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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

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 11/20/2020, 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

170 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

42 Patient Comments

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 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.

Reviewed on Jun 16, 2021

The physician was professional and affable. Transparent in explaining what was transpiring. Left with confidence on how to move forward in the safest/healthiest way

Reviewed on Jun 9, 2021

Dr. Zhaka is the best - his kindness and humor!

Reviewed on May 19, 2021

We switched from UPMC Children's Hospital of Pittsburgh (which is also a top-ranked hospital), just so we could have our son treated by Dr. Zahka. He and his staff have been wonderful.

Reviewed on May 13, 2021

Best Dr. in his field.

Reviewed on May 12, 2021

Dr. Zahka is the finest doctor we have ever dealt with at the Cleveland Clinic. And we have a family of seven with 40 years of experience at the Clinic.

Reviewed on May 12, 2021

We love Dr. Zahka!!!

Reviewed on May 12, 2021

*Dr. Zahka was wonderful. He was personable & funny, on time, and thorough.

Reviewed on May 6, 2021

*Dr. Zahka and the entire staff were amazing. He made Sam feel relaxed, explained EVERYTHING, and even gave us a history lesson. One of the best dr. visits we've ever had!!

Reviewed on May 3, 2021

Dr. Zahra is an amazing man and physician! He truly cares about his patients and their families. He takes the time to listen and care and personalizes the treatment plan accordingly.

Reviewed on Apr 29, 2021

Dr Zahka is the best Doctor I have had in my lifetime. He knows me and my diagnosis well and I trust him with every decision regarding my health. He is stellar.

Reviewed on Apr 22, 2021

Dr. was very great and explained everything very well.

Reviewed on Apr 7, 2021

we love dr. Zahka

Reviewed on Mar 17, 2021

We feel confident in Dr Zahka's care and feel very lucky to have him as our son's cardiologist.

Reviewed on Mar 10, 2021

Dr Zahka is the best, I was his patient at Rainbow U.H and I follow him to the Clinic.

Reviewed on Mar 8, 2021

Dr. Kenneth Zahka exemplifies the best in heathcare: incredibly informative -- even writing notes for me; empathetic, patient, intellectually curious, doggedly committed to getting clarity for optimal healthcare decisions, patient-centered. The Hercule Poirot of doctors! Figuring out mysteries

Reviewed on Mar 2, 2021

I am so impressed by the way that *Dr. Zahka talks to my daughter. He empowers her to talk about her condition with confidence. He is warm and good-hearted, reassuring the kids about their future.

Reviewed on Mar 2, 2021

the doctor spent a lot of time explaining my son's situation and listened to our concerns.

Reviewed on Mar 2, 2021

Dr Zahka is great! We would absolutely recommend him to anyone!

Reviewed on Feb 9, 2021

Dr. Zhaka was thorough and caring and literally one of the best doctors I've interacted with.

Reviewed on Feb 8, 2021

Dr zahkas office was very easy, I needed a covid test prior to my appointment and that was a nightmare getting scheduled.

Reviewed on Jan 28, 2021

Dr Zahka is Hands down the best Dr i have ever had. He truly cares about his patients and has always made me feel very comfortable!.

Reviewed on Jan 14, 2021

Such a wonderful doctor. Very knowledgeable and made us feel much safer about our situation

Reviewed on Jan 7, 2021

always a wonderful day with Dr Zahka

Reviewed on Jan 5, 2021

*Dr. Zahka, you proved yourself as SO caring and SO competent once again! Thank you!! #7. Definitely.

Reviewed on Dec 23, 2020

love Dr. Zahka

Reviewed on Dec 21, 2020

dr. zahka is amazing!

Reviewed on Dec 9, 2020

I love Dr. Zakha

Reviewed on Nov 4, 2020

Dr Zahka is what keeps me in Cleveland and at the clinic. His assistant this visit was kind with a great personality. No doubt she'll become an excellent physician.

Reviewed on Nov 4, 2020

There is no better doctor than Dr. Zhaka! He is absolutely the best!

Reviewed on Oct 28, 2020

*Dr. Zahka (and his staff) was extremely thorough, spoke to my son & made sure he & I understood past, present & future about his condition & overall health.

Reviewed on Oct 28, 2020

*Dr. Zahka is AMAZING! The entire department is so caring and attentive. Thank you all!

Reviewed on Oct 19, 2020

As always, the Cleveland Clinic scheduled our two appointments within an hour of each other. We travel from about 3 hours away, and the Clinic always works with us to schedule the appointments close together to make it easy for us. AND, Dr. Zahka was his usual awesome self!

Reviewed on Oct 12, 2020

Dr Zaka is straight forward with all things pertaining to me health. That is what I want.

Reviewed on Oct 7, 2020

There will never be anyone as amazing as Dr. Z when it comes to listening and understanding your patients!

Reviewed on Oct 5, 2020

Dr. Z is the best doctor I've ever had thank god he isn't retiring any time soon!

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.

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