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Department Cardiovascular Medicine
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages English, French
Surgeon No
Locations
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus

Appointment:
216.444.6697
Desk:
216.444.3932
Fax:
216.445.6145
Specialties & Treatments

Treatment & Services

  • Cardiovascular Imaging
  • Cardiovascular Imaging Section
  • Cardiovascular Medicine
  • Cardiovascular Medicine Department
  • General Cardiology
  • Heart Imaging
  • Non-Invasive Diagnostic Testing
  • Pericardial Diseases Center
  • Stress Testing
View all 9 Treatment & Services +

Specialty in Diseases & Conditions

  • Amyloidosis
  • Aneurysms
  • Angina
  • Aorta Disease
  • Aortic Aneurysms
  • Aortic Occlusion (blockage)
  • Aortic Regurgitation
  • Aortic Stenosis
  • Atherosclerosis (vascular)
  • Atrial Fibrillation
  • Atrial Septal Defects
  • Cardiovascular Disease
  • Cardiovascular Risk Prevention
  • Congenital Valve Disease
  • Coronary Artery Disease
  • Endocarditis
  • Heart Attack
  • Heart Disease
  • Heart Murmur
  • Heart Related Illnesses
  • Heart Valve Disease
  • Heart Valve Infections
  • High Cholesterol
  • Hypertension - High Blood Pressure
  • Marfan Syndrome
  • Mitral Valve Prolapse
  • Mitral Valve Regurgitation
  • Mitral Valve Stenosis
  • Myxomas
  • Pericardial Cyst
  • Pericardial Disease
  • Pericardial Effusion
  • Pericarditis
  • Pulmonary Valve Disease
  • Pulmonary Valve Stenosis
  • Restrictive Cardiomyopathy
  • Rheumatic Heart Disease
  • Tricuspid Valve Disease
View all 38 Specialties +
Insurance

Insurance

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Biography

About Allan Klein, MD

Allan Klein, MD, is the Director of Cardiovascular Imaging Research, Director of the Center for the Diagnosis and Treatment of Pericardial Diseases, and a staff cardiologist in the Section of Cardiovascular Imaging, the Robert and Suzanne Tomsich Department of Cardiovascular Medicine, at the Sydell and Arnold Miller Family Heart, Vascular & Thoracic Institute.  He is also the Course Director for Diastology and Contrast Echo & New Technologies Courses—currently his 15th annual course.  He is board-certified in internal medicine and cardiovascular medicine.   A Canadian by birth, Dr. Klein speaks fluent French and English. 

In addition to office visits, Dr. Klein also offers scheduled follow up virtual visits to select patients, through the Cleveland Clinic Express Care ® Online app. This platform allows patients to see their physician live, using their smartphone, tablet or computer.

Specialty Interests:  cardiovascular imaging (echocardiography, cardiac MR and computed tomography); pericardial diseases; restrictive cardiomyopathies; valvular heart disease; atrial fibrillation; and diastolic heart failure.

Number of Procedures Performed: Dr Klein reads well over 2000 echocardiograms per year and performs TEE and intraoperative echocardiogram for the interventional structural program. The pericardial center evaluates over 2100 patients per year of which Dr Klein sees the majority of patients. He is also heads the pericardiocentesis simulation program which trains the cardiology fellows and performs pericardiocentesis.

Success Rates: Cleveland Clinic has been ranked the #1 hospital for cardiology and heart surgery by U.S. News & World Report since 1994. Success rates for specific procedures are available at: http://my.clevelandclinic.org/heart/about-heart-vascular-institute/treatment-outcomes.aspx

Education and Training: Dr. Klein received his medical degree from McGill University in Montreal, Quebec after completing an undergraduate degree in microbiology and immunology, graduating with honors.  While in medical school, he received several scholarships and graduated in the top 10 percent of his class.  Dr. Klein completed his clinical training at Mount Sinai Hospital in Toronto and the Royal Victoria Hospital in Montreal.  He completed a Cardiology Residency from the University of Ottawa Heart Institute and a Research Fellowship from the Mayo Clinic in Rochester, Minn.  He was appointed to Cleveland Clinic in 1989.

