peers

Dr. Sun treats this condition more than 82% of his peers

Rating Includes other areas of care:

  • Accelerated Hypertension
  • Dexamethasone Sensitive Hypertension
  • Exertional Hypertension
  • Familial Hypertension
  • High-Risk Hypertension
  • Hypertension in Pheochromocytoma
  • Hypertension, Adrenal Gland-Induced
  • Hypertension, Alcohol-Induced
  • Hypertension, Bilateral Renal Artery Stenosis-Induced
  • Hypertension, Coarctation of the Aorta-Induced
  • Hypertension, Conn Syndrome-Induced
  • Hypertension, Corticosteroid-Induced
  • Hypertension, Cushing's Syndrome-Induced
  • Hypertension, Environment-Induced
  • Hypertension, Hyperaldosteronism-Induced
  • Hypertension, Kidney Disease-Induced
  • Hypertension, Nasal Decongestant-Induced
  • Hypertension, Renal Segmental Hypoplasia-Induced
  • Hypertension, Stress-Induced
  • Hypertensive Hypokalemia Familial
  • Idiopathic Pulmonary Hypertension
  • Isolated Systolic Hypertension
  • Labile Hypertension
  • Neurogenic Hypertension
  • Pediatric Hypertension
  • Portal Hypertension
  • Primary Hypertension
  • Primary Pulmonary Hypertension, Dexfenfluramine-Induced
  • Primary Pulmonary Hypertension, Familial
  • Primary Pulmonary Hypertension, Fenfluramine-Induced
  • Pulmonary Arterial Hypertension
  • Pulmonary Hypertension
  • Pulmonary Hypoxic Hypertension
  • Pulmonary Thromboembolic Hypertension
  • Pulmonary Venous Hypertension
  • Renal Hypertension
  • Resistant Hypertension
  • Secondary Hypertension
  • Secondary Pulmonary Hypertension
  • White Coat Hypertension

Dr. Sun's conditions and procedures:

  • Angina and Acute Coronary Syndrome
  • Aortic Aneurysm
  • Aortic Ectasia
  • Aortic Valve Disease
  • Aortic Valve Regurgitation
  • Arrhythmias
  • Atrial Fibrillation
  • Atrial Flutter
  • Bradycardia
  • Cardiac Arrest
  • Cardiac Catheterization (incl. Coronary Angiography)
  • Cardiac Imaging
  • Cardiac Myocardial Perfusion Imaging
  • Cardiomegaly
  • Cardiomyopathy
  • Cardiovascular Disease
  • Cardiovascular Stress Test
  • Cardioverter-Defibrillator or Pacemaker Insertion, Removal or Repair
  • Carotid Artery Disease
  • Carotid Ultrasound
  • Chest CT (incl. Heart and Lungs)
  • Chest Pain
  • Chronic Pulmonary Heart Diseases (incl. Pulmonary Hypertension)
  • Congenital Aortic Valve Disorders
  • Congestive Heart Failure
  • Coronary Angioplasty, Atherectomy and Stent
  • Coronary Artery Disease (CAD)
  • Echocardiography
  • Endocarditis
  • Heart Attack (Acute Myocardial Infarction)
  • Heart Disease
  • Heart Murmur
  • Heart Palpitations
  • Hyperlipidemia
  • Hypertension
  • Hypertensive Heart Disease
  • Hypotension
  • Limb Swelling
  • Limb Swelling Caused by Fluid Overload
  • Mitral Valve Disease
  • Mitral Valve Stenosis
  • Nuclear Stress Testing
  • Pacemaker Insertion or Replacement
  • Pericardial Disease
  • Pulmonary Hypertension
  • Pulmonary Valve Disease
  • Septal Defect
  • Stress Echocardiogram
  • Syncope
  • Thrombosis
  • Tricuspid Valve Disease
  • Ultrasound, Abdominal Aortic
  • Vascular Disease
  • Weight Loss

About Me

Care Philosophy

My goal is to provide the highest quality patient-centered care by promoting a culture of caring and empathy; educating my patients utilizing evidence-based practice. Secondary Specialties: Nuclear Cardiology; Internal Medicine


  • Cardiology
  • Internal Medicine

Board Certifications


University Of Texas San Antonio
Residency Hospital
The University Of Texas At San Antonio
Internship Hospital
UCLA Medical Center
Fellowship Hospital
University Hospital, Zurich
Fellowship Hospital
Zurich University Hosp
Residency Hospital
University Of Zurich / Medical Faculty
Medical School


  • Chinese, Cantonese
  • Chinese, Mandarin
  • German
  • English


  • Healthgrades Honor Roll
  • Society of Nuclear Medicine-Young Investigators Award, 1993

Media & Publications

  • Effects of dobutamine stimulation on myocardial blood flow, glucose metabolism, and wall motion in normal and dysfunctional myocardium., 1996 Dec
  • Compartment model for measuring myocardial oxygen consumption using [1-11C]acetate., 1997 Mar
  • Simultaneous measurement of myocardial oxygen consumption and blood flow using [1-carbon-11]acetate., 1998 Feb
  • Effects of exposure to altitude on men with coronary artery disease and impaired left ventricular function., 1998 Feb

Dr. Sun's Reviews

Likelihood to recommend Dr. Sun


Based on 9 reviews

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Average Wait Time
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Dr. Sun's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. Karl Sun, MD
RecentMost Helpful
Dr. Sun has provided outstanding care to me over the last 5 years. His staff is also excellent and friendly.
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Dr. Sun is truly the best doctor I've ever had. He is knowledgeable, trustworthy and informative. He always responds promptly to my phone calls and his staff is on top of everything.
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I went to Dr. Sun to have a stress test on my heart as I have problems breathing he told me I have pulmonary hypertension, which I relayed to my pulmonary doctor that I have been seeing for eight years and my pulmonary doc did nothing I called Dr. Sun he told me to come in and he...Read More
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Dr. Sun is not only a great doctor but also very kind. He provides a high level of care for my 90 year-old mother and she trusts him implicitly. My mom was hospitalized for a heart condition about five years ago and after she met Dr. Sun and he was so kind to her, she immediately wanted him to be...Read More
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