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Dr. Mark Seifert, MD

Dr. Mark Seifert, MD

Age 60 Cardiology M
(28) 28 reviews

Telehealth available

Accepting New Patients


Dr. Mark Seifert, MD is a cardiology specialist in Phoenix, AZ. Dr. Seifert completed a residency at University Mich Med Center. He currently practices at HonorHealth Heart Group and is affiliated with Honorhealth Deer Valley Medical Center. He accepts multiple insurance plans.


  • Beth Israel Harvard University, Fellowship Hospital — 1995
  • University Mich Med Center, Residency Hospital — 1992
  • U Mich Med Ctr, Internship Hospital — 1990
  • University Mich Med Center, Internship Hospital — 1990
  • Johns Hopkins University School of Medicine, Medical School — 1989

Insurance Accepted

  • Aetna
  • American Republic
  • Amerigroup (Wellpoint)
  • Anthem
  • Anthem Blue Cross
  • AvMed
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of California
  • CareFirst Blue Cross Blue Shield
  • CareOregon
  • CareSource
  • Cigna
  • Commercial Insurance Company
  • Community Health Choice
  • CoreSource
  • Coventry Health Care
  • EmblemHealth
  • Fallon Community Health Plan
  • First Health (Coventry Health Care)
  • Golden Rule
  • Government Employees Health Association (GEHA)
  • Group Health Cooperative (GHC)
  • Health Net
  • HealthPartners
  • HealthPlus
  • HealthPlus Amerigroup
  • HealthSmart
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana
  • Husky Health
  • inHealth
  • INTotal Health
  • Mail Handlers Benefit Plan (MHBP)
  • Medica
  • Medicaid
  • Medico
  • Midwest Health Plan
  • Molina Healthcare
  • MultiPlan
  • Mutual of Omaha
  • Peach State Health Plan
  • Principal Life
  • Simply Healthcare Plans
  • Staywell (Wellcare)
  • Tricare
  • UnitedHealthCare
  • Wellcare of Georgia

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Compare with other Cardiology Specialists

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These providers are on the medical staff of Mayo
These providers are on the medical staff of Mayo.

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Sep 21, 2022
Dr. Seifert has saved my life not once, but TWICE. The first time I contracted Coxsakie virus and enlarged my heart. My Cardiologist wanted to ablate my AV node and insert a pacemaker in my early 30s. I said no, went to see Dr. Seifert, and he fixed me up. Dr. Seifert's first time kept me in normal sinus rhythm for 16 years. Then I got Covid-19 (yes, I was vaccinated) and shortly after the shortness of breath never went away but kept getting worse. My new Cardiologist wanted to go in there and cut stuff up after he found out my heart was only pumping at 20% with pulse in the 160s. I said no, went back to Dr. Seifert. Within a week after my second procedure I went back into NSR, pulse down to 66, shortness of breath gone and my heart is 100% back to normal according to my latest echo. This guy is an absolute genius and one of the best heart doctors in the world. Don't by fooled. Dr. Seifert has saved my life twice and he can save yours too.
— Sep 21, 2022
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Frequently Asked Questions

Dr. Seifert frequently treats Heart Disease, Cardiomyopathy, Dilated, and Supraventricular Tachycardia.  

Find contact information here to make an appointment.

Hospital Affiliations

  • Honorhealth Deer Valley Medical Center
  • HonorHealth John C. Lincoln Medical Center


  1. HonorHealth Heart Group

    1. 1
      HonorHealth Heart Group
      9250 N 3rd St Ste 3010, Phoenix, AZ 85020 (480) 246-3000
  1. Charles Matlin, General and Vascular Surgery

    1. 2
      Abrazo Medical Group Bethany - Cardiology
      16222 N 59th Ave Ste B145, Glendale, AZ 85306 (602) 978-1121
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(480) 246-3000