Research, Publications and Speaking:  In addition to his scholarships and academic achievements, Dr. Klein won the E.G.D. Murray Prize in Microbiology and Immunology as an undergraduate and has received multiple American Society of Echocardiography Outcomes Research Awards.

Dr. Klein has been course director and workshop leader at numerous medical specialty conferences focused on clinical trials, imaging modalities and clinical protocols, to name a few.  He currently serves as Professor of Medicine at the Cleveland Clinic Lerner College of Medicine of Case Western University.  Dr. Klein was a member of the Lerner College of Medicine Admissions Committee.
He has been the principal investigator for multicenter clinical trials in atrial fibrillation (ACUTE I, ACUTE II, and CLOTS); studies in diastolic function (ADEPT); valvular heart disease (Anorexigens and Valve Disease); and catheter ablation and pulmonary vein flow (ROTEA).  He has published key articles in such prestigious journals such as New England Journal of Medicine, Lancet, European Heart Journal, Circulation, and the Journal of the American College of Cardiology.  He chaired the Writing Committee for the document entitled “American Society of Echocardiography clinical recommendations for multimodality cardiovascular imaging of patients with pericardial disease:  Endorsed by the Society for Cardiovascular Magnetic Resonance and Society of Cardiovascular Computed Tomography.”

In June 2016, Dr. Klein was appointed President of the American Society of Echocardiography (ASE).. He is now immediate Past President.  He has served on the Board of Directors of the ASE and has been the Chair of the Industry Relations Committee and Chair of the Guidelines and Standards Committee.  Dr. Klein is also on the Writing Committee for the National Board of Echocardiography and served on the Board of Advisors of Cardiovascular Credentialing International.  He serves as a peer reviewer for more than 15 professional journals and grades abstracts for the American College of Cardiology, the ASE, the American Heart Association, and the European Society of Cardiology.

He has been an invited lecturer at many national and international symposia and conferences, speaking on topics related to his specialty interests.  Dr. Klein has authored or co-authored more than 280 peer-reviewed articles in professional journals, co-authored 40 chapters in medical textbooks and published 430 abstracts.  He is a co-editor of 2 books entitled "Diastology: Clinical Approach to Diastolic Heart Failure." as well as "Clinical Echocardiography Review: A Self-Assessment Tool."  Dr. Klein completed  a 2nd edition of the "Clinical Echocardiography Review:  A Self-Assessment Tool."  He has been the director and co-director of the Annual Diastology and Valve Summit courses for the last 20 years. He is also section editor on pericardial diseases for ACC.org and Current Cardiology reports.

About Dr. Klein: "I am a people person and enjoy the patient interaction. I am delighted in helping patients of all ages get better. With my clinical and imaging skills, I like to make a difference on a day to day basis."

Leisure time activities:  Dr. Klein is an avid sportsman and enjoys playing ice hockey, cycling, spinning, hiking and plays many sports. He enjoys reading and traveling around the world.

Education & Professional Highlights

Education & Professional Highlights

Appointed
1989

Education & Fellowships

Fellowship - Mayo Clinic
Cardiovascular Diseases
Rochester, MN USA
1988

Residency - University of Ottawa Heart Institute
Cardiology
Ottawa, Ontario,
1986

Residency - Royal Victoria Hospital
Internal Medicine
Montreal, Quebec,
1984

Internship - Mount Sinai Hospital
Internal Medicine
Toronto, Ontario,
1982

Medical Education - McGill University Faculty of Medicine
Montreal, Quebec,
1981

Undergraduate - McGill University
Montreal, Quebec,
1977

Additional Training

  • Leading in health care business program, Cleveland Clinic

Professional Highlights

  • Past three years:

