Amit Bar-Or, MD, FRCPC
Neurology
Accepting new patients
Sees patients age 18 and up
Penn Neuroscience Center - Neurology
Penn Medicine Provider

About me

  • Director, Center for Neuroinflammation and Neurotherapeutics
  • Chief, Multiple Sclerosis Division
  • Melissa and Paul Anderson President's Distinguished Professor

Education and training

  • Medical School: McGill University
  • Residency: Massachusetts General Hospital
  • Fellowship: Mass General Brigham Healthcare Center - Chestnut Hill

What my patients think about me

Average Rating

86 reviews

Comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Penn Medicine.

January 2026
he has a lot of patience already.
January 2026
love my doctor he's very thorough
January 2026
spent the needed time
October 2025
great neurologist

Insurance accepted

My Locations

Penn Medicine hospital privileges

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Pennsylvania Hospital: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
Dr. Bar-Or is a Penn Medicine physician.

Qualifications and experience

Treatments and Conditions

My research

Ghadiri M, Rezk A, Li R, Evans A, Luessi F, Zipp F, Giacomini PS, Antel J Dimethyl fumarate-induced lymphopenia in MS due to differential T-cell subset apoptosis , Neurol Neuroimmunol Neuroinflamm, 4(3): 2017


Aubert-Broche B, Weier K, Longoni G, Fonov VS, Bar-Or A, Marrie RA, Yeh EA, Narayanan S, Arnold DL, Verhey LH, Banwell B, Collins DL; Monophasic demyelination reduces brain growth in children , Neurology: 2017


Hauser SL, Bar-Or A, Comi G, Giovannoni G, Hartung HP, Hemmer B, Lublin F, Montalban X, Rammohan KW, Selmaj K, Traboulsee A, Wolinsky JS, Arnold DL, Klingelschmitt G, Masterman D, Fontoura P, Belachew S, Chin P, Mairon N, Garren H, Kappos L OPERA I and OPERA II Clinical Investigators. Ocrelizumab versus Interferon Beta-1a in Relapsing Multiple Sclerosis , N Engl J Med., 376(3): 2017,221-234


Montalban X, Hauser SL, Kappos L, Arnold DL, Bar-Or A, Comi G, de Seze J, Giovannoni G, Hartung HP, Hemmer B, Lublin F, Rammohan KW, Selmaj K, Traboulsee A, Sauter A, Masterman D, Fontoura P, Belachew S, Garren H, Mairon N, Chin P, Wolinsky J ORATORIO Clinical Investigators. Ocrelizumab versus Placebo in Primary Progressive Multiple Sclerosis , N Engl J., 376(3): 2017,221-234


Li R, Rezk A, Ghadiri M, Luessi F, Zipp F, Li H, Giacomini PS, Antel J, Bar-Or A* Dimethyl Fumarate Treatment Mediates an Anti-Inflammatory Shift in B Cell Subsets of Patients with Multiple Sclerosis , J Immunol., 198(2): 2017,691--698


Rozenberg A, Rezk A, Boivin MN, Darlington PJ, Nyirenda M, Li R, Jalili F, Winer R, Artsy EA, Uccelli A, Reese JS, Planchon SM, Cohen JA, Bar-Or A Human Mesenchymal Stem Cells Impact Th17 and Th1 Responses Through a Prostaglandin E2 and Myeloid-Dependent Mechanism. , Stem Cells Transl Med., pii: sctm.2015-0243(11): 2016


Li R, Rezk A, Miyazaki Y, Hilgenberg E, Touil H, Shen P, Moore C, Michel L, Althekair F, Rajasekharan S, Gommerman J, Prat A, Fillatreau S and Bar-Or A on behalf of the 'Canadian B cells in MS Team' Proinflammatory GM-CSF producing B cells: implication in multiple sclerosis and B cell depletion therapy , Sci Transl Med, 7(310): 2015,166


Makhani N, Banwell B, Tellier R, Yea C, McGovern S, O'Mahony J, Ahorro JM, Arnold D, Sadovnick AD, Marrie RA, Bar-Or A; Canadian Pediatric Demyelinating Disease Network Viral exposures and MS outcome in a prospective cohort of children with acquired demyelination , Mult Scler, 22(3): 2016,385-8


Bar-Or A, Wiendl H, Miller B, Benamor M, Truffinet P, Church M, Menguy-Vacheron F Randomized study of teriflunomide effects on immune responses to neo-antigen and recall antigens , Neurol Neuroimmunol Neuroinflamm., 2(2): 2015,e70


Moore CS, Cui QL, Warsi NM, Durafourt BA, Zorko N, Owen DR, Antel JP, and Bar-Or A Direct and Indirect Effects of Immune and Central Nervous System–Resident Cells on Human Oligodendrocyte Progenitor Cell Differentiation , J Immunol, 194(2): 2015,761-72


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