Jolion Mcgreevy
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Jolion Mcgreevy, MD

Emergency Medicine

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About Me

Dr. Jolion McGreevy is an Associate Professor of Emergency Medicine at the Icahn School of Medicine.   Dr. McGreevy serves in numerous capacities at Mount Sinai Health System.  Dr. McGreevy is the Vice Chair and Vice President for Clinical Operations in Emergency Medicine for the Mount Sinai Health System. providing strategic clinical operations oversight for the Emergency Medicine service line.  He is also the Medical Director of The Mount Sinai Hospital Emergency Department (ED).

Dr. McGreevy brings a unique blend of strategic, operational, organizational, and ethical thinking to this leadership role. Since joining Mount Sinai in 2018, Dr. McGreevy has helped build an effective clinical leadership, process improvement, and data analysis team, which has guided The Mount Sinai Hospital ED.

Dr. McGreevy co-chairs the Emergency Medicine Operations Committee for Emergency Services. This committee brings together administrative, nursing, and medical directors from every Mount Sinai ED and urgent care center to develop shared practices and innovate. In the past year, this committee has worked with Health System partners to implement a common approach to pandemic surge, a streamlined and trackable intra-system transfer process, standardized COVID-19 testing and novel treatment algorithms, and a coordinated follow-up system for patients diagnosed with COVID-19 in our EDs or urgent care centers.

Dr. McGreevy completed his residency at Boston Medical Center/Boston University School of Medicine and received his M.D. from Jefferson Medical College, M.B.E. (Master of Bioethics) from the University of Pennsylvania, and M.P.H. from Johns Hopkins University. He teaches clinical ethics at the Harvard Center for Bioethics and serves on the Ethics Committees of ACEP and SAEM. 


ASSOCIATE PROFESSOR | Emergency Medicine
Hospital Affiliations
  • Mount Sinai Beth Israel
  • Mount Sinai Morningside
  • Mount Sinai Brooklyn
  • Mount Sinai Queens
  • The Mount Sinai Hospital
  • Mount Sinai West