    Notification “In the Spotlight” column of the Cleveland Clinic Professional Staff Update announced the recent appointment of Vice President of the ASE.  After a one-year term, president-elect and then president , 2014
  • Invited Visiting Professor at Mount Sinai Hospital for Anandi L. Sharma Visiting Professorship and Simon Dack, MD Memorial Lecture, Heart Failure with Preserved Ejection Fraction with live presentation at www.heart-talks.org, 2015
  • 13th Annual Tajik/Seward Lectureship, Cleveland Clinic HVI National Leadership  and Diseases Center and IPU Development, 2015
  • Section Editor for Pericardial Disease for ACC.org, 2016
  • Key Note Speaker:  “Constrictive Pericarditis in the 21st Century” at the Portuguese Congress of Cardiology, 2016
  • Elected President of the American Society of Echocardiography, 2017
  • Notification in the Cleveland Clinic “Weekly Scoop:  News from the Chief of Staff 5 Questions section on providing a one-stop-shop for patients with pericardial disease, 2017
    Physician’s Weekly article, “Key Concepts in Managing Complicated Pericarditis”  2017
  • Guest Co-Editor for Progress in Cardiovascular Disease 2017;59(4):325-26,  2017
  • Co-Editor of “Clinical Echocardiography Review:  A Self-Assessment Tool.” 2nd Edition.  Wolters Kluwer, 2017

Certifications

  • Internal Medicine
  • Internal Medicine - Cardiovascular Disease

Specialty Interests

Amyloidosis, Heart Valve Disease, Pericardial Disease, Pericarditis, Cardiovascular imaging, Echocardiogram, Non-invasive Diagnostic Testing

Awards & Honors

  • Fellowships: American College of Cardiology, Royal College of Physicians (Canada), American Society of Echocardiography, American Heart Association, European Society of Cardiology
  • Mentor for the winner of the Laeneec Young Clinician Award at the American Heart Association Scientific Sessions,  2008
  • Guideline Chair, American Society of Echocardiography Clinical for Multimodality Cardiovascular Imaging of Patients with Pericardial Disease, 2013
  • Invited Visiting Professor at Mount Sinai Hospital for Anandi L. Sharma Visiting Pro-fessorship and Simon Dack, MD Memorial Lecture, Heart Failure with Preserved Ejection Fraction with live presentation at www.heart-talks.org, 2015
  • 13th Annual Tajik/Seward Lectureship, Cleveland Clinic HVI National Leadership and Diseases Center and IPU Development, 2015
  • Section Editor for Pericardial Disease for ACC.org., 2016
  • Elected President of the American Society of Echocardiography, 2017
  • Guest Co-Editor for Progress in Cardiovascular Disease 2017;59(4):325-26, 2017
  • Co-Editor of “Clinical Echocardiography Review:  A Self-Assessment Tool.” 2nd Edition.  Wolters Kluwer, 2017
  • Co-Editor of “Diastology:  Clinical Approach to Diastolic Heart Failure.”  Saunders Elsevier, Philadelphia, 2018

Innovations & Patents

  • Dr. Klein has pioneered the use of transesophageal-guided cardioversion in patients with atrial fibrillation in his landmark paper in the New England Journal of Medicine published in 2001 and the European Heart Journal in 2006. 

    He directs the largest pericardial center in the world which evaluates complex patients with different pericardial diseases.

Memberships

  • American Society of Echocardiography
  • American Heart Association
  • American College of Cardiology
  • Royal College of Physicians of Canada
  • Society of Cardiovascular Computed Tomography
Research & Publications

Research & Publications

See publications for Allan Klein, 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 3/14/2021, Dr. Klein 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

201 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
4.7 out of 5
Explains 4.7
Listens 4.6
Courtesy, Respect & Concern 4.7
Patient Rating of Doctor 4.8

27 Patient Comments

Reviewed on May 27, 2021

feel fortunate to see Dr Klein. absolutely love the Clinic and the courteous helpful and professional way everyone I interacted was.

Reviewed on May 19, 2021

Doctor Klein went out of his way to answer my question. He used his time with me to help me and be a Great instructor to his student Doctor that was with him. His student doctor was very good as well. Doctor Klein gave me his card to call him if I had questions. Tell him that I said Thank You!!!

