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Brett Morrison

Brett Morrison, MD

Neuromuscular Medicine

Accepting New Patients

Highlights

Age Groups Seen

  • Young Adult 18-25
  • Adult 26-64
  • Older Adult 65+

Languages

  • English

Gender

Male

Johns Hopkins Affiliations:

  • Johns Hopkins School of Medicine Faculty

About Brett Morrison

Primary Academic Title

Associate Professor of Neurology

Johns Hopkins Physician

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Background

Dr. Brett Morrison specializes in neuromuscular disorders in adults including peripheral neuropathies, amyotrophic lateral sclerosis, myasthenia gravis and muscle diseases.

Dr. Morrison is currently the site principal investigator for clinical trials investigating new treatments for chronic inflammatory demyelinating polyneuropathy (CIDP) and painful diabetic peripheral neuropathy. 

Dr. Morrison's research interests include investigations into the mechanisms of nerve regeneration and common peripheral neuropathies. Current research focuses on better understanding the role of the immune system in peripheral nerves and targeting these pathways for the development of new treatments.

Dr. Brett Morrison received his M.D. and Ph.D. from Mount Sinai Medical School in New York City. He completed his medical internship at the University of Maryland and residency in neurology at The Johns Hopkins Hospital. He then completed a fellowship in Clinical Neurophysiology at The Johns Hopkins Hospital.

Find a Clinical Trial

View all trials by this principal investigator.

Contact for Research Inquiries

855 N. Wolfe Street
Rangos 248
Baltimore, MD 21205

Research Summary

Dr. Morrison's research interests include investigations into the cellular mechanisms of nerve regeneration and common peripheral neuropathies, with a particular focus on the role of cellular metabolism. Current research focuses on better understanding the role of the immune system in peripheral nerves and targeting these pathways for the development of new treatments.

Selected Publications

  • Lee, Y.*, Morrison, B.M.*, Li, Y., Lengacher, S., Farah, M.H., Hoffman, P.N., Liu, Y., Tsingalia, A., Jin, L., Zhang, P-W., Pellerin, L., Magistretti, P.J., Rothstein, J.D.  Oligodendroglia metabolically support axons and contribute to neurodegeneration. Nature 2012; 487 (7408): 443-448. *Co-First author of publication
  • Jha, M.K., Lee, Y., Russell, K.A., Yang, F., Dastgheyb, R.M., Deme, P. Ament, X.H., Chen, W., Liu, Y., Guan, Y., Polydefkis, M.J., Hoke, A., Haughey, N.J., Rothstein, J.D., Morrison, B. M.*  Monocarboxylate transporter 1 in Schwann cells contributes to the maintenance of sensory nerve myelination during aging. Glia 2020; 68 (1): 161-77.
  • Jha, M.K., Ament, X.H., Yang, F., Liu, Y., Polydefkis, M.J., Pellerin, L., Morrison, B.M. Reducing monocarboxylate transporter 1 MCT1 worsens experimental diabetic peripheral neuropathy. Exp. Neurol. 2020; 330 113415.
  • Philips, T., Mironova, T.A., Jouroukhin, Y., Chew, J., Vidensky, S., Farah, M., Pletnikov, M.V., Bergles, D.E., Morrison, B.M.*, Rothstein J.D.  MCT1 deletion in oligodendrocyte lineage cells causes late-onset hypomyelination and axonal degeneration. Cell Reports 2021; 34: 108610. *Co-corresponding author
  • Jha, M.K., Passero, J.V., Rawat, A., Ament, X.H., Yang, F., Vidensky, S., Collins, S.L., Horton, M.R., Hoke, A., Rutter, G.A., Latremoliere, A., Rothstein, J.D., Morrison, B.M. Macrophage monocarboxylate transporter 1 promotes peripheral nerve regeneration after nerve injury. J. Clin. Invest. 2021: 131 (21):e141964

Honors

  • Young Investigator Award, Passano Foundation, 1/1/06
  • Jay Slotkin Research Award, Johns Hopkins Hospital, 1/1/05
  • Inductee into Alpha Omega Alpha Honor Society, 1/1/00
  • Doctoral Dissertation Award, Mount Sinai School of Medicine, 1/1/99
  • Morris Bender Award in Clinical Neurology, 1/1/99
  • Research Grant, Amyotrophic Lateral Sclerosis Association, 1/1/96
  • Magna Cum Laude in Neuroscience, Amherst College, 1/1/92
  • James Olds Memorial Neuroscience Award, Amherst College, 1/1/92
  • Inductee into Sigma Xi Honor Society, 1/1/92

