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Nicholas Mahr

Dr. Nicholas C. Mahr, MD

Cardiovascular DiseaseInternal Medicine


Dr. Nicholas Mahr is an interventional cardiologist at the St. Alexius Heart & Lung Clinic. After receiving his medical degree from St. George's University in St. George, Grenada, Dr. Mahr finished a residency in internal medicine at Hackensack Medical Center, Hackensack, N.J. He completed a fellowship in critical care at Mount Sinai Medical Center, New York, N.Y., and a fellowship in cardiology at Mount Sinai Medical Center of Greater Miami, Miami Beach, Fla. In addition, he completed fellowships in noninvasive cardiology and interventional cardiology at Hartford Hospital, Hartford, Conn. Dr. Mahr is board certified in internal medicine by the American Board of Internal Medicine and board certified in nuclear cardiology by the American Society of Nuclear Cardiology. He is board eligible in general and interventional cardiology as well as critical care medicine. Dr. Mahr is a member of the American College of Cardiology, American Society of Nuclear Cardiology, American College of Physicians Society of Critical Care Medicine and American Society of Echocardiography.
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Heart & Lung Clinic, Minot Medical Plaza
310 N 10th St
Bismarck, ND, 58501
Heart & Lung Clinic
310 N 10th St
Bismarck, ND, 58501
  • Accepting New Patients
  • Medicare Accepted
  • Medicaid Accepted
Mon8:00 am - 6:00 pm
Tue8:00 am - 6:00 pm
Wed8:00 am - 6:00 pm
Thu8:00 am - 6:00 pm
Fri8:00 am - 6:00 pm
  • Accepting New Patients
  • Medicare Accepted
  • Medicaid Accepted
608 Us 12
Bowman, ND, 58623



Medical School
St Georges University
Graduated 1986
Mount Sinai Medical Center Of Florida


Please verify insurance information directly with your doctor's office as it may change frequently.
  • Humana ChoiceCare Network PPO
  • Aetna Choice POS II
  • BCBS Blue Card PPO
  • Multiplan PPO
  • First Health PPO
  • UHC Choice Plus POS
  • UHC Options PPO
  • Aetna Signature Administrators PPO
  • UHC Navigate POS
  • UHC Medica Choice
  • Humana Choice POS



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