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Dr. John Mahmarian, MD

Dr. John Mahmarian, MD

Cardiology*
40+ years of experience

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.

4.8 Star Rating
Based on 17 reviews 4.8 Star Rating (17 reviews)

Houston Methodist DeBakey Cardiology Associates

6550 Fannin St Ste 1901 Houston, TX 77030
Telehealth available

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.
Read our methodology

  • Above average experience
  • Good hospital quality
  • Good patient ratings
  • No healthcare sanctions

Experience Check

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Dr. Mahmarian's Reviews

Likelihood to recommend Dr. Mahmarian

4.8

17 ratings, 14 with a written review
5 Star
94%
94%
4 Star
0%
0%
3 Star
0%
0%
2 Star
6%
6%
1 Star
0%
0%

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RecentHighestLowestMost Helpful
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Apr 08, 2025
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What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Apr 08, 2025
×Post a ResponseAre you Dr. John Mahmarian, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Mar 19, 2025
×Post a ResponseAre you Dr. John Mahmarian, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Feb 09, 2025
×Post a ResponseAre you Dr. John Mahmarian, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Feb 04, 2025
×Post a ResponseAre you Dr. John Mahmarian, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Dec 20, 2024
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What went well
No results
What could be improved
No results
Helpful
Oct 29, 2024
×Post a ResponseAre you Dr. John Mahmarian, MD?
What went well
  • Explained conditions well
What could be improved
No results
Helpful
Jun 25, 2024
×Post a ResponseAre you Dr. John Mahmarian, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Jun 06, 2024
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What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
May 25, 2024
×Post a ResponseAre you Dr. John Mahmarian, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
May 25, 2024
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What went well
  • Appointment scheduling
  • Staff friendliness
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
Helpful
Disappointed – Oct 31, 2022
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Nancy & Tom – Jun 04, 2017
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
  • Staff wasn't friendly
2 people found this helpful
Helpful
Lawrence Ross Rucker in Katy, TX – Jan 14, 2016
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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, 1986
  • Baylor College Affil Hospital

    Residency Hospital, 1983
  • Baylor College Affil Hospital

    Internship Hospital, 1981
  • New York Medical College

    Medical School, 1980
American Board of Medical Specialties®
American Board of Internal Medicine®
Cardiovascular Disease
Internal Medicine
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Dr. Mahmarian is a Healthgrades Choice provider in Cardiology

    Read our methodology

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    Locations

    Houston Methodist DeBakey Cardiology Associates

    Houston Methodist DeBakey Cardiology Associates6550 Fannin St Ste 1901 Houston, TX 77030
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