Highlights
Age Groups Seen
- Adult
Languages
- English
Gender
MaleAbout Maran Thamilarasan
Biography
Maran Thamilarasan, MD, is 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. Board-certified as a Diplomate in cardiovascular disease, Dr. Thamilarasan also is certified Diplomate by the National Board of Medical Examiners. He is also certified by the National Board of Echocardiography. He has focused his specialty interests on echocardiography, valvular heart disease, hypertrophic cardiomyopathy, diseases of the aorta and coronary artery disease.
A native of India, Dr. Thamilarasan grew up in the United States. He did his undergraduate work in biomedical sciences and political science at the University of Michigan at Ann Arbor, graduating with Highest Distinction and inducted into Phi Beta Kappa. As an undergraduate, Dr. Thamilarasan received the James B. Angell Scholar Award and the Regents-Alumni Scholarship Award. He continued on at the University of Michigan to receive his medical degree, graduating cum laude. He was inducted into the Alpha Omega Alpha Medical Honor Society, and received the American Society of Clinical Pathologist's Award.
Dr. Thamilarasan did his internship and residency in internal medicine at the University of Michigan Medical Center. Cleveland Clinic awarded him a fellowship in cardiology followed by an advanced fellowship in cardiac imaging. He has been with the Cleveland Clinic since 1995.
He has authored or co-authored chapters in medical textbooks on mitral valve disease, thrombolytic therapy and transesophageal echocardiography, among others. He has published articles and abstracts on his specialty interests in peer-reviewed publications such as Circulation, American Heart Journal, and the American Journal of Cardiology. He has presented his clinical experiences and abstracts at courses sponsored by the American College of Cardiology and the American Society of Echocardiography.
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Education & Board Certifications
Education
- Fellowship: Cleveland Clinic, 2000
- Fellowship: Cleveland Clinic, 1998
- Residency: University of Michigan Health System, 1995
- Medical Education: University of Michigan Medical School, 1992
Additional Training
- Master's of Science, clinical research design and statistical analysis, University of Michigan, 2005
Professional Memberships
Research & Publications
See publications for this provider. (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
Cleveland Clinic physicians and scientists collaborate with industry to advance medical breakthroughs. These partnerships help commercialize discoveries for public benefit while maintaining scientific integrity. To ensure transparency and minimize potential bias, Cleveland Clinic reviews these relationships and publicly discloses when physicians/scientists receive significant compensation for consulting, serve in fiduciary roles, receive royalties, or hold equity interests related to their work. We manage potential conflicts through approval processes, annual reporting, and targeted management plans.
As of 2026-03-16, Dr. Thamilarasan 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.
Insurances Accepted
Ratings & Reviews
5 out of 5
274 ratings, 54 reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- 5 out of 5 starsReviewed on 4/7/2026
Dr Thamilarasan is so helpful explains everything, gets back to me on questions. Knowledgeable and kind! Grateful for his expertise!
- 5 out of 5 starsReviewed on 3/16/2026
Dr. Thamilarasan is exceptional. I am so thankful he is my Doctor.
- 5 out of 5 starsReviewed on 3/16/2026
Dr Tamilarasan was thorough, courteous, knowledgeable and provided excellent recommendations.
- 5 out of 5 starsReviewed on 3/10/2026
If there was an Excellent space to describe Dr Thamalarsan, I would have highlighted that box. He is an exceptional Dr. A n asset to the Cleveland Clinic
- 5 out of 5 starsReviewed on 3/10/2026
Dr. Thamilarasan had such great reviews, but he even exceeded our expectations. The entire staff in his area was great too - the techs, the nurse, receptionists. Very impressed.
- 5 out of 5 starsReviewed on 2/24/2026
Dr. Thalimarasan always send the time listening and answering my questions. Treats me with respect and has a very calming demeanor.
- 5 out of 5 starsReviewed on 2/24/2026
Dr. Thamalarasan is wonderful! He always makes me feel comfortable.
- 5 out of 5 starsReviewed on 2/9/2026
There have been times when employees of Cleveland Clinic have asked me my recommendation of a cardiologist and my answer Is always Dr. Thamilarasan! My husband and I think he is great and the absolute best! He listens, with concern, he shares all possibilities, and is always concerned.
