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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
Locations Specialties & Treatments

Treatment & Services

  • Adult Congenital Heart Disease Center
  • Aortic Valve Repair
  • Cardiology
  • Clinical Evaluation, Diagnosis And Treatment
  • Clinical Research in Congenital Heart Disease
  • Congenital Heart Surgery in Adults
  • Department of Pediatric Cardiology & CT Surgery
  • Hypertrophic Cardiomyopathy Center
  • Outpatient Care
  • Pediatric Cardiology
  • Second Opinion
  • Sports Cardiology Center
  • Total Anomalous Pulmonary Venous Connection (TAPVC)
  • Tricuspid Valve Insufficiency
View all 14 Treatment & Services +

Specialty in Diseases & Conditions

  • Adult Congenital Heart Disease
  • Anomalous Pulmonary Veins
  • Aorta Disease
  • Aortic Aneurysms
  • Aortic Insufficiency
  • Aortic Regurgitation
  • Aortic Stenosis
  • Aortic Valve Disease
  • Aortic Valve Regurgitation
  • Arteriovenous Malformations
  • Atrial Septal Defects
  • Bicuspid Aortic Valve Disease
  • Cardiac Problems in Athletes
  • Cardiac Tumors
  • Cardiomyopathy
  • Coarctation Of The Aorta
  • Congenital Heart Disease
  • Congenital Valve Disease
  • Connective Tissue Diseases
  • Connective Tissue Disorders
  • Constrictive-Pericarditis
  • Coronary Artery Disease
  • Coronary Fistula
  • Dandy -Walker Syndrome
  • Diseases of the Aorta
  • 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 Valve Disease
  • Hypertrophic Cardiomyopathy
  • Hypoplastic Left Heart Syndrome
  • Interrupted Aortic Arch
  • 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 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 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
  • William's Syndrome
View all 92 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

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

Residency - Johns Hopkins Hospital
Baltimore, MD USA

Residency - Johns Hopkins Hospital (Maryland)
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

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


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

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 11/28/2021, 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

156 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
Courtesy, Respect & Concern 5
Patient Rating of Doctor 4.9

37 Patient Comments

Reviewed on May 5, 2022

The best experience myself or my husband has had with any doctor. He was absolutely wonderful.

Reviewed on May 4, 2022

Dr Zahika and his team went above and beyond to explain things. All of them were friendly, considerate, and knowledgeable I felt very confident and reassured with the explanation of my son's diagnosis. He did not rush, answered all of our questions and even drew diagrams to explain what he was talking about. Outstanding care and attention to detail.

Reviewed on May 4, 2022

Dr Zahka is world class as both a physician and as a human. We are very grateful for him and the entire staff!

Reviewed on May 3, 2022

He was a great Doctor. He really cared about my child and you can tell he loves what he does. He spoke to my child and included her.

Reviewed on Apr 13, 2022

*Dr. Zahka is the best.

Reviewed on Apr 7, 2022

Excellent Doctor! Explained everything I felt totally comfortable. He was amazing with my teenage son.

Reviewed on Apr 5, 2022

Doctor and staff were excellent from start to finish

Reviewed on Mar 24, 2022

Dr. Zahka was so personable and treated us like family. With all the complexity of medical language, he easily broke it down for us and made it clear. I've never experienced a doctor like him who was so knowledgeable and so personable.

Reviewed on Feb 23, 2022

Dr. Zahka and his staff are very caring and provide excellent patient care. They listen to my concerns and answer all my questions.

Reviewed on Feb 21, 2022

Excellent care by provider

Reviewed on Feb 2, 2022

The whole team Dr zahka has is amazing I love that Dr zahka keeps it real with my son. I love that he talks to him makes him responsible for choice and actions

Reviewed on Feb 1, 2022

Dr. Zahka was wonderful! So incredibly wise and knowledgeable- and also funny! He provided just the right amount of levity as we discussed the diagnosis

Reviewed on Jan 31, 2022

*Dr. Zahka has been one of the best doctor's I have had.

