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Department Cardiovascular Medicine
Primary Location Hillcrest Medical Building 2
Type of Doctor Adults Only
Languages English, Hindi, Kannada
Surgeon No
Hillcrest Medical Building 2
Primary Location

Hillcrest Medical Building 2


Additional Locations

Specialties & Treatments

Treatment & Services

  • Cardiovascular Medicine Department
  • Regional Heart and Vascular
View all 2 Treatment & Services +


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About T. Mark Sequeira, MD

T Mark Sequeira, MD, is an interventional cardiologist in the Robert and Suzanne Tomsich Department of Cardiovascular Medicine in the Sydell and Arnold Miller Family Heart, Vascular & Thoracic Institute. He is board certified in internal medicine and cardiovascular disease.

Dr. Sequeira earned his medical degree from St. John’s Medical College of Bangalore University in his native country of India. He began his post-graduate training in psychiatry at St. John’s Medical College and All India Institute of Mental Health in Bangalore, India. 

In 1974 he relocated to the United States to become a resident in internal medicine at St. Luke’s Hospital, Cleveland. After completing his residency he continued at St. Luke’s as a fellow in cardiology while working part-time as an emergency medicine physician. He completed his training in cardiology with a three-year fellowship at Lenox Hill Hospital-St. Mary’s Hospital, New York.

Dr. Sequeira joined Cleveland Clinic in 2013 from private practice with Northern Ohio Medical Services, Inc. in Cleveland. He has been affiliated with Cleveland Clinic Hillcrest Hospital and previously was director of the Cardiac Catheterization Lab at St. Luke’s Hospital and an assistant clinical professor, Case Western Reserve University School of Medicine.

He is a member of the American College of Cardiology, American Society of Echocardiography and the Cleveland Academy of Medicine.

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Lenox Hill Hospital
New York, NY USA

Fellowship - Saint Luke's Medical Center
Cleveland, OH USA

Residency - Saint Luke's Medical Center
Internal Medicine
Cleveland, OH USA

Internship - St. Luke`s Hospital
Internal Medicine
Cleveland, OH USA

Medical Education - All India Institute of Mental Health
Post Graduation in Psychiatry

Residency - Saint John's Medical College
Senior House Officer

Medical Education - Saint John's Medical College

Additional Training

Professional Highlights


  • Internal Medicine
  • Internal Medicine - Cardiovascular Disease

Specialty Interests

cardiac catheterizations and coronary intervention, nuclear stress testing, echocardiography, cardioversions

Awards & Honors

Innovations & Patents


  • American College of Cardiology
  • American Society of Echocardiography
  • Cleveland Academy of Medicine
Research & Publications

Research & Publications

See publications for T. Mark Sequeira, 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 5/18/2020, Dr. Sequeira 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

220 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 4.8

21 Patient Comments

Reviewed on Feb 2, 2021

great doc and nurse

Reviewed on Dec 8, 2020

Dr. Sequeira is very thorough & explains things well. The nurses/technicians who did my echo & ekg were very nice too.

Reviewed on Nov 2, 2020

Dr sequiera is awesome. he truly cares about my well being.

Reviewed on Oct 22, 2020

Service was very good. I was on time and so were they. When I said the automatic bp cuff was causing pain, my pressure was taken manually. The doctor answered all of my questions.

Reviewed on Oct 21, 2020

Dr. Sequeira is very thoughtful, caring and listens well. I trust him and I'm glad he is my doctor.

Reviewed on Oct 21, 2020

i love Dr Saquara. His kindness and caring for his patients shows thru his practice and his nurse's.

Reviewed on Oct 13, 2020

I felt Dr. Sequeria was very thorough. He asked a lot of questions and listened to what I had to say.

Reviewed on Oct 7, 2020

The doctors was very thorough in explaining the numbers and my lab results to me

Reviewed on Oct 1, 2020

My doctor explained things to me about my condition. He was very patient and understanding..

Reviewed on Sep 9, 2020

Dr Sequeira is very courteous and concerned

Reviewed on Sep 2, 2020

Dr. Thomas M Sequeira MD always greets me in a friendly manner and asks how I am feeling. He makes sure that I am continuing to follow his suggestions.

Reviewed on Aug 21, 2020

I am very pleased with Dr. Sequeira and have recommended him to friends.

Reviewed on Aug 17, 2020

i like Dr Sequera

Reviewed on Aug 14, 2020

Great experience always with the Doctor and his office staffs! Thank you!

Reviewed on Aug 10, 2020

Very good physician experience

Reviewed on Aug 4, 2020

have recommended Dr Sequeira to a couple of friends

Reviewed on Jun 23, 2020

Dr. Sequeira is Excellent. His nurse who admits me is also excellent. Very pleased .

Reviewed on May 28, 2020

It was a good experience. Speaking to Dr. Sequeira by phone was no different than speaking to him in person at the office. He is always pleasant and answers any questions that I have.

Reviewed on May 18, 2020

The visit went well. The doctor and I were able to exchange guestions and answers . I was satisfied with the ability to addess my concerns and I believe the doctor was able to attain the information he needed to assess my health status. It was so nice to visit the doctor face to face in a safe setting considering the challenges we are currently facing.

Reviewed on May 18, 2020

As always, the doctor was very thorough, knowledgeable, compassionate, and a fine communicator.

Reviewed on May 18, 2020

This visit went well. The difference being that non of the customary evaluations requiring equipment were available. But of course that is a given. If I had any concerns I am sure the doctor would have told me to come in a see him.

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