Lik Hang Tommy Chan, MBBS, FRCPC, ABPN, UCNS


Assistant Professor, Departments of Clinical Neurological Sciences, Western University
Headache Specialist
Office: University Hospital, C7-126
University Hospital: 519-685-8500 X 33538


Bio Sketch

Dr. Lik Hang Tommy Chan is a dual board-certified neurologist (Royal College of Physicians and Surgeons of Canada and the American Board of Neurology and Psychiatry). He is an United Council for Neurologic Subspecialties (UCNS) accredited headache specialist. He obtained his Bachelor of Science degree from the University of Toronto, Canada in 2008 prior to completing his medical education at the University of Queensland, Australia in 2013. He completed a 5-year adult neurology residency training program at the University of Western Ontario, Canada in 2019. He was appointed as chief neurology resident in 2018. He completed a Headache Fellowship training at Stanford University in 2020. Dr. Chan has published more than 25 peer-reviewed publications as of 2022. He also co-authored a book chapter in “Post-traumatic headache disorders” and "Functional lllness: Headaches". His research interests include primary and secondary headache disorders.

Dr. Chan is a member of the American Headache Society, Canadian Headache Society, and the International Headache Society.

Dr. Chan is a reviewer for the following medical journals: Cephalalgia, Cephalalgia Reports, Headache, The Journal of Headache and Pain, BMC Neurology, Clinical Neurology & Neurosurgery, The Canadian Journal of Neurological Sciences, and The Canadian Journal of Ophthalmology. 


Medical Interests


Honours and Awards

  • 2020, National Headache Foundation Lectureship Award, New Orleans USA
  • 2020, Frontiers in Headache Research Award, American Headache Society (2020)
  • 2020, National Fellow Scholarship, American Academy of Neurology Meeting
  • 2020, Headache Cooperative of The Pacific, Ojal Valley USA
  • 2019, iHEAD, Dublin, Ireland
  • 2019, Grand Rounds Presentation of the Year, Clinical Neurological Sciences, Western University
  • 2017 - 2020, International Headache Academy, Los Angeles USA

PubMed Publications Listing


Chan TLH. OnabotulinumtoxinA Improves Quality of Life in Chronic Migraine: The PREDICT Study. Can J Neurol Sci. 2022 Jul;49(4):477-478. doi: 10.1017/cjn.2021.159. PMID: 35768186.

Chan TLH, Hindiyeh N. Hemicrania continua: Indomethacin induced myoclonus. Clin Neurol Neurosurg. 2021 Jul;206:106703. doi: 10.1016/j.clineuro.2021.106703. Epub 2021 May 20. PMID: 34049752.

Chan TLH. Hemicrania continua secondary to pituitary macroadenoma responsive to nerve blocks: A case report. Headache. 2021 May;61(5):798-800. doi: 10.1111/head.14121. PMID: 34105160.

Chan TLH. New Daily Persistent Headache responsive to Peripheral Nerve Blocks. Can J Neurol Sci. 2021 Sep 16:1-7. doi: 10.1017/cjn.2021.220. Epub ahead of print. PMID: 34526165.

Chan TLH, Vuong K, Chugh T, Carroll I. Cerebellar tonsillar descent: A diagnostic dilemma between Chiari malformation type 1 and spinal cerebrospinal fluid leak. Heliyon. 2021 Apr 19;7(4):e06795. doi: 10.1016/j.heliyon.2021.e06795. PMID: 33981879; PMCID: PMC8082209.

Zhang N, Chan TLH, Cowan R. Reimagining Headache Fellowships. Headache. 2020 Nov;60(10):2613-2617. doi: 10.1111/head.13965. Epub 2020 Sep 26. PMID: 32979226.

Chan TLH, Kim DD, Sharma M, Jog M. Hypoglossal Nerve Palsy Following Chiropractic Neck Manipulation. Can J Neurol Sci. 2019;46(5):633-634. doi:10.1017/cjn.2019.237>

Chan TLH, Romsa J, Steven DA, Burneo JG. Refractory Epilepsy: The Role of Positron Emission Tomography. Can J Neurol Sci. 2018;45(1):30-34. doi:10.1017/cjn.2017.244

Chan TLH, Kim DD, Sharma M, Lee DH, Fraser JA. Valsalva-triggered pseudotumor cerebri syndrome: Case series and pathogenetic implicationsNeurology. 2018;91(8):e746-e750. doi:10.1212/WNL.0000000000006048

