Ryan Matthew Martin, M.D. for UC Davis Health

Ryan Matthew Martin, M.D.

Associate Professor, Departments of Neurological Surgery and Neurology

To see if Ryan Matthew Martin is accepting new patients, or for assistance finding a UC Davis doctor, please call 800-2-UCDAVIS (800-282-3284).



Neurocritical Care

Brain Injury Medicine

Locations and Contact

Ernest E. Tschannen Eye Institute

PM&R Traumatic Brain Injury (TBI) Clinic
4860 Y Street
Sacramento, CA 95817

Get Directions

Phone: 916-734-7041

Additional Numbers

Physician Referrals

800-4-UCDAVIS (800-482-3284)

Philosophy of Care

In the neurointensive care unit, Dr. Martin provides detailed, individualized care to patients. His patients, and their families, are often going through the most difficult challenge of their lives and he is there to help them through the storm. His team uses multi-modal monitoring to allow them to individualize their treatment plans for each patient. Their goal is to prevent further injury and to optimize recovery.

In his multidisciplinary TBI clinic, Dr. Martin works with therapists, social workers, and neuropsychologists to guide patients through their injury and towards community re-integration. His goal is to get patients back to as close as normal as possible prior to their TBI.

Clinical Interests

As a neurointensivist, Dr. Martin sees patients with neurological disease that requires ICU level care.  This includes such diseases as traumatic brain injury (TBI), spinal cord injury, subarachnoid hemorrhage, intracerebral hemorrhage, stroke, neuromuscular weakness, and status epilepticus.

He also leads a multi-disciplinary TBI clinic, specializing in the needs of of survivors from recent and remote injury. His clinic includes experts from neuropsychology, occupational therapy, speech therapy, physical therapy, social work and physical medicine and rehabilitation. 

Research/Academic Interests

Dr. Martin's main research focus is in TBI outcomes. He is engaged in a number of observational clinical trials investigating the risk factors for post-traumatic epilepsy, particularly neuro-inflammation. Using positron emission tomography (PET) imaging, Dr. Martin is characterizing how neuro-inflammation changes overtime and how this impacts recovery..


Neurological Surgery

Undergraduate School

B.S., Neurobiology, Physiology, and Behavior, UC Davis, Sacramento CA 2004

Medical School

M.D., David Geffen School of Medicine at UCLA, Los Angeles CA 2010


Internal Medicine, Cedar-Sinai Medical Center, Los Angeles CA 2010-2011


Neurology, David Geffen School of Medicine at UCLA, Los Angeles CA 2011-2014


Neurocritical Care, David Geffen School of Medicine at UCLA, Los Angeles CA 2014-2016

Teaching in Excellence Award, UC Davis Department of Neurological Surgery, 2019

CICARE Award, Patient Care, UCLA, 2016

Resident Scholarship of the American Academy of Neurology Annual Meeting, 2014


Scurfield AK, Wilson MD, Gurkoff G, Martin R, Shahlaie K. Identification of Demographic and Clinical Prognostic Factors in Traumatic Intraventricular Hemorrhage. Neurocrit Care. 2023 Feb;38(1):149-157. doi:10.1007/s12028-022-01587-z. Epub 2022 Sep 1. PMID:36050537.

Lui A, Vanleuven J, Perekopskiy D, Liu D, Xu D, Alzayat O, Elgokhy T, Do T, Gann M, Martin R, Liu DZ. FDA-Approved Kinase Inhibitors in Preclinical and Clinical Trials for Neurological Disorders. Pharmaceuticals (Basel). 2022 Dec 13;15(12):1546. doi:10.3390/ph15121546. PMID:36558997.

Li W, Wittmann RA, Farias DR, Bigler ED, Martin RM. Cognitive profile of mild traumatic brain injury patients requiring acute hospitalization - A UC davis cognitive screener (UCD-Cog) study. Brain Inj. 2022 Jan 2;36(1):59-71. doi:10.1080/02699052.2022.2034968. Epub 2022 Feb 10. PMID:35143336.

Zhou W, Kholiqov O, Zhu J, Zhao M, Zimmermann LL, Martin RM, Lyeth BG, Srinivasan VJ. Functional interferometric diffusing wave spectroscopy of the human brain. Sci Adv. 2021 May 12;7(20):eabe0150. doi:10.1126/sciadv.abe0150. PMID:33980479.

Castillo R, Chan A, Atallah S, Derry K, Baje M, Zimmermann LL, Martin R, Groysman L, Stern-Nezer S, Minokadeh A, Nova A, Huang W, Cang W, Schomer K. Correction to: Treatment of adults with intracranial hemorrhage on apixaban or rivaroxaban with prothrombin complex concentrate products. J Thromb Thrombolysis. 2021 Jan;51(1):246. doi:10.1007/s11239-020-02197-2. Erratum for: J Thromb Thrombolysis. 2021 Jan;51(1):151-158. Erratum in: J Thromb Thrombolysis. 2020 Oct 31;: PMID:32578054.

Picinich C, Kennedy J, Thind H, Foreman C, Martin RM, Zimmermann LL. Continuous Electroencephalographic Training for Neuroscience Intensive Care Unit Nurses: A Feasibility Study. J Neurosci Nurs. 2020 Oct;52(5):245-250. doi:10.1097/JNN.0000000000000535. PMID:32740316.

Martin R, Taylor S, Palmieri TL. Mortality following combined burn and traumatic brain injuries: An analysis of the national trauma data bank of the American College of Surgeons. Burns. 2020 Sep;46(6):1289-1296. doi:10.1016/j.burns.2020.06.022. Epub 2020 Jul 3. PMID:32680663.

Panos NG, Cook AM, John S, Jones GM; Neurocritical Care Society (NCS) Pharmacy Study Group. Factor Xa Inhibitor-Related Intracranial Hemorrhage: Results From a Multicenter, Observational Cohort Receiving Prothrombin Complex Concentrates. Circulation. 2020 May 26;141(21):1681-1689. doi:10.1161/CIRCULATIONAHA.120.045769. Epub 2020 Apr 8. PMID:32264698.

Garza N, Toussi A, Wilson M, Shahlaie K, Martin R. The Increasing Age of TBI Patients at a Single Level 1 Trauma Center and the Discordance Between GCS and CT Rotterdam Scores in the Elderly. Front Neurol. 2020 Feb 20;11:112. doi:10.3389/fneur.2020.00112. PMID:32153493.