John M. Clark, DO

Headshot of John M. Clark, DO

The role of the Lankenau Heart Group physician is one of both educator and healer, with the focus to treat each individual patient to improve longevity and quality of life. Not every patient needs to be treated in the same way, and our physicians take the patient's preference into account when tailoring a personalized course of treatment for them. We believe it is key to listen to our patient and their family members to make sure they have a complete understanding of their cardiac illness as well as their treatment options. For the best possible outcome, it is valuable for both the patient and their family to have a voice in the patient's care and be invested in their treatment plan.

Heart Failure/Transplant Cardiology
Primary Practice:
Lankenau Heart Group
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Heart Failure/Transplant Cardiology

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Lankenau Heart Group

100 East Lancaster Avenue
Lankenau Medical Center, Heart Pavilion, Mezzanine Level
Wynnewood, PA 19096

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Lankenau Heart Group

1088 West Baltimore Pike
Riddle Health Center 2, Suite 2500
Media, PA 19063

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John M. Clark, DO

Dr. Clark specializes in evaluation and management of the diverse spectrum of adult patients presenting with heart failure, with a particular interest in right-sided heart failure and pulmonary hypertension. He also has special interest in: Diagnosis of unexplained shortness of breath; Management of all FDA-approved durable left-ventricular assist devices (LVADS) and acute mechanical circulatory suppor; Evaluation and management of coronary artery disease, structural/valvular heart disease, cardiac arrhythmia, and all other major cardiac conditions; Evaluation and management of patients before and after heart transplan. He is a certified specialist in ECMO as well as a variety of cardiac imaging modalities, including adult echocardiography, cardiac computed tomography, and nuclear cardiology.

Primary Affiliation:
Lankenau Medical Center
Years Experience:

Education and Training


  • Medical School
    Philadelphia College of Osteopathic Medicine - 2011
  • Residency
    Internal Medicine, Lankenau Medical Center - 2014
  • Fellowship
    Cardiovascular Disease, Lankenau Medical Center - 2017
  • Fellowship
    Heart Failure/Transplant Cardiology, Temple University School of Medicine - 2018

Awards and Memberships

  • Philadelphia Magazine Top Doc - 2024
  • American College of Cardiology
  • Heart Failure Society of America

Patient Reviews

Overall Rating

4.9 out of 5 with 148 ratings and 21 comments
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