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

Treatment & Services

  • Adult Congenital Heart Disease Center
  • Clinical Cardiology, Echocardiography, Cardiac Mri
  • Department of Pediatric Cardiology & CT Surgery
  • Echocardiography in Congenital Heart Disease
  • Hypertrophic Cardiomyopathy Center
  • Pediatric Cardiology
  • Pediatric Echocardiography
  • Sports Cardiology Center
View all 8 Treatment & Services +

Specialty in Diseases & Conditions

  • Adult Congenital Heart Disease
  • Aorta Disease
  • Aortic Aneurysms
  • Aortic Regurgitation
  • Aortic Stenosis
  • Aortic Valve Regurgitation
  • Atrial Septal Defects
  • Cardiomyopathy
  • Coarctation Of The Aorta
  • Congenital Heart Disease
  • Congenital Valve Disease
  • Connective Tissue Disorders
  • Dilated Cardiomyopathy
  • Down Syndrome
  • Ebstein Anomaly
  • Ehlers-Danlos Syndrome
  • Eisenmenger Syndrome
  • Endocarditis
  • Heart Murmur
  • Heart Valve Disease
  • Hypertrophic Cardiomyopathy
  • Hypoplastic Left Heart Syndrome
  • Infective Endocarditis
  • Loeys-Dietz Syndrome
  • Marfan Syndrome
  • Mitochondrial Disease
  • Mitral Valve Prolapse
  • Mitral Valve Regurgitation
  • Mitral Valve Stenosis
  • Myocarditis
  • Orthostatic Hypotension
  • Patent Ductus Arteriosus
  • Patent Foramen Ovale
  • Pericarditis
  • Pulmonary Artery Stenosis
  • Pulmonary Hypertension
  • Pulmonary Valve Disease
  • Pulmonic Regurgitation
  • Pulmonic Stenosis
  • Rheumatic Heart Disease
  • Superior Vena Cava Syndrome
  • Syncope
  • Tetralogy Of Fallot
  • Thoracic Aortic Aneurysm
  • Transposition Of The Great Vessels
  • Tricuspid Regurgitation
  • Tricuspid Stenosis
  • Tricuspid Valve Disease
  • Turner Syndrome
  • Ventricular Septal Defects
  • William's Syndrome
View all 51 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 USA

Residency - Johns Hopkins Hospital
Baltimore, MD USA

Internship - Johns Hopkins Hospital
Baltimore, MD USA

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

Undergraduate - Boston University
Boston, MA USA


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

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 12/13/2018, Dr. Zahka has reported no financial relationship with industry that is applicable to this listing. 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

180 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
4.9 out of 5
Explains 4.9
Listens 4.8
Courtesy, Respect & Concern 4.9
Knows Medical History 4.8
Time Spent with Patient 4.9
Patient Rating of Doctor 4.9

39 Patient Comments

Reviewed on Jul 24, 2019

Dr. Zahka is the BEST!!!!

Reviewed on Jul 22, 2019

Dr. Zahka gives the most thorough explanations of any doctor I've ever gone to!

Reviewed on Jul 18, 2019

Dr Zahka spent a lot of time explaining to our daughter her exact condition and is helping her take ownership of it for the future. The Clinic, (as amazing as it is) seems to have become a manufacturing line for patients. Dr Zahka took the time to make sure everyone understood her test results and answered all of our questions.

Reviewed on Jul 12, 2019

We love Dr. Zahka. He makes the kids feel comfortable and teaches them about their heart condition.

Reviewed on Jul 11, 2019

I don't feel like the doctor was interested in any discussion of symptoms. It appears as though he drew his conclusions solely from the ECG results.

Reviewed on Jul 11, 2019

We love Dr Zahka. I especially appreciate that he first speaks directly to my sister who has a disability instead of me. He also gives my sister handwritten notes explaining her health. He is one in a million!!

Reviewed on Jul 11, 2019

Dr Zahka and Danielle are the best. They truly care about their patients!

Reviewed on Jul 3, 2019

So grateful for Dr. Zahka's thorough and compassionate explanation of all aspects. We feel fortunate to have his expertise and experience in our corner.

Reviewed on Jun 26, 2019

Dr. Zahka treats us and our son both with the utmost respect. He makes us feel like we are the most important people to him while he is with us. He is kind and attentive and funny!

Reviewed on Jun 26, 2019

Dr. Zhaka is always very reassuring. He speaks directly to my son and ensures he has complete understanding of his condition, test results and recommendations for future follow up. Our family appreciates thej time and care he takes with us at each visit!!

