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Department Pediatric Cardiology
Primary Location Cleveland Clinic Main Campus
Type of Doctor Both Adults and Children & Adolescents
Languages English
Surgeon No
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus


Additional Locations

Specialties & Treatments

Treatment & Services

  • 3D Echocardiography
  • 3D Image Processing
  • Adult Congenital Heart Disease Center
  • Advanced Imaging Techniques
  • Aortic Valve Repair
  • Cardiac Imaging CT
  • Cardiac MRI
  • Cardiology
  • Cardiothoracic Imaging
  • Cardiovascular CT
  • Cardiovascular Imaging
  • Cardiovascular Imaging Section
  • Cardiovascular MRI
  • Clinical Cardiology Section
  • Clinical Evaluation, Diagnosis and Treatment
  • Clinical Research in Congenital Heart Disease
  • Congenital Heart Surgery in Adults
  • Department of Pediatric Cardiology and CT Surgery
  • Doppler Echocardiography
  • Echocardiogram
  • Echocardiography
  • Echocardiography in Congenital Heart Disease
  • Fetal Cardiac Intervention
  • Fetal Echocardiogram
  • Heart Imaging
  • Hypertrophic Cardiomyopathy Center
  • Inpatient Care
  • Maternal and Fetal Medicine
  • Outpatient Care
  • Pediatric Cardiology
  • Pediatric Echocardiography
  • Perioperative Echocardiography
  • Second Opinion
  • Sports Cardiology Center
  • Transesophageal Echocardiogram (TEE)
View all 35 Treatment & Services +

Specialty in Diseases & Conditions

  • Acquired Valve Disease
  • Adult Congenital Heart Disease
  • Angina
  • Anomalous Pulmonary Veins
  • Antenatally Diagnosed Anomalies
  • Aorta Disease
  • Aortic Aneurysms
  • Aortic Insufficiency
  • Aortic Regurgitation
  • Aortic Stenosis
  • Aortic Valve Disease
  • Aortic Valve Regurgitation
  • Arteriovenous Malformation (AVM)
  • Atrial Septal Defects
  • Bicuspid Aortic Valve Disease
  • Cardiac Problems in Athletes
  • Cardiac Tumors
  • Cardiomyopathy
  • Chest Pain
  • Coarctation of the Aorta
  • Congenital Disorders of the Heart
  • Congenital Heart Defects
  • Congenital Heart Disease
  • Congenital Valve Disease
  • Connective Tissue Diseases
  • Connective Tissue Disorders
  • Constrictive-Pericarditis
  • Coronary Artery Disease
  • Coronary Fistula
  • Dandy-Walker Syndrome
  • Double Inlet Left Ventricle
  • Double Outlet Right Ventricle
  • Down Syndrome
  • Ebstein Anomaly
  • Ehlers-Danlos Syndrome
  • Eisenmenger Syndrome
  • Enlarged Aorta
  • Enlarged Heart
  • Familial Aortic Aneurysms and Dissections
  • Familial Cardiomyopathy
  • Family History of Genetic Disorders
  • Family History of Heart Disease
  • Heart Disease
  • Heart Murmur
  • Heart Palpitations
  • Heart Valve Disease
  • Hypertrophic Cardiomyopathy
  • Hypoplastic Left Heart Syndrome
  • Interrupted Aortic Arch
  • Kawasaki Disease
  • Loeys-Dietz Syndrome
  • Marfan Syndrome
  • Mitochondrial Disease
  • Mitral Stenosis with Insufficiency
  • Mitral Valve Disease
  • Mitral Valve Prolapse
  • Mitral Valve Regurgitation
  • Mitral Valve Stenosis
  • Orthostatic Hypotension
  • Palpitations
  • Patent Ductus Arteriosus
  • Patent Foramen Ovale
  • Pediatric Stroke
  • Pericardial Disease
  • Pericarditis
  • Pericoronitis
  • Pulmonary Artery Disease
  • Pulmonary Artery Stenosis
  • Pulmonary Atresia
  • Pulmonary Embolism
  • Pulmonary Hypertension
  • Pulmonary Insufficiency
  • Pulmonary Valve Disease
  • Pulmonary Valve Stenosis
  • Pulmonary Vein Stenosis
  • Pulmonic Regurgitation
  • Pulmonic Stenosis
  • Rheumatic Fever
  • Rheumatic Heart Disease
  • Superior Vena Cava Syndrome
  • Syncope
  • Tachycardia
  • Takayasu's Arteritis
  • Tetralogy of Fallot
  • Thoracic Aorta Disease
  • Thoracic Aortic Aneurysm
  • Total Anomalous Pulmonary Venous Connection (TAPVC)
  • Total Anomalous Pulmonary Venous Return (TAPVR)
  • Transposition of the Great Vessels
  • Tricuspid Regurgitation
  • Tricuspid Stenosis
  • Tricuspid Valve Disease
  • Tricuspid Valve Disorder
  • Truncus Arteriosus
  • Turner Syndrome
  • Valve Disease
  • Valve Prosthesis
  • Valvular Heart Disease
  • Vascular Anomalies
  • Ventricular Septal Defects
  • Williams Syndrome
View all 101 Specialties +