- 5 out of 5 starsReviewed on 2/6/2026
The doctor was absolutely wonderful
- 5 out of 5 starsReviewed on 2/3/2026
Dr Thamilarasan was outstanding in making me feel comfortable, explaining everything in detail, answering all of my questions in a non-rushed manner. He discussed type of surgery, set up appointment to discuss wth CC surgeon. I felt like Dr T was very interested in my case and me as an individual. I'm almost 69 and this is the most professional and personal doctor I have probably ever experienced. I felt he put great value in my final decision on my treatment. He explained in great detail showing me the images from the MRI and Echocardiogram. Dr T is an outstanding doctor and communicator at the highest level. I'm very thankful for the level of care that I received during my visit. Outstanding! Thank you!
- 5 out of 5 starsReviewed on 2/3/2026
Dr T is very professional and knowledgeable
- 5 out of 5 starsReviewed on 2/3/2026
Doctor, let me know up front he might have to step out for a telehealth appointment (which he did not have to) which was very considerate and did not rush the appointment, took the time to explain everything clearly and fully, and took the time to answer a lot of questions my wife and I had
- 5 out of 5 starsReviewed on 1/26/2026
Dr. Thamilarasan is exceptional.
- 5 out of 5 starsReviewed on 1/26/2026
Dr. Thasmalarin has given me nothing but excellent care and always gets back to me in a timely manner if not before! I could not ask for a better doctor and his care.
- 5 out of 5 starsReviewed on 1/26/2026
Dr Thimalarasen went above and beyond. He is very concerned and caring!
- 5 out of 5 starsReviewed on 1/15/2026
Because peace of mind leads to good mental health, the confidence in the care and services of Cleveland Clinic and Doctors, staff care, arrangements and assistance, I feel very well cared for. Kudos to all!
- 5 out of 5 starsReviewed on 1/15/2026
Dr. Thamilarasan is an excellent cardiologist. He respects and cares for his patients and has the talent and experience that one expects from The Cleveland Clinic. I would highly recommend him to other patients.
- 5 out of 5 starsReviewed on 1/15/2026
Dr gave me a great check up and office conversation about my heart health!
- 5 out of 5 starsReviewed on 1/7/2026
Being followed by Dr. Thalmalarasan provides me peace of mind.
- 5 out of 5 starsReviewed on 12/30/2025
Dr Thamilarsin is the BEST! He's always patient, caring and thorough.
- 5 out of 5 starsReviewed on 12/22/2025
Have a great experience, Dr very easy to talk to
- 5 out of 5 starsReviewed on 12/9/2025
Dr. Thamilarasan Is most trustworthy!!
- 5 out of 5 starsReviewed on 11/24/2025
Dr. T sees so many patients in one day, yet he took the time to meet with me twice in one day! I appreciated the time he took to go over my test results and answered all of my questions.
- 5 out of 5 starsReviewed on 11/18/2025
Dr. Thalamarsin is exceptional. He called me the next day and reviewed my echo with me and filled up with speaking with his colleagues about a lab value that was off and how to proceed. Grateful he is my cardiologist
- 5 out of 5 starsReviewed on 11/18/2025
Very Happy with the care I receive from Dr. Tharamalarsan
- 5 out of 5 starsReviewed on 10/29/2025
Dr. Thamaleasan was very sincere and took time to explain what was going on and broke it down in simple explanations
- 5 out of 5 starsReviewed on 10/24/2025
Dr Thamilarasan is as good as he can be. Very professional, communicates perfectly and genuinely appears to care about me. Expresses appropriate recommendations and concerns.
- 5 out of 5 starsReviewed on 10/24/2025
Dr Thamilarasan is a great doctor. Incredible communicator. He expresses appropriate and professional concerns. Etc. He's the best!!
- 5 out of 5 starsReviewed on 10/21/2025
Dr. Thamilarsan is the kindest, most thoughtful cardiologist! He shows his concern about my health and treats me with dignity and respect. I actually look forward to seeing him and trust he has my best interest at heart
- 5 out of 5 starsReviewed on 10/10/2025
Lawanda in Dr. T's office is THE BEST!!