Reviewed on Jun 4, 2019

Dr. Zahka is the best! He is warm, funny and caring. He puts every one at ease while discussing the scary topic of heart problems.

Reviewed on Jun 3, 2019

Dr. Zahka was absolutely incredible, he got to know my child during the visit and proactively addresses all my concerns and questions. he understands the anxiety level of the parents/kids around what potential news they may hear at the appointment. His bedside manner and approach to patients should be a case study/course in med school.

Reviewed on May 15, 2019

Happy to have picked this doctor who was funny and knowledgeable in his diagnosis.

Reviewed on May 7, 2019

This is one of the very few doctors my son had that asks him personal questions and asks me how he is doing as a person.

Reviewed on May 7, 2019

My child has special needs and lots of doctors. This is the best office we go to.

Reviewed on May 6, 2019

*Dr. Zahka was exceptional. He is kind, knowledgeable and thorough. He explained everything so my son understood.

Reviewed on May 6, 2019

We would recommend *Dr. Zahka to anyone.

Reviewed on Apr 29, 2019

Dr Z is one of the kindest men I know. He gives explains everything in a straight forward and respectful manner. He lays out a 5 year plan each visit so I know where I am going with my health and he injects humor to make for an enjoyable visit.

Reviewed on Apr 26, 2019

I have been with Dr. Zahka since I was born. He is the greatest Cardiologist. I have always had a good experience.

Reviewed on Apr 25, 2019

I just love Dr. Zahka and his bedside manner.

Reviewed on Apr 4, 2019

he is a wonderful doctor. Very knowledgeable.

Reviewed on Apr 2, 2019

*Dr. Zahka is very understanding & caring. I could not be present during appointment so he offered to include me via Face Time.

Reviewed on Apr 1, 2019

We were primarily with Dr. Zahka, and he was great, especially at explaining everything.

Reviewed on Mar 25, 2019

We love Dr. Zahka. He always spends time explaining things in detail and takes an interest in our situation.

Reviewed on Mar 25, 2019

Dr. Zahka is a fabulous doctor! He looks at the whole person and actively involved my child in his recommendations. He explains information in a very organized manner and answers all our questions to the best of his ability. Absolutely a top notch cardiologist!!!!!

Reviewed on Mar 12, 2019

The best provider at the clinic. Included patient and family in care treatment plan. Professional and an expert in cardiology. I would highly recommend.

Reviewed on Mar 7, 2019

Dr. Zahka is always very thorough and explains everything to us in laymen's terms. He is always willing to answer our "what-if" questions!

Reviewed on Feb 6, 2019

DR Zakaha is absolutely the nicest guy we could of ever wanted. he is perfect for his job. A very fine man please please don't let him leave like all the other doctors have been. He has made this horrible disease bearable, may God bless him and his staff

Reviewed on Feb 6, 2019

Dr. Zahka was very thorough and patient while explaining possible outcomes and helping us to understand my daughter's condition. We are very pleased with our decision to seek a specialist at the Cleveland Clinic for her care.

Reviewed on Jan 14, 2019

always have a great experience going to the Cleveland clinic. Dr. Zahka has the best bedside manner and his explanations put everyone in the room at ease.

Reviewed on Oct 11, 2018

Dr. Zahka went above and beyond to care for my daughter & expressed concern for my family as well.

Reviewed on Oct 11, 2018

Dr Zahka was very thorough and gave great recommendations

Reviewed on Oct 2, 2018

Dr Zahka is a phenomenal cardiologist. he made me feel at ease when I was nervous, and he listened to all my concerns. He spoke to me in a way that I would understand. It is evident that he cares about his patients. I would recommend him to anyone.

Reviewed on Sep 19, 2018

We were seen by the doctor about an hour after our appointment time but he seemed very busy and he apologized for the delay, which was nice of him to do.

Reviewed on Sep 19, 2018

it was a long appointment by necessity with gaps of waiting that were sometimes long but it was communicated and we were acknowledged by doctor and staff.

Reviewed on Sep 19, 2018

everyone was nice at appointment and Dr. Zahka seems wonderful. we felt confident at the appointment but not so confident with the lack of follow up.

Reviewed on Sep 10, 2018

Dr Zahka was right on time and a great communicators. !!!

Reviewed on Aug 15, 2018

excellent doctor!

Reviewed on Aug 14, 2018

Dr. Zahka is friendly and professional. He seemed genuinely concerned for my health. Would definitely recommend him!!

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