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About Kenneth Zahka, MD

Following residency in pediatrics, fellowship in pediatric cardiology and a faculty position at Johns Hopkins, Dr Zahka moved to Cleveland as Director of Pediatric Cardiology at Rainbow Babies and Children's Hospital. After nearly 20 years at Rainbow, he joined the staff of the Cleveland Clinic Children's Hospital in July 2009.  He holds the academic rank of Professor of Pediatrics at the Cleveland Clinic Lerner College of Medicine at Case Western Reserve University School of Medicine.

His clinical focus is genetic forms of cardiovascular disease including hypertrophic cardiomyopathy and connective tissue diseases. His current clinical research centers on the understanding of the impact of the founder gene mutation of myosin binding protein C3 in the Old Order Amish. He is also involved in researching medical therapy for hypertrophic cardiomyopathy. His current education focus is curriculum development to facilitate cardiology fellowship training in cardiopulmonary exercise testing and physiology.

He has been dedicated to the enhancement and development of cardiovascular care abroad, working with cardiologists in the Middle East, Kenya, Armenia, Russia and Ecuador. He has been recognized by Best Doctors in Cleveland from Cleveland Magazine and Best Doctors in America. He is a consultant for the Food and Drug Administration.

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Johns Hopkins Hospital
Pediatric Cardiology
Baltimore, MD

Medical Education - Johns Hopkins Hospital (Maryland)
Baltimore, MD United States

Residency - Johns Hopkins Hospital
Baltimore, MD

Residency - Johns Hopkins Hospital (Maryland)
Baltimore, MD United States

Internship - Johns Hopkins Hospital
Baltimore, MD

Medical Education - Johns Hopkins University School of Medicine
Baltimore, MD

Undergraduate - Boston University
Boston, MA

Medical Education - Johns Hopkins Hospital (Maryland)
Baltimore, MD United States


  • Pediatrics - Pediatric Cardiology
  • Internal Medicine - Adult Congenital Heart Disease
  • Pediatrics

Specialty Interests

Genetic cardiovascular disease: hypertrophic cardiomyopathy, Marfan Syndrome, Ehlers-Danlos Syndrome, familial aortic aneurysm, mitochondrial disease, cardiovascular sports medicine, exercise physiology and testing, adult congenital heart disease

Research & Publications

Research & Publications

See publications for Kenneth Zahka, MD.

(Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)

Industry Relationships

Industry Relationships

Cleveland Clinic physicians and scientists may collaborate with the pharmaceutical or medical device industries to help develop medical breakthroughs or provide medical expertise or education. Cleveland Clinic strives to make scientific advances that will benefit patient care and support outside relationships that promise public benefit. In order for the discoveries of Cleveland Clinic physicians' and scientists' laboratories and investigations to benefit the public, these discoveries must be commercialized in partnership with industry. As experts in their fields, Cleveland Clinic physicians and scientists are often sought after by industry to consult, provide expertise and education.

To assure professional and commercial integrity in such matters, Cleveland Clinic maintains a program that reviews these collaborations and, when appropriate, puts measures in place to minimize bias that may result from ties to industry. Cleveland Clinic publicly discloses the names of companies when (i) its physicians/scientists receive $5,000 or more per year (or, in rare cases, equity or stock options) for speaking and consulting, (ii) its physicians/scientists serve as a fiduciary, (iii) its physicians/scientists receive or have the right to receive royalties or (iv) its physicians/ scientists hold any equity interest for the physician's/scientist's role as inventor, discoverer, developer, founder or consultant.* In publicly disclosing this information, Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 3/25/2024, Dr. Zahka has reported the financial relationships with the companies listed below. In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.

Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.

* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.

Patient Satisfaction Reviews

125 Patient Satisfaction Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

The comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Cleveland Clinic.

