Highlights
Age Groups Seen
- Adult
Languages
- English
Gender
MaleAbout John Mansour
Biography
John S. Mansour, MD, MBA, is a cardiologist in the Section of Clinical Cardiology in the Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Sydell and Arnold Miller Family Heart, Vascular & Thoracic Institute. He sees patients at Cleveland Clinic Main Campus.
In addition to office visits, Dr. Mansour 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: General cardiology, coronary artery disease, dyslipidemia (lipid disorders), structural heart disease, cardiovascular disease, hypertension (high blood pressure)
Number of Patients Treated: Physicians in the Sydell and Arnold Miller Family Heart, Vascular & Thoracic Institute annually perform approximately 10,000 cardiac catheterizations, a minimally invasive procedure for diagnosing and treating heart disease. Dr. Mansour has performed more than 1,000 cardiac catheterizations in the past three years.
Success Rates: Cleveland Clinic is nationally and internationally renowned for its cardiovascular care. To learn about patient outcomes for coronary catheterization at Cleveland Clinic compared with outcomes reported at other hospitals, go to http://my.clevelandclinic.org/heart/about-heart-vascular-institute/treatment-outcomes.aspx.
Education and Training: After earning a bachelor’s degree in management cum laude from Case Western Reserve University, Cleveland, Ohio, Dr. Mansour went on to earn a Master’s of Business Administration from the Weatherhead School of Management at Case Western Reserve University in 2002 and his medical degree from Case Western Reserve University School of Medicine in 2006. He completed his internal medicine residency and fellowships in cardiovascular medicine and interventional cardiology at University Hospitals Case Medical Center, Cleveland, Ohio. Dr. Mansour was named to the Cleveland Clinic staff in 2016.
About Dr. Mansour: I love practicing cardiology because I feel like it is the most rewarding field in medicine. We have many treatment options that can help our patients that have a dramatic impact on patients’ lives, both in the acute setting and over the long term.
Leisure Activities: Dr. Mansour enjoys golf, spending time with his wife and daughter and is an avid Cleveland sports fan
Locations
- Cleveland Clinic Main Campus
- 9500 Euclid Avenue, Cleveland, OH 44195
- Get Directions
- Cleveland Clinic Main Campus
- 9500 Euclid Avenue, Cleveland, OH 44195
- Get Directions
Education & Board Certifications
Education
- Fellowship: University Hospitals of Cleveland, 2014
- Fellowship: University Hospitals of Cleveland, 2013
- Residency: University Hospitals of Cleveland, 2009
- Medical Education: Case Western Reserve University School of Medicine, 2006
- Graduate School: Case Western Reserve University Weatherhead School of Management, 2002
- Undergraduate: Case Western Reserve University School of Medicine, 1999
Board Certifications
- Cardiovascular Disease: American Board of Internal Medicine, 2015
Additional Training
Interventional cardiology
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 2025-09-24, Dr. Mansour 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
4.8 out of 5
214 ratings, 20 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.
- 4 out of 5 starsReviewed on 4/6/2026
Dr Mansour was very good at responding to all my questions, which I appreciate very much.
- 5 out of 5 starsReviewed on 4/6/2026
I''ve already sent others to the Doctor
- 5 out of 5 starsReviewed on 1/13/2026
Dr Mansour and his team was amazing
- 5 out of 5 starsReviewed on 12/22/2025
All of my pre-surgery appointments were set up for me by Dr Roselli's office, including the appointment with Dr Mansour
- 5 out of 5 starsReviewed on 12/8/2025
Dr Mansour is caring and a good listener. I feel very comfortable discussing my medical issues and his recommendations.
- 5 out of 5 starsReviewed on 11/10/2025
Dr Mansour is genuinely concerned about the welfare of my condition and health. It's the pharmaceutical companies that can't relate to the financial conditions of their patients. It's inconceivable that they create medication that would benefit health conditions that patients can't afford. They need to get in touch with reality.
- 5 out of 5 starsReviewed on 11/4/2025
Wonderful and compassionate doctor.
- 5 out of 5 starsReviewed on 10/23/2025
Excellent job by Dr. Mansour explaining my situation and what options were available.
- 5 out of 5 starsReviewed on 10/8/2025
Felt completely cared for and have the utmost confidence in my doctor as the team.
- 5 out of 5 starsReviewed on 9/24/2025
Have referred two additional pastor this doctor
- 5 out of 5 starsReviewed on 9/23/2025
Cleveland Clinic and Dr. Mansour exceeded my expectations.
- 5 out of 5 starsReviewed on 8/12/2025
Like Dr. Mansour.
- 5 out of 5 starsReviewed on 8/12/2025
Dr. Mansour was very patient answering all my questions.
- 5 out of 5 starsReviewed on 8/4/2025
Dr. Mansour is well informed and responds respectfully to my requests. Furthermore, he is affable and represents the best that our profession offers.
- 5 out of 5 starsReviewed on 8/4/2025
The. Doctor listens to your concern and answer all your questions.
- 5 out of 5 starsReviewed on 7/15/2025
Dr Masour had excellent communication skills and answered all my questions and concerns. He is kind, knowledgeable and considerate
- 5 out of 5 starsReviewed on 7/15/2025
Dr Hammer had been my cardiologist for years. I am very happy with the recommendation to see Dr Mansour in follow up. He was concerned and answered all my questions regarding testing previoudly ordered by various medical personnel at the Clinic.
- 5 out of 5 starsReviewed on 6/10/2025
I see Dr. Mansour for an annual follow up. I genuinely enjoy our time together and appreciate his attention and calm bed side manner.
- 5 out of 5 starsReviewed on 5/29/2025
My appt was very good . I was seen right away and had a nice appt with Dr .Mansour.
- 5 out of 5 starsReviewed on 5/12/2025
DR. MANSOUR was veryinformative abd listened to my concerns. He suggested care options and took time with me. I was very rattled after difficulty with wait time with valet parking and EKG running behind. I was concerned about missing my appointment. He was very patient.