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Dr. John Duncan, MD

Dr. John Duncan, MD

Cardiology*

Dr. John Duncan, MD is a cardiologist in Plano, TX. Dr. Duncan has extensive experience in Adult Congenital Heart Conditions. He is affiliated with Medical City Plano. He is accepting new patients and telehealth appointments.

4.5 Star Rating
Based on 12 reviews 4.5 Star Rating (12 reviews)

Heartplace

3801 W 15th St Ste 320 Plano, TX 75075
Telehealth available
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Compare Dr. Duncan with our nearby Cardiologists at Medical City Heart Hospital.

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Make an appointment at Medical City Heart Hospital today at
(972) 456-9314.

Dr. Duncan 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

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Dr. Duncan's Reviews

Likelihood to recommend Dr. Duncan

4.5
12 ratings, 5 with a written review
5 star
83%
83%
4 star
0%
0%
3 star
0%
0%
2 star
17%
17%
1 star
0%
0%

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Excellent service in terms of knowledge, professionalism, caring of patient.
What went well
No results
What could be improved
No results
Helpful
Mar 06, 2025
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very friendly, knowledgable, very essay to talk to
What went well
  • I felt respected
  • 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
Helpful
cliff – Sep 19, 2024
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Saved Husband
Dr Duncan has been my husband’s doctor for years - through stent placement and bypass surgery. Last summer he stepped out of his cardiologist hat when he strongly recommended my husband see a urologist, even though his GP said his high numbers were caused by his age. The urologist did some test and discovered he had a golf ball size malignant tumor on his left kidney. Fortunately he was able to have the kidney removed and is now cancer free. Dr Duncan is caring, patient, and through. We just love him.
What went well
No results
What could be improved
No results
Helpful
Sharon Stafford – Apr 10, 2023
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Great professional cardiologist. My experience with Dr. Duncan over last 15 years has been great
What went well
  • Office environment
  • 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 other person found this helpful
Helpful
Aug 21, 2019
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Good listener, well prepared.
What went well
  • Office environment
  • 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
2 others found this helpful
Helpful
TX, TX – Nov 10, 2018
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Know Before You Go

About Me

biography

Dr. John Duncan is board certified in cardiovascular disease, nuclear cardiology, and internal medicine, and specializes in general and nuclear cardiology and vascular medicine.

  • Cardiology

  • Nuclear Cardiology

  • Internal Medicine

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Good Samaritan Medical Center

    Fellowship Hospital, 1985

  • Good Samaritan Medical Center

    Residency Hospital, 1983

  • East Tennessee State University

    Internship Hospital, 1980
American Board of Medical Specialties®
American Board of Internal Medicine®
- 
Cardiovascular Disease
- 
Internal Medicine
American Board of Nuclear Medicine
- 
Nuclear Medicine†
†Self designated 
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.

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.

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Dr. Duncan is a Healthgrades Choice provider in Cardiology

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    Locations

    Heartplace

    Heartplace Plano3801 W 15th St Ste 320 Plano, TX 75075
    1
    • Call
    • Fax
    • Hours
      • Mon: 8:00am - 4:30pm
      • Tue: 8:00am - 4:30pm
      • Wed: 8:00am - 4:30pm
      • Thu: 8:00am - 4:30pm
      • Fri: 8:00am - 4:30pm
      • Sat: closed
      • Sun: closed
    • Directions
    (972) 985-8838
    See all Cardiologists in Plano, TX