

Dr. John Mahmarian, MD
Dr. John Mahmarian, MD is a cardiologist in Houston, TX and has over 40 years of experience in the medical field. He graduated from NEW YORK Medical College in 1980. He is affiliated with Houston Methodist Hospital. He is accepting new patients and telehealth appointments.
Houston Methodist DeBakey Cardiology Associates
6550 Fannin St Ste 1901 Houston, TX 77030Compare with other Cardiologists
Compare Dr. Mahmarian with our nearby Cardiologists at HCA Houston Healthcare Medical Center.
Make an appointment at HCA Houston Healthcare Medical Center today at
(713) 352-2952.
Dr. Mahmarian is a Healthgrades Choice provider in Cardiology
The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
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- Above average experience
- Good hospital quality
- Good patient ratings
- No healthcare sanctions
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Dr. Mahmarian's Reviews
Likelihood to recommend Dr. Mahmarian
4.8
5 Star | 94% | 94% |
4 Star | 0% | 0% |
3 Star | 0% | 0% |
2 Star | 6% | 6% |
1 Star | 0% | 0% |
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How was your experience with Dr. Mahmarian?Overall Patient Satisfaction
Likelihood of recommending Dr. Mahmarian to family and friends is 4.8235292 out of 5
About Me
biography
Dr. John Mahmarian, MD is a cardiologist in Houston, TX and has over 40 years of experience in the medical field. He graduated from NEW YORK Medical College in 1980. He is affiliated with Houston Methodist Hospital. He is accepting new patients and telehealth appointments.Cardiology
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Baylor College Of Medicine
Fellowship Hospital, 1986Baylor College Affil Hospital
Residency Hospital, 1983Baylor College Affil Hospital
Internship Hospital, 1981New York Medical College
Medical School, 1980
Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.
Learn more about medical license public record checkSex differences in machine learning computed tomography-derived fractional flow reserve, 2022-08-16
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Locations
Houston Methodist DeBakey Cardiology Associates
Affiliated Hospitals
- Recipient of 67
hospital awardsAmerica’s 100 Best Hospitals for Cardiac Care Award™ (2025, 2024, 2023)
Top 1% in the nation for providing the highest clinical quality year over year
View all awardsAmerica's 100 Best Hospitals Award™ (2025, 2024, 2023)
Top 1% in the nation for providing the highest clinical quality year over year
View all patient feedbackHow patients felt about the care they received at this hospital.
86%Patients said they were given information about recovering at home2% higher than the national average
80%Patients said that doctors always listened to them and explained things well4% higher than the national average
Compare with other Cardiologists
Compare Dr. Mahmarian with our nearby Cardiologists at HCA Houston Healthcare Medical Center.
Make an appointment at HCA Houston Healthcare Medical Center today at
(713) 352-2952.
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