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

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 11/19/2019, 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

175 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 4.9
Patient Rating of Doctor 4.9

40 Patient Comments

Reviewed on Sep 28, 2020

the only reason we stay at the Cleveland clinic is because of dr zakah. he is an amazing physician that truly cares for our daughter and emotional and physical wellbeing.

Reviewed on Sep 8, 2020

Dr Zhaka communicates so well with our sonHe is caring and provides answers to questions that you should have asked but never thought of. he is also funny and light hearted and puts the family at ease.

Reviewed on Aug 26, 2020

Dr. Zhaka is absolutely terrific. He is thorough, thoughtful, kind, a good listener.

Reviewed on Aug 20, 2020

Yet again, Dr. Zahka proved himself to be a stalwart of the medical community. No single person, throughout my many years with CC, has been as professional, kind, funny, knowledgable, and wonderful as Dr. Zahka.

Reviewed on Aug 13, 2020

We always have a good experience but this time was exceptional. When my daughter was getting her echo, she was a little nervous. They played and sang music from her favorite movie Frozen to her. During the doctor visit we were able to include my husband through a video call. Dr. Zahka took the time to answer all our questions about returning to school during a pandemic. His nurse Danielle was amazing as always. We were entertained and had a great time which is something I wouldn't expect to say about going to the doctor.

Reviewed on Aug 11, 2020

Dr. Zhaka is wonderful with the kids!

Reviewed on Aug 10, 2020

We love the clinic. We feel blessed to have it close to us. We are big advocates. *Dr. Zahka is AWESOME!

Reviewed on Jul 31, 2020

we simply LOVE dr. Zahka!! I have learned so much from him over the yrs that him has been Erin's dr. now that she is older he directs questions to her but still includes me into the conversation. he know my concerns and addresses them before I can ask. he has a wonderful rep-or with his patients, and families. we are comfortable and know that he will give it to us straight and in a way we can understand. he is a true asset to your organization and we would follow him anywhere! he's the BEST!

Reviewed on Jul 27, 2020

Dr. Zahka took a lot of time and care explaining everything about my current condition. Excellent doctor.

Reviewed on Jul 24, 2020

We love Dr Zahka! He always involves my young daughter (the patient) in the discussions so she always knows what is going on with her health. I especially like this so that once she's an adult she will be more prepared to handle her health. Dr Zahka is the absolute best!

Reviewed on Jul 24, 2020

Dr. Zahka is amazing! He is not only so knowledgeable, but really takes the time to make sure my daughter understands what's going on in addition to her father and I. You can tell he genuinely is concerned about her well being and is motivated by all the right reasons. He's worth is weight in gold to The Cleveland Clinic.

Reviewed on Jul 22, 2020

dr spoke directly to my son about his health issues. encouraged him to participare in the appt. dr has a great sense of humor! we love having him as my sons cardiologist.

Reviewed on Jul 10, 2020

besides scheduling and the doctors comments about grandparents things were good. staff was great. When he spoke about what we were there for he was fantastic!!

Reviewed on Jul 10, 2020

I have been with Dr. Zahka since I was born and he has been a great pediatric cardiologist

Reviewed on Jul 9, 2020

We love Dr Zahka!

Reviewed on Jul 6, 2020

I travel quite a ways to bring my grandson to see Dr. Zahka, as he shows such care and compassion for his patients. He has explained every aspect of his treatment since the day he was born and what we can anticipate in the future. I wouldn't trust anyone else with his Heart.

Reviewed on Jun 15, 2020

Dr. Zahka is the most caring, thoughtful, and attentive physician I have known. He always makes time to answer my questions and makes sure I understand fully what is occurring and what to expect. I would recommend him to anyone.

Reviewed on Jun 12, 2020

*Dr. Zahka is the best! He always listens and explains things well!

Reviewed on Jun 11, 2020

Dr. Zahka and his staff are great and always very helpful. His staff helped with Issues we were having with the dental dept. and actually called me back immediately to let me know the issue was handled.

Reviewed on Jun 9, 2020

The doctor was wonderful with Jaxon and explaining everything to me!

Reviewed on Jun 4, 2020

Dr.Kenneth Zahka has been my cardiologist for 20 years and I have to say he is the best yet so far! Thanks Dr. Z for all you do

Reviewed on Jun 3, 2020

Dr. Zhaka is the best cardiologist. I always recommend him!!

Reviewed on Mar 18, 2020

Dr Zahka is the absolute best! we feel so blessed to have our daughter under his care

Reviewed on Mar 11, 2020

*Dr. Zahka was great! Took time to explain everything and answered all our questions.

Reviewed on Mar 4, 2020

Everything was great. Dr. Zahka is the best!

Reviewed on Mar 4, 2020

Dr. Zahka is an amazing doctor and he demonstrated such care and concern in delivering a diagnosis regarding our child. We are thankful for our children's health is in his hands. The echocardiogram experience was top-notch, as well.

Reviewed on Feb 5, 2020

Dr. Zahka is truly a wonderful person and excellent doctor.

Reviewed on Jan 29, 2020

Dr. Zahka was incredible. He is confident and listens well. We were especially impressed with how he wrote down his comments while explaining everything. Truly one of the best doctors I've ever seen!

Reviewed on Jan 29, 2020

Dr. Zahka is always amazing in his care. He is caring, thorough, respectful, and always takes the time to make sure to address all of our needs!

Reviewed on Jan 27, 2020

Dr Zahka is the best. Makes you feel comfortable and talks to you so you can understand what's going with your health.

Reviewed on Jan 20, 2020

Dr. Zahka is the ABSOLUTE best!!! He truly cares about each patient as an individual and listens to the children and the parent. He cares for the family as a whole!!!

Reviewed on Jan 16, 2020

We absolutely love Dr Zahka. We appreciate that since our daughter was an infant he has spoken TO her about her health and has been empowering her to be a self advocate.

Reviewed on Jan 16, 2020

i would highly recommend Dr Zahka. He is very approachable and my teenager is very engaged when he's speaking to her. He uses language that she understands which helps her to better understand her diagnosis.

Reviewed on Jan 13, 2020

Dr. Zacha is amazing and so thorough during every visit. He makes certain my daughter and I understand everything before ending each visit. we always leave with an after visit summary and additional notes. I'm able to reference the information as needed. I feel confident in the care we are receiving. He's brilliant and compassion and

Reviewed on Dec 19, 2019

I wish all doctors we're as amazing as Dr Zahka my daughter relaxed with the Dr

Reviewed on Dec 3, 2019

Dr. Zahka went above and beyond in discussing my child's medical situation. He was very clear in his explanation of his findings, why he came to his conclusion as well as any further steps that may be necessary. I certainly appreciated his expertise in helping my child, but what really made an impression was his kindness and the time he took to talk with us, it is very evident that he really cares about his patients and practice.

Reviewed on Nov 20, 2019

Dr. Zahka is THE best doctor I've met in my lifetime. My son does not care to visit any doctors, but going to see Dr. Zahka is like a field trip for him. I look forward to referring friends/family to him (Pray they don't need to use him.) Also, the fellowship doctors did an amazing job and the EKG and Echo nurses were amazing and my son loves them as well.

Reviewed on Nov 4, 2019

always courteous, concerned, respectful, caring we love our care provider good experience always

Reviewed on Oct 23, 2019

Excellently experience. We love Dr. Zahka!

Reviewed on Oct 14, 2019

*Dr. Zahka is an awesome physician. He takes care of my son like family. We are so lucky to have *Dr. Zahka as our physician. Couldn't be happier with our care.

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