Reviewed on Jan 13, 2022

Dr. Zahka is the best. He knows me well and I appreciate his knowledge and expertise.

Reviewed on Dec 8, 2021

I've been a patient of Dr zakas since he was at U.H Rainbow, he's the best.

Reviewed on Nov 9, 2021

Dr Z was amazing. Took the time to sit down with my son and although he shared difficult news he did so with care, compassion and information.

Reviewed on Nov 1, 2021

Dr Zahka is very caring , knowledgeable and thorough

Reviewed on Oct 18, 2021

He has been my doctor for my entire life. He is literally the best doctor I've ever experienced. He teaches me. He's humble. He's smart.

Reviewed on Oct 5, 2021

Dr Zakha is a phenomenal physician! I and thankful to be under his care. He puts my anxieties at ease and explains things In a way I can understand. He doesn't bogg me down with medical terminology that goes over my head. His staff Is just as wonderful.

Reviewed on Oct 5, 2021

I would recommend dr zakha and his team to anyone with a heart condition!

Reviewed on Sep 20, 2021

Dr Zahka is an excellent doctor. I hope I am able to continue seeing him for a long time. I truly appreciate our visits and I learn each time.

Reviewed on Sep 15, 2021

This is my second appointment with Dr Zahka. He is most kind, courteous. His explanations are very thorough . I appreciate his kindness, thoroughness of his treatment if my heart issue and me as a person. Highly commend his as a person and practice as a Dr. An extremely nice staff as well that works with him.

Reviewed on Sep 15, 2021

Dr Zahka is the best !!

Reviewed on Sep 13, 2021

An overall 10/10 experience...The Doctor and PA were both top tier and I would recommend them to anyone and everyone.

Reviewed on Sep 10, 2021

We love Dr Z

Reviewed on Sep 10, 2021

Only would recommend Dr Z personally

Reviewed on Aug 26, 2021

Dr Zahka is the Best!!!

Reviewed on Aug 26, 2021

Dr. Zahka has seen us thru many years of ups and downs for Brock and could be more grateful to have him as one of Brocks Lead Doctors. He is always informative and his staff ALWAYS takes the time to get back in touch via My Chart or Phone. Thank you ALL.

Reviewed on Aug 23, 2021

Dr Zahka is the BEST!

Reviewed on Aug 11, 2021

Dr. Zahka is amazing. He takes his time - explains to both Eric and myself what is happening and teaches Eric about his heart challenges. Dr. Zahka carefully explains the treatment plan. He also writes it down so we can take it with us when we leave.He is simply the best!

Reviewed on Aug 10, 2021

Physician & NP were phenomenal. I am an RN & consider myself to have high expectations from providers... these were exceeded. I especially appreciate that *Dr. Zahka wrote down the main points & handed the paper to us!

Reviewed on Aug 4, 2021

Dr. Zahka is amazing! My daughter Jordan loves him. He takes his time to explain her issues.

Reviewed on Aug 2, 2021

Dr. Zahka is always amazing on all levels. I actually referred someone to him recently and always will.

Reviewed on Jul 23, 2021

Great virtual apt I'm not high tech but pulled it off dr z. Is best

Reviewed on Jul 12, 2021

Always a pleasure seeing Dr. Zahka. Very thorough and easy to follow exactly why is going on.

Reviewed on Jul 1, 2021

This office/providers are always awesome.

Reviewed on Jun 30, 2021

Dr. Zahka is thorough and transparent with his assessment and communication. I appreciate his step by step approach and his candidness when sharing his recommendations. He clearly communicates what the primary concerns are and what the next steps should be. I like how he explains the immediate needs and then what the additional needs will be in the future. I'm grateful for the proactive approach of this team, the confidence in the care that is provided and the experience Dr. Zahka and his team have for treating children with similar presentations as my son.

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