Dr Karen Mrejen, MD

Critical Care Medicine, Internal Medicine, Pulmonary Disease
Bay Shore, NY 11706 (2 other locations)

Patients’ Perspective

  • Trusted diagnosis
  • Good bedside manner
  • Takes time to answer questions

About Dr Karen Mrejen MD

Dr Karen Mrejen, MD is a health care provider primarily located in Bay Shore, NY, with other offices in Brightwaters, NY and Babylon, NY. Her specialties include Critical Care Medicine, Internal Medicine, Pulmonary Disease.


Dr Karen Mrejen has 3 locations

Northwell Health 39 Brentwood Road Suite 102 Bay Shore, NY 11706
Northwell Health 402 Potter Boulevard Brightwaters, NY 11718
Northwell Health 258 West Main Street Babylon, NY 11702


Dr Karen Mrejen has the following 3 specialties

Specialty Expertise

Dr Karen Mrejen has the following 2 areas of expertise

  • Postoperative Care
  • Pulmonary Function Tests


Albany Medical College

Medical School

Montefiore Medical Center


Mount Sinai School of Medicine


Dr Karen Mrejen Accepts the Following Insurance

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More about Dr Karen Mrejen

Dr Mrejen graduated from the Albany Medical College. She works in Bay Shore, NY and 2 other locations and specializes in Critical Care Medicine, Internal Medicine and Pulmonary Disease.

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