Reviewed on May 19, 2021

Dr. Klein has a terrific bedside manner. He is very personable. Cleveland clinic is lucky to have him. As a matter of fact, the whole operation is first class. Well worth the 6 hour drive from Scranton that I made to get there.

Reviewed on May 19, 2021

I had a very pleasant visit with Dr. Klein and the resident doctor with him on May 19th.

Reviewed on May 12, 2021

Dr. Klein was very kind,and helpful in providing me with important information with which I could make a decision regarding my condition. He is wonderful.

Reviewed on Apr 28, 2021

I very much appreciated Dr. Klein. I got my appointment on short notice--apparently there was a cancellation. In any event, I made sure I was on time, but most importantly he was on time, listened as to why I came to the CC, conducted a thorough exam, ordered appropriate tests, etc. I will be returning to see him in late July as we try to understand the condition of my heart.

Reviewed on Mar 31, 2021

Dr. Klein is superb!

Reviewed on Mar 17, 2021

Fabulous -Truly Outstanding. My third visit to Cleveland Clinic. Worth the 375 mile drive. Best-of-the-best. Dr Klein was superb! What more can be said? Clone everyone at CC and replace at all US hospitals!

Reviewed on Feb 3, 2021

Dr Klein and the entire Cleveland Clinic staff is always punctual and very professional. I'm blessed to only live 3 hours away.

Reviewed on Jan 21, 2021

Dr Klein is wonderful! Very attentive and informative.

Reviewed on Jan 13, 2021

Dr Klein and the physician assistant were very conscientious and helpful. The experience was tremendous.

Reviewed on Jan 6, 2021

Dr. Klein is one of the best and it showed

Reviewed on Dec 9, 2020

DR Klein is the best.. He is kind .. he is a good listener and he is beyond intelligent

Reviewed on Sep 10, 2020

Dr. Klein is an expert in his field and I am very happy with the care I received from him. Ultimately I needed surgery to remove the pericardium, but he informed me of all the options along the way and was very attentive during the times I was able to meet with him personally.

Reviewed on Sep 3, 2020

I've seen Dr. Klein for nearly 5 years, and I have been so pleased with the care and compassion I've received. What I have been diagnosed with can be a pretty complex and frustrating disease, and he does a phenomenal job at explaining what's going on. I recommend Dr. Klein every chance I get!

Reviewed on Sep 3, 2020

I will let everybody know who needs a new heart doctor to come see him

Reviewed on Sep 2, 2020

Dr K was outstanding, teaching the young physician with him while primarily assessing me, explaining options and confirming that my decision for surgery was proper.

Reviewed on Aug 27, 2020

Wonderful and informative visit with DR Klein and the Fellow with him.

Reviewed on Aug 26, 2020

Dr Klein is very professional and worked well with the resident during the appt. the conversations occurred in my presence and I was allowed to provide input and ask questions. I felt very confident that I was receiving excellent care.

Reviewed on Aug 19, 2020

I felt much better about future care plan when Dr. Kline explained my case to his student? and recommended a further test to be done within 2 weeks.It was scheduled promptly and I am pleased how attentive Pat in MRI accommadated me?

Reviewed on Jul 16, 2020

Marie, Dr Klein's secretary did an amazing job helping us coordinate the testing and appointments

Reviewed on Jul 16, 2020

As always, Dr Klein is a fantastic physician and person

Reviewed on Jul 16, 2020

Dr. Klein was very knowledgeable, friendly, and to the point in describing what I needed to do to get a positive outcome to my medical condition

Reviewed on Jul 15, 2020

Always treated so very well by Dr Klein and his staff

Reviewed on Jul 15, 2020

Dr Klein & his staff are the best!

Reviewed on Jun 17, 2020

I was impressed with the amount of time Dr Klein spent with me and his willingness to stay late to talk with me after all the test were done and discuss a treatment plan with me.

Reviewed on Jun 11, 2020

Dr. Allan Klein was very good. His student doctor doing the preliminary questioning was not so good. No personality. Short on discussions. Over spoke on top of you. Made it uncomfortable. But understand he was and is learning.

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