- 5 out of 5 starsReviewed on 10/10/2025
I have been a patient of Dr. T's since 2008. He has ALWAYS BEEN professional and ALWAYS LISTENS to my concerns and ALWAYS takes my feelings into consideration in regards to treatments. He listens to understand not just to reply.
- 5 out of 5 starsReviewed on 9/16/2025
Dr. Thamilarison is professional and knowledgeable. I trust my health in his expertise. He's kind and saved my life. I am forever grateful.
- 5 out of 5 starsReviewed on 9/16/2025
Dr. Thamalarasa was his usual and competent professional persona.
- 5 out of 5 starsReviewed on 8/25/2025
Doctor was terrific
- 5 out of 5 starsReviewed on 8/19/2025
Dr. Thamilarasan and the staff are second to none.
- 5 out of 5 starsReviewed on 8/19/2025
Dr. Thamilarasan is superb!
- 5 out of 5 starsReviewed on 8/5/2025
Outstanding bedside manner. Always a pleasure to deal with Dr Thamilarasan!
- 5 out of 5 starsReviewed on 7/22/2025
The doctor was knowledgeable, courteous, and answered all questions from myself and from my wife
- 5 out of 5 starsReviewed on 6/26/2025
Dr. Thamilarasan is outstanding. Highest excellence rating possible.
- 5 out of 5 starsReviewed on 6/24/2025
Dr explained every part of the echo with me and he is outstanding
- 5 out of 5 starsReviewed on 6/24/2025
Dr Thamilarasan is an excellent doctor; he is very open and discusses the findings and issues carefully. He shows true concern for my health and communicates and listens very well.
- 5 out of 5 starsReviewed on 6/24/2025
Dr Thamilarasan is one of the best Doctors I have ever had. He is very kind and makes you feel comfortable taking with him. He is very knowledgeable about my issues and is great at explaining in everyday terms so you understand it well.
- 5 out of 5 starsReviewed on 6/9/2025
Dr. Thamilarasan has been attentive and concerned about my heart issues. He has prescribed various tests to determine the cause of my shortness of breath and related issues. I appreciate his careful attention and help.
- 5 out of 5 starsReviewed on 6/9/2025
Dr. Thamilarasan is incredible. I trust him with my life, literally. He listens, is knowledgeable, shiows compassion, and has a great sense of humor. My case is complex and he, unlike others I have encountered, is working to find answers.
- 5 out of 5 starsReviewed on 5/27/2025
Able to get the care needed mostly due to Dr. Thamilrasan himself- he is unbelievably diligent in checking results, responding to messages, getting a patient in for testing or a visit when needed.The CCF system alone-not so much. It can be hard to navigate and get the care one feels is needed using the CCF HVTI processes alone
- 5 out of 5 starsReviewed on 5/27/2025
Dr. Thamilarisan is fantastic doctor and a wonderful person.
- 5 out of 5 starsReviewed on 5/27/2025
Very impressed with Dr T
- 5 out of 5 starsReviewed on 5/27/2025
I have had an unexpectedly complicated course after surgery, Dr. Thamilrasan has been astoundingly responsive, available and engaged throughout this trying period.I am eternally grateful to have him so involved in my care for this journey (which I do hope will resolve in near future)
- 5 out of 5 starsReviewed on 5/13/2025
Would definitely recommend and feel very blessed he is my Doctor! The best!!
- 5 out of 5 starsReviewed on 5/6/2025
Everything went very well with scheduling for my tests and doctor appointments.
- 5 out of 5 starsReviewed on 5/6/2025
I go out of my way recommending Dr. Thamilarasan and his staff to others.
- 5 out of 5 starsReviewed on 5/6/2025
Dr Thamilarisin always takes the time to answer my questions. He shows great concern for my well being.
- 5 out of 5 starsReviewed on 5/6/2025
Dr tham is the best, so patient and understanding
- 5 out of 5 starsReviewed on 4/29/2025
Dr. T. Was very helpful, informative and explained my situation in a way that I could understand. He also eased my anxiety about my condition. He was recommended to me by a family member and I couldn't be more pleased. I would surely recommend him to others.