Kate Elfrey Profile Image


  • Cardiology

Board Certifications:

  • Internal Medicine
  • Cardiology


  • English


  • Mercy Personal Physicians at Overlea
  • Mercy Personal Physicians at Lutherville
  • Mercy Personal Physicians at Glen Burnie
  • McAuley Plaza at Mercy

Kate Elfrey, D.O.

M. Kate Elfrey, D.O., is a Board Certified cardiologist with The Heart Center at Mercy in Baltimore, Maryland. Dr. Kate Elfrey sees patients in Downtown Baltimore, as well as Mercy Personal Physicians at OverleaMercy Personal Physicians at Lutherville and Mercy Personal Physicians at Glen Burnie. She focuses on disease prevention and careful management of heart conditions through advanced diagnostic testing and proactive patient care.

Board Certified Baltimore Heart Specialist

Dr. Elfrey is Board Certified by the American Osteopathic Board in Cardiology and Internal Medicine. She provides diagnosis and management of a wide range of cardiovascular conditions and heart disease such as atrial fibrillation, cardiovascular disease and atherosclerosis.

Women's Heart Health Advocate

Dr. Kate Elfrey is experienced in advanced diagnostic testing and stresses proactive disease prevention, including nutrition awareness as well as mindfulness. She has a particular interest in women's heart health as it relates to overall wellness. Dr. Elfrey works with her patients to help them understand the symptoms and risks unique to women, and works with each of them to develop long-term management plans.

Education & Fellowships
  • Fellowship - Cardiovascular Medicine, University of Maryland Medical System, Baltimore, Maryland
  • Residency - Internal Medicine, Johns Hopkins Bayview Medical Center, Baltimore, Maryland
  • Medical Degree - New York College of Osteopathic Medicine, Westbury, New York


Insurances Accepted

See a list of insurances accepted at Mercy. Restrictions may apply. Patients should confirm coverage with their carrier prior to appointment date.