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Marc Probst

  • ASSISTANT PROFESSOR Emergency Medicine
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  • American Board of Emergency Medicine


  • MD, McGill University

  • Internship, General Surgery
    Beth Israel Medical Center

  • Residency, Emergency Medicine
    University of Southern California Med Center


    Dr. Probst is currently an Assistant Professor of Emergency Medicine at the Icahn School of Medicine at Mount Sinai. He obtained his MD degree from McGill University in Montreal, Canada in 2007 before moving to Los Angeles to pursue residency training at LA-County USC Medical Center.  He then went on to complete a research fellowship at the UCLA Medical Center obtaining an MS degree in Health Policy and Management in 2014 from the UCLA School of Public Health. Dr. Probst is currently funded by the National Heart Lung and Blood Institute under the K12 career development award.


  • 2015 -
    Top New Peer Reviewer for Annals of Emergency Medicine

  • 2012 -
    Resident Research Award
    LA County + USC Department of Emergency Medicine


New topicShared Decision Making; Syncope; Blunt Head Trauma

Dr. Probst’s research focuses on means to increase patient engagement in the Emergency Department through the use of shared decision-making. He also studies resource utilization associated with cardiovascular complaints such as syncope and palpitations and has received F32 grant funding from the National Heart Lung and Blood Institute to study the management of palpitations in the Emergency Department. Dr. Probst has also published in the area of clinical decision-making for blunt head trauma.


Probst MA, Kanzaria HK, Hoffman JR, Mower WR, Moheimani RS, Sun BC, Quigley DD. Emergency Physicans' Perceptions and Decision-making Processes Regarding Patients Presenting with Palpitations.. J Emerge Med 2015 February;.

Probst MA, Sun BC. How can we improve management of syncope in the Emergency Department?. Cardiol J 2014 October;.

Kanzaria HK, Probst MA, Ponce NA, Hsia RY. The association between advanced diagnostic imaging and ED length of stay. Am J Emerg Med 2014 October; 32`(10): 1253-8.

Probst MA, Kanzaria HK, Schriger DL. A Conceptual Model of Emergency Physician Decision-Making for Head Computed Tomography in Mild Head Injury.. American Journal of Emergency medicine 2014 June; 32(6): 645-50.

Probst MA, Mower WR, Kanzaria HK, Hoffman JR, Buch ER, Sun BC. Analysis of Emergency Department Visits for Palpitations (From the National Hospital Ambulatory Medical Care Survery). Am J Cardiol 2014 May; 113(10): 1685-90.

Arora S, Probst MA, Andrews L, Camilion M, Brock A, Hayward G, Menchine M. A randomized, controlled trial of oral versus intravenous fluids for lowering blood glucose in Emergency Department patients with hyperglycemia. Canadian Journal of Emergency Medicine 2014 May; 16(3): 214-9.

Arora S, Probst MA, Agy C, Menchine M. Point-of-care beta-hydroxbutyrate testing for assessing diabetic ketoacidosis severity prior to treatment in the emergency Department. Diabetes Res Clin Practi 2011 December; 94(3): e86-8.

Menchine M, Probst MA, Agy C, Bach D, Arora S. Diagnostic Accuracy of Venous Blood Gas Electrolytes for Identifying Diabetic Ketoacidosis in the Emergency Department. Academic Emergency Medicine 2011 October; 18(10): 1105-8.

Baraff LI, Byyny RL, Probst MA, Salamon N, Linetsky M, Mower WR. Prevalence of herniation and intracranial shift on cranial tomography in patients with subarachnoid hemmorhage and a normal neurologi examination. Academic Emergency Medicine 2010 April; 17(4): 423-8.

Probst MA, Baraff LI, Hoffman JR, Wolfson AB, Ourian AJ, Mower WR. Can Patients with Brain Herniation on Cranial Computed Tomography Have a Normal Neurologic Exam?. Academic Emergency medicine 2009 February; 16(2): 145-50.

Baugh CW, Liang LJ, Probst MA, Sun BC. National cost savings from observation unit management of syncope. Academic emergency medicine : official journal of the Society for Academic Emergency Medicine 2015 Aug; 22(8).

Probst MA, Kanzaria HK, Gbedemah M, Richardson LD, Sun BC. National trends in resource utilization associated with ED visits for syncope. The American journal of emergency medicine 2015 Aug; 33(8).

Industry Relationships

Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device and biotechnology companies to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their relationships with such companies.

Dr. Probst did not report having any of the following types of financial relationships with industry during 2015 and/or 2016: consulting, scientific advisory board, industry-sponsored lectures, service on Board of Directors, participation on industry-sponsored committees, equity ownership valued at greater than 5% of a publicly traded company or any value in a privately held company. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.

Mount Sinai's faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.

Insurance Information

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