Overall Star Ratings
5 out of 5
Explains 5
Courtesy, Respect & Concern 5
Patient Rating of Doctor 5

35 Patient Comments

Reviewed on May 29, 2024

Highly impressed and will absolutely 1000% recommend this facility to others. We had to drive 2.5 hours, but I'd do it over and over again and again to get the care and attention we received during our visit. The campus does seem a bit overwhelming to navigate through, but we had someone with us that had referred us to Dr. Zahka to help us get to his office with ease ;)

Reviewed on Mar 20, 2024

We love Dr. Zahka! The techs who did the echo and stress test were fabulous too.

Reviewed on Mar 5, 2024

I can't be more impressed with our experience with Dr. Zahka and his staff! They are knowledgeable, kind, patient and very caring!

Reviewed on Mar 5, 2024

Dr. Zahka is AMAZING! He made us feel at ease with his information, kindness and compassion.

Reviewed on Mar 5, 2024

I've been following cardiology for 30+ years, and Dr. Zahka is the best provider I've ever had!

Reviewed on Feb 29, 2024

Not only is Dr Zahka easy to schedule with, he is also incredibly prompt with return calls and always helpful!

Reviewed on Feb 21, 2024

Dr. Zahka is a wonderful doctor!

Reviewed on Feb 15, 2024

Dr. Zhaka is amazing and his staff. We are very glad we found him

Reviewed on Feb 10, 2024

Dr. Zhaka is the absolute BEST. I wish he could be cloned!!!!

Reviewed on Feb 7, 2024

Dr Zahka is the best!

Reviewed on Feb 7, 2024

Dr Zahka is very nice and explains things in a way that are easy for me to understand because I'm not very experienced with medical terms

Reviewed on Feb 6, 2024

Dr Z is the best and very thorough

Reviewed on Jan 18, 2024

Dr Z has been wonderful for many years and so has all of his staff.

Reviewed on Jan 4, 2024

Dr.Zahka is the best.

Reviewed on Nov 21, 2023

I love Dr. Zahka and Nicole Rush . They are kind and caring.

Reviewed on Nov 13, 2023

Dr Zahka is possibly the finest example of a doctor we have ever encountered the entire staff is world class

Reviewed on Nov 2, 2023

Everyone was so sweet and great with my daughter. The doctor explained everything so perfectly and they all went above and beyond our expectations

Reviewed on Oct 12, 2023

Dr. Zahka always explains things thoroughly and shows he cares.

Reviewed on Oct 4, 2023

I've been seeing Dr Zahka for 29 years. He has always spoken directly to me, even from a young age. He is thoughtful, patient and thorough. I feel safe in his care :)

Reviewed on Sep 25, 2023

Dr Zahka is very caring.

Reviewed on Sep 18, 2023

Dr Z is great, I hope he is my provider for a very long time.

Reviewed on Sep 11, 2023

Every one during our whole visit was wonderful. Dr. Z is great with his medical expertise and compassion. Thanks to all!

Reviewed on Aug 16, 2023

Dr. Zahka and his staff are truly amazing. So kind, caring, and helpful. They listen to your needs and go above and beyond regarding all concerns.

Reviewed on Aug 16, 2023

I highly recommend Dr. Zahka!

Reviewed on Aug 14, 2023

Dr. Zahka and all the clinical staff are amazing. They listen, explain clearly and answer all questions as much as they can.

Reviewed on Jul 26, 2023

Dr. Zahka is amazing. NO ONE!!!!! Takes the time to listen, reflect, and care for their patients like he does.

Reviewed on Jul 20, 2023

Dr. Zahka is incredible!!

Reviewed on Jun 28, 2023

Dr. Zahka is the best pediatric cardiologist

Reviewed on Jun 28, 2023

Amazing doctor

Reviewed on Jun 14, 2023

*Dr. Zahka is amazing!

Reviewed on Jun 14, 2023

Dr. Zahka is a wonderful for cardiologists. He's never in a hurry and answers all of our questions. He explains things in a way that we can understand ensures us that everything will be OK.

Reviewed on Jun 14, 2023

Everyone in the care of Dr. Zahka after being called back for the visit is wonderfully professional. Treated us all with respect is an overall wonderfully perfect doctor in his field.

Reviewed on Jun 13, 2023

*Dr. Zahka is the best!

Reviewed on Jun 8, 2023

We love Dr Zahka. Historically, we had all of our health care with Cleveland Clinic. As a family, for many reasons,we have moved away from Cleveland Clinic with the exception of Dr Zahka and an occasional visit to Express Care on a weekend if one of the kids is ill. Dr Zahka is the absolute best. I love how he talks to my child about her heart condition and he makes sure she understands what is going on with her own heart. Dr Zahka is irreplaceable!

Reviewed on Jun 7, 2023

He is The Best Congenital Heart Dr. I have ever had! Me and my wife pray over his health and happiness cuz' we don't want him to retire ever...

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