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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 4/10/2022, 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

168 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
4.8 out of 5
Explains 4.8
Listens 5
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.9

42 Patient Comments

Reviewed on Apr 13, 2022

Dr. Klein is excellent. I was referred to him by my Cardiologist her in Michigan and am working with both of them to treat my Pericarditis. I am very glad that I am see Dr. Klein, he has turned my condition around and I am well down the path to be healed.

Reviewed on Apr 7, 2022

Great experience. Dr.Kline and rest of Cleveland clinic took great care of me.

Reviewed on Mar 17, 2022

Dr. Klein and his staff couldn't have been more caring!

Reviewed on Mar 17, 2022

I am very pleased having Dr. Klein and his staff as my cardiologists. Dr. Klein is very personable and took a lot of time with me. He was very thorough and enthusiastically answered all of my questions and concerns.

Reviewed on Jan 20, 2022

The doctor was informative listened to our questions answered them satisfactorily what more could you want thanks

Reviewed on Jan 13, 2022

Dr. A. Klein is absolutely the best. I would recommend him to anyone.

Reviewed on Jan 13, 2022

All doctors I saw were extremely knowledgeable, helpful and professional.

Reviewed on Jan 12, 2022

Dr. Klein has been my cardiologist for 31 years. I have complete confidence in him and his staff.

Reviewed on Jan 6, 2022

Good experienceDr. Klein was very professional and c look forward to Future appts. Dt. Klein and his assistant made me feel I was in the best of hands.Aring About my situation . I felt very welcomed here.

Reviewed on Dec 15, 2021

Overall great experience. The Dr and staff were very knowledgeable and I felt that I'm in the best of care

Reviewed on Dec 9, 2021

Dr. Klein is always so kind and really listens to me.

Reviewed on Dec 9, 2021

Great experience with office staff for my doctor. Always helpful

Reviewed on Nov 24, 2021

Doctor Klein is a CCF asset!!

Reviewed on Nov 24, 2021

Again... Great Doctor!

Reviewed on Nov 18, 2021

Dr Klein and his associate were top notch. You could put some more signs on the parking garage. That's always a struggle to find

Reviewed on Nov 11, 2021

Doctor Allan Klein was excellent. He spent a great deal of time understanding my medical condition and then making recommendations. He made extra time to meet with me at the end of the day and after all my testing was complete to review the results with me and give me my next steps. I felt valued, respected and that my medical concerns were a priority.. He was wonderful. I drove in from SW Michigan to meet with him and spend the day at Cleveland Clinic.. I will continue making those trips!

Reviewed on Oct 28, 2021

Dr Klein is the best

Reviewed on Oct 28, 2021

Dr Klein was thorough and provided me with the information I had been seeking regarding pericardial issue. He even called me at home last night to confirm next steps and RX refill. He's the best!!

Reviewed on Oct 28, 2021

Doctor Klein is a terrific doctor. However I always find he is late for his appointment with me.

Reviewed on Oct 28, 2021

Doctor Klein's delays must be taken into account.

Reviewed on Oct 27, 2021

I have a great relationship with Dr Klein. Couldn't be better

Reviewed on Oct 21, 2021

I really appreciate how Dr. Klien took the time to ask me questions and get to know my case. I didn't feel like just a number and he made sure when he did admit me that I would have everything taken care of.

Reviewed on Oct 20, 2021

Dr Klein is a excellent Dr. That I would highly recommend.

Reviewed on Oct 7, 2021

Dr Klein and the resident were very attentive, thorough, and took all the time I needed during the exam.

Reviewed on Oct 7, 2021

Dr Klein's new assistant Deb was extremely professional and helpful to get additional appointments.

Reviewed on Sep 30, 2021

I am reassured and much less concerned about any complications that are always a possibility given my valve repair in 1999, following my annual checkups with Dr. Klein. He is very thorough, professional, and personable. I wouldn't want any other doctor caring for me.

Reviewed on Sep 15, 2021

Already recommended Dr.Klein to an associate of mine

Reviewed on Sep 9, 2021

Both Dr Klein and his resident, Dr Jain both listened to my concerns and explained the results of my tests. Excellent knowledge and familiarity with my condition and history.

Reviewed on Sep 2, 2021

Great Doctor. Very emphatic.

Reviewed on Sep 1, 2021

Very good experience. Staff and doctor are all extremely professional.

Reviewed on Sep 1, 2021

Dr. Alan Klein is a leader, if not the most knowledgeable doctor in treating pericarditis in the US. He is professional, thorough and cares for his patients.

Reviewed on Aug 26, 2021

The Doctor took the time to review all my lab tests and answer all questions

Reviewed on Aug 26, 2021

Dr Klein is an excellent Doctor.

Reviewed on Aug 25, 2021

Dr.Klein has been taking care of me for the past 4+ years. He is the best in the business and has been taking care of my health issues, I have the best of confidence in him.

Reviewed on Aug 25, 2021

Dr Klein is the best

Reviewed on Aug 18, 2021

I am very pleased to get excellent care from Dr. Klein and his staff

Reviewed on Aug 18, 2021

Excellent, knowledgeable physician!

Reviewed on Jul 28, 2021

I have seen a lot of doctors. None were as courteous and explained things as well as Dr. Klein. He took the time needed for my wife and I to understand and make decisions.

Reviewed on Jul 15, 2021

Dr. Klein is always very courteous and always explains everything well I always tell my friends and family how good he is and recommend him

Reviewed on Jul 8, 2021

Very impressed with how caring and knowledgeable Dr Klein is. He listens, explains and educates in such a caring way.

Reviewed on Jun 30, 2021

Dr Klein is the best!

Reviewed on Jun 24, 2021

I am very appreciative of the treatment and care provided by Dr. Klein. He is wonderful and his expertise and disposition is invaluable to me and my wife.

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