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Dr. Mordecai Klein, MD

Dr. Mordecai Klein, MD

Age 64 Cardiology M
(43) 43 reviews

Telehealth available

Accepting New Patients


Dr. Mordecai Klein, MD is a cardiology specialist in Plano, TX. Dr. Klein completed a residency at Michael Reese Hosp Med Ctr. He currently practices at Harmony Heart Group and is affiliated with Medical City Plano. He accepts multiple insurance plans. Dr. Klein is board certified in Cardiology.


  • U Tex-Dallas/Parkland, Fellowship Hospital
  • Beaumont Hospital - Royal Oak Campus, Fellowship Hospital — 1991
  • Michael Reese Hosp Med Ctr, Residency Hospital — 1986
  • Michael Reese Hosp Med Ctr, Internship Hospital — 1984
  • Yeshiva University, Undergraduate School — 1979

Insurance Accepted

  • Aetna
  • Ambetter
  • Anthem
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Texas
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • Coventry Health Care
  • First Health (Coventry Health Care)
  • HealthFirst
  • HealthSmart
  • Humana
  • Mail Handlers Benefit Plan (MHBP)
  • Medicaid
  • Medico
  • Molina Healthcare
  • MultiPlan
  • National Elevator
  • POMCO Group
  • Principal Financial Group
  • Principal Life
  • UniCare
  • UnitedHealthCare
  • Universal American

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  1. Harmony Heart Group

    1. 1
      Harmony Heart Group
      4701 Old Shepard Pl Ste 160, Plano, TX 75093 Existing Patients: (972) 703-9576

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Today was my first visit with Dr. Klein in his office after having a very frustrating and depressing experience at another cardiologist at a different clinic. I have a complicated, chronic condition that has multiple components and I was told in the past by other cardiologists "not many people treat this because the condition is so complicated and you should be lucky that I will treat you." Well, I was very apprehensive coming in and trying to explain my symptoms, asking for help and for him to treat me. Dr. Klein is AMAZING. I have never had a doctor, let alone a specialist, sit down with me for as long as he did, ask me questions, actually listen to my responses, let me speak and share my ideas and answered my questions. He was genuine, you could tell he cared. His staff was efficient and very nice. I would absolutely recommend Dr. Klein to everyone. I will be moving my husband's care to him as well. I cannot express enough how grateful I felt and how heard I felt after my appt.
— Jan 30, 2020
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Dr. Mordecai Klein, MD
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Frequently Asked Questions

Dr. Klein frequently treats Heart Conditions.  

Hospital Affiliations

  • Medical City Plano
  • The Heart Hospital Baylor Plano