John M. Clark, DO

Accepting new patients
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.

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Heart Failure Transplant Cardiology,
Cardiovascular Disease
Heart Failure Program,
Cardio-Oncology Program
Primary Practice:
Lankenau Heart Group
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  • Heart Failure Transplant Cardiology
    Board Certified since 2017
    Accepting new patients
  • Cardiovascular Disease
    Board Certified since 2017
    Accepting new patients

Conditions & Treatments




  • Medicare Railroad
  • Medicare Part A
  • Medicare Part A & B
  • Medicare Part B Only
  • Medical Assistance of PA
  • Medicare Advantage Delaware
  • Medicare Advantage Maryland
  • Medicare Advantage New Jersey
  • Medicare Advantage New York
  • Medicare Advantage Out of State


  1. 1
    100 East Lancaster Avenue
    Lankenau Medical Center, Heart Pavilion, Mezzanine Level
    Wynnewood, PA 19096
  2. 2
    1088 West Baltimore Pike
    Riddle Health Center 2, Suite 2500
    Media, PA 19063

Provider Bio

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.
Years Experience:
*Members of the Main Line Health medical staff are affiliated with Bryn Mawr Hospital, Lankenau Medical Center, Paoli Hospital and Riddle Hospital. Membership on the medical staff of any of our hospitals does not constitute an employment or agency relationship.

Education & Training


Awards & Memberships

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