Chan TLH, Kim DD, Lanzman B, Peretz A. Horner's syndrome and thunderclap headache [published online ahead of print, 2020 Jul 14]. Can J Neurol Sci. 2020;1-8. doi:10.1017/cjn.2020.147

Chan TLH, Sharma M, Burneo JG. Focal Epilepsy Secondary to Juxtacortical Lesions in Cerebral Autosomal Dominant Arteriopathy with Subacute Infarcts and LeukoencephalopathyCan J Neurol Sci. 2018;45(4):462-463. doi:10.1017/cjn.2018.29

Budhram A, Liu Y, Krawczyk M, Chan TLH, Burneo JG, Hosseini-Moghaddam SM, Shoesmith C. High-dose corticosteroids for acute cytomegalovirus-associated transverse myelitis in the immunocompetent patient: a case report and systematic reviewJ Neurovirol. 2019;25(3):405-409. doi:10.1007/s13365-018-0717-2

Chan TLH, Mayich M, Budhram A, Sallam Y, Becker WJ. Teaching Images in Headache: Concurrent Hypercalcemia-Induced Reversible Cerebral Vasoconstriction Syndrome and Posterior Reversible Encephalopathy SyndromeHeadache. 2019;59(6):933-935. doi:10.1111/head.13528

Chan TLH, Budhram A. Facial Diplegia in Neuroinvasive West Nile Virus InfectionCan J Neurol Sci. 2019;46(4):453-454. doi:10.1017/cjn.2019.46

Chan TLH, Zhang N. Chronic Cannabis Use and Treatment Failure of Onabotulinum Toxin A for Chronic MigraineCan J Neurol Sci. 2019;46(6):785-786. doi:10.1017/cjn.2019.291

Chan TLH, Cartagena AM, Bombassaro AM, Hosseini-Moghaddam SM. Ramsay Hunt Syndrome Associated with Central Nervous System Involvement in an AdultCan J Infect Dis Med Microbiol. 2016;2016:9859816. doi:10.1155/2016/9859816

Chan TLH, Becker WJ, Jog M. Indomethacin-Responsive Idiopathic Red Ear Syndrome: Case Report and PathophysiologyHeadache. 2018;58(2):306-308. doi:10.1111/head.13237

Chan TLH, Hale TD, Steenerson KK. Vestibular Lab Testing: Interpreting the Results in the Headache Patient with DizzinessCurr Neurol Neurosci Rep. 2020;20(6):16. Published 2020 May 19. doi:10.1007/s11910-020-01036-4

Chan TLH, Kim DD, Becker WJ. Cluster Headache with Temporomandibular Joint Pain [published online ahead of print, 2020 Mar 24]. Can J Neurol Sci. 2020;1-2. doi:10.1017/cjn.2020.58

Chan TLH, Kim DD, Becker WJ. New Onset Focal Stabbing Headache Associated With Peripheral Vertigo: A Case ReportHeadache. 2018;58(1):151-153. doi:10.1111/head.13208

Chan TLH, Becker WJ, Hu WY, Amoozegar F. Spontaneous Intracranial Hypotension Induced Headaches and Onabotulinum Toxin A: A Case ReportCan J Neurol Sci. 2018;45(1):111-113. doi:10.1017/cjn.2017.257

Chan TLH, Cowan R, Hindiyeh N, Hashmi S, Lanzman B, Carroll I. Spinal cerebrospinal fluid leak in the context of pars interarticularis fractureBMC Neurol. 2020;20(1):162. Published 2020 Apr 29. doi:10.1186/s12883-020-01740-1

Chan TLH, Cowan RP, Woldeamanuel YW. Calcitonin Gene-Related Peptide Receptor Antagonists (Gepants) for the Acute Treatment of Nausea in Episodic Migraine: A Systematic Review and Meta-Analysis [published online ahead of print, 2020 Jun 9]. Headache. 2020;10.1111/head.13858. doi:10.1111/head.13858

Chan TLH, Kim DD, Hashmi S, Carrol I. Pearls and Oy-sters: Dural defect repair as treatment for refractory headache from CSF leak [published online ahead of print, 2020 Aug 4]. Neurology. 2020;10.1212/WNL.0000000000010476. doi:10.1212/WNL.0000000000010476

Chan TLH, Woldeamanuel YW. Exploring naturally occurring clinical subgroups of post-traumatic headacheJ Headache Pain. 2020;21(1):12. Published 2020 Feb 7. doi:10.1186/s10194-020-1080-2