Bio


Dr. Larsen is a clinical assistant professor in the Department of Neurology, Division of Autonomic Disorders. He is a board-certified neurologist and a fellowship-trained specialist in neurophysiology and autonomics. He completed medical school at the University of Utah and neurology residency and fellowship at Stanford.

In his clinical practice, Dr. Larsen focuses on disorders of the autonomic nervous system (ANS). His research interest is in the long-term autonomic complications of COVID-19. He is the principal investigator of a study looking at post-COVID postural tachycardia syndrome.

Dr. Larsen’s research interests also include Global Health Neurology. Dr. Larsen helped establish the first stroke unit in Rwanda and is part of the American Academy of Neurology’s Refugees & Asylum Seekers Working Group.

He has co-authored articles for publication in Clinical Autonomic Research, Autonomic Neuroscience, Nature Climate Change, and elsewhere. He is a recipient of the American Academy of Neurology Medical Student Prize for Excellence as well as a member of the Alpha Omega Alpha Honor Medical Society.

Clinical Focus


  • Neurology
  • Autonomic Disorders

Academic Appointments


Honors & Awards


  • Student Prize for Excellence, American Academy of Neurology Medical
  • Member, Alpha Omega Alpha Medical Honors Society

Professional Education


  • Fellowship: Autonomics Disorders Fellowship Program (2021) CA
  • Board Certification: American Board of Psychiatry and Neurology, Neurology (2020)
  • Residency: Stanford University Neurology Residency (2020) CA
  • Internship: Stanford University Internal Medicine Residency (2017) CA
  • Medical Education: University of Utah School of Medicine Registrar (2016) UT

All Publications


  • Inappropriate sinus tachycardia in long-COVID and other updates on recent autonomic research. Clinical autonomic research : official journal of the Clinical Autonomic Research Society Miglis, M. G., Larsen, N., Muppidi, S. 2022

    View details for DOI 10.1007/s10286-022-00854-5

    View details for PubMedID 35129713

  • The 2021 Nobel Prize in Medicineandits relevance toautonomicmedicine-and otherupdates on recent autonomic research. Clinical autonomic research : official journal of the Clinical Autonomic Research Society Miglis, M. G., Larsen, N., Muppidi, S. 2021

    View details for DOI 10.1007/s10286-021-00838-x

    View details for PubMedID 34751840

  • Holiday heart syndrome: do not drink during this holiday! and other updates on recent autonomic research. Clinical autonomic research : official journal of the Clinical Autonomic Research Society Miglis, M. G., Larsen, N., Muppidi, S. 2021

    View details for DOI 10.1007/s10286-021-00818-1

    View details for PubMedID 34244877

  • Preparing for the long-haul: Autonomic complications of COVID-19. Autonomic neuroscience : basic & clinical Larsen, N. W., Stiles, L. E., Miglis, M. G. 2021; 235: 102841

    Abstract

    As global numbers of COVID-19 grow, chronic neurological symptoms, including those of autonomic dysfunction, are being reported with increasing frequency. Mounting evidence suggests that many patients experience chronic and sometimes debilitating symptoms long after their acute infectious period, leading to the new diagnostic category of post-acute COVID syndrome. Many symptoms of post-acute COVID syndrome appear autonomic in nature, suggesting that autonomic impairment may play a central role in the underlying pathophysiology. In this review, we discuss the autonomic symptoms and manifestations of post-acute COVID syndrome, potential mechanisms involved, and future directions for a better understanding of this novel condition.

    View details for DOI 10.1016/j.autneu.2021.102841

    View details for PubMedID 34265539

  • Do not sweat it: we test while you rest and other updates on recent autonomic research. Clinical autonomic research : official journal of the Clinical Autonomic Research Society Miglis, M. G., Larsen, N., Muppidi, S. 2021

    View details for DOI 10.1007/s10286-021-00811-8

    View details for PubMedID 33978866

  • RT-QUiC in multiple system atrophy: the biomarker of the future? and otherupdates on recent autonomic research. Clinical autonomic research : official journal of the Clinical Autonomic Research Society Miglis, M. G., Larsen, N., Muppidi, S. 2021

    View details for DOI 10.1007/s10286-021-00767-9

    View details for PubMedID 33515140

  • The shock of it: sympathetic activation promotes hair greying, and other updates on recent autonomic research. Clinical autonomic research : official journal of the Clinical Autonomic Research Society Miglis, M. G., Larsen, N., Muppidi, S. 2020

    View details for DOI 10.1007/s10286-020-00746-6

    View details for PubMedID 33210247

  • Coral thermal tolerance shaped by local adaptation of photosymbionts NATURE CLIMATE CHANGE Howells, E. J., Beltran, V. H., Larsen, N. W., Bay, L. K., Willis, B. L., van Oppen, M. H. 2012; 2 (2): 116-120