Locations

  1. Levi Watkins, Jr., M.D., Outpatient Center

Expertise

Education

  • Fellowship: Johns Hopkins University School of Medicine, Clinical Neurophysiology, 2006
  • Residency: Johns Hopkins University School of Medicine, Neurology, 2005
  • Medical Education: Mount Sinai School of Medicine, MD, 2001

Board Certifications

  • Neurology: American Board of Psychiatry and Neurology, 2006

Insurance

Please contact the location directly to confirm your health plan is accepted.
Search plans
  • Aetna
  • CareFirst
  • Cigna
  • First Health
  • Geisinger Health Plan
  • HealthSmart/Accel
  • Johns Hopkins Health Plans
  • MultiPlan
  • Pennsylvania's Preferred Health Networks (PPHN)
  • Point Comfort Underwriters
  • Private Healthcare Systems (PHCS)
  • Veteran Affairs Community Care Network (Optum-VACCN)

Ratings & Reviews

5 out of 5

55 ratings, 26 reviews

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

Overall Rating by Patient
Provider Listened Carefully
Provider Explained Things Clearly
Provider Knew Medical History
Provider Showed Respect
Provider Spent Enough Time
Search reviews
    5 out of 5 stars
    Reviewed on 2/23/2026

    The Dr listened to my concer s and thoroughly explained options available.

    5 out of 5 stars
    Reviewed on 2/16/2026

    Great service

    5 out of 5 stars
    Reviewed on 2/9/2026

    Exceptional service

    5 out of 5 stars
    Reviewed on 2/2/2026

    I am grateful for the services of Dr. Brett Morrison and team.

    5 out of 5 stars
    Reviewed on 12/23/2025

    Great doctor!

    5 out of 5 stars
    Reviewed on 11/25/2025

    He is excellent doctor

    5 out of 5 stars
    Reviewed on 11/12/2025

    Very well informed , shared knowledge, answered questions all good

    5 out of 5 stars
    Reviewed on 11/11/2025

    He's at the top of field

    5 out of 5 stars
    Reviewed on 11/10/2025

    Morrison is very focused and listened well.Follow up phone conversation good too.

    5 out of 5 stars
    Reviewed on 10/30/2025

    Dr. Morrison is very patient with his patients and very thorough.

    5 out of 5 stars
    Reviewed on 10/20/2025

    Xlnt attention/care given

    5 out of 5 stars
    Reviewed on 10/20/2025

    He made sure I understood everything. It was a very good visit

    5 out of 5 stars
    Reviewed on 10/13/2025

    I very much respected him and found him to be very interested and knowledgeable about me. I would see him again

    5 out of 5 stars
    Reviewed on 10/6/2025

    Very thorough exam. We forgot to ask a couple of questions.

    5 out of 5 stars
    Reviewed on 10/6/2025

    Excellent care

    5 out of 5 stars
    Reviewed on 9/15/2025

    Appreciated being moved up 2 months on doctor's schedule with time to reply

    5 out of 5 stars
    Reviewed on 8/18/2025

    Best doctor

    5 out of 5 stars
    Reviewed on 8/5/2025

    Terrific

    5 out of 5 stars
    Reviewed on 7/22/2025

    Very concerning and very professional

    5 out of 5 stars
    Reviewed on 7/21/2025

    The provider is detail oriented and listens to my concerns which is important to me.

    5 out of 5 stars
    Reviewed on 7/21/2025

    All good so far, I've only had one visit so far but I feel like I actually had gone to a doctor and got a thorough exam.

    5 out of 5 stars
    Reviewed on 6/23/2025

    He was very good as usual. He understands how important the research for neuropathy is and is very impathetic for us.

    5 out of 5 stars
    Reviewed on 6/2/2025

    Amazing physician who was knowledgeable, courteous and caring. The empathy was obvious!

    5 out of 5 stars
    Reviewed on 5/27/2025

    Best doctor I have seen in many years. A genuinely caring doctor.

    5 out of 5 stars
    Reviewed on 5/13/2025

    The provider was very knowledgeable of the subject.

    5 out of 5 stars
    Reviewed on 5/13/2025

    Feel fortunate I had a chance to talk with him, and I hope he can help me in the future