Current Residents

Neurosurgery Residents

The Oregon Health & Science University Neurosurgery Residency Training Program utilizes the inpatient and outpatient facilities and operative suites of the University Hospital (UHS), Doernbecher Children's Hospital (DCH), and the Veterans Administration Medical Center (VAMC).

Outpatient clinics are held at the University complex and at the Center for Health & Healing (CHH) located on the banks of the Willamette River.  The Portland Aerial Tram provides express transportation between the University Hospital and CHH (3 minutes). The average daily bed occupancy of the services is 50 to 60. Approximately 3600 surgical procedures are performed annually.

View the 2021-22 Neurosurgery Resident Roster.

Click on a year to expand the section and read more about the residents.

Erik Brown, M.D., Ph.D.

Erik Brown, M.D.

Undergraduate:  University of Michigan
Graduate:  Wayne State University
Medical School:  Wayne State University
Research Interests:  Language structure and function using modalities of cortical stimulation, DTI, fMRI, and, primarily, electrocorticography (ECoG)
Other Interests:  Foreign travel, guitar, camping, surfing, and ice hockey

Seong-Jin (Sunny) Moon, M.D.

Seong-Jin Moon, M.D.

Undergraduate:  University of Pennsylvania
Medical School:  University of Illinois College of Medicine
Research Interests:  Novel endoscopic applications to skull base pathologies, as well as incorporation of neuroprosthetics
Other Interests:  His Korean heritage, traveling, playing piano, spending time with family, and rooting for the LA Dodgers

Erik Larson, M.D.

Erik Larson, M.D.

Undergraduate:  Washington State University
Medical School:  University of Washington, Seattle
Research Interests:  Minimally invasive cranial and spinal surgery, clinical outcomes, and quality improvement
Other Interests:  Spending time with his family, cooking, and hiking

David Mazur-Hart, M.D., M.S.

David Mazur-Hart, M.D.

Undergraduate:  University of Puget Sound
Graduate:  Eastern Virginia Medical School 
Medical School:  Eastern Virginia Medical School 
Research Interests:  Studying vascular pathologies of the brain and spinal cord, as well as developing policies and processes aimed at reducing healthcare costs
Other Interests:  Hiking, baseball, basketball, golf, music, and board games

Alessandra Mantovani, M.D.

Alessandra Mantovani, M.D.

Medical School:  University of Modena and Reggio Emilia, Italy
Residency:  University of Modena and Reggio Emilia, Italy
Fellowships:  University of Washington, Seattle, University of Florida, Gainesville, Stanford University, Boston Children’s Hospital/Harvard Medical School
Research Interests:  Brain-computer interface and cerebrovascular disease
Other Interests:  Traveling, outdoor activities, listening to music, and playing and watching team sports with friends

Nasser Yaghi, M.D.

Nasser Yaghi, M.D.

Undergraduate:  Texas A&M University
Medical School:  Baylor College of Medicine
Research Interests:  Using immunotherapy and precision medicine to develop treatments for primary brain tumors
Other Interests:  Trail running/hiking, snowboarding, surfing, fly fishing, biking, reading, and his family's pizza business

Stephen Bowden, M.D.

Stephen Bowden, M.D.

Undergraduate:  Manhattan School of Music
Medical School:  Columbia University's College of Physicians and Surgeons
Research Interests:  Liquid biopsy techniques, radiologic biomarkers for recurrence, and identifying immune mechanisms of treatment resistance in glioma; fluorescence-guided tumor surgery; improving feedback mechanisms and training curriculum for residents
Other Interests:  Piano, hiking, photography, golf, soccer, and tennis

Miner Ross, M.D., M.P.H.

Miner Ross, M.D.

Undergraduate:  Occidental College
Graduate:  University of Southern California
Medical School:  New York Medical College
Research Interests:  Patient safety/quality improvement and big data applications for improving outcomes and clinical processes in neurosurgery
Other Interests:  Swimming, hiking, camping, and reading

Dominic Siler, M.D., Ph.D.

Dominic Siler, M.D.

Undergraduate:  California State University, Long Beach
Graduate:  Oregon Health & Science University
Medical School:  Oregon Health & Science University
Research Interests:  Microvascular dysfunction in subarachnoid hemorrhage, as well as developing new therapies for patients and new educational tools to better prepare surgical residents for the operating room
Other Interests:  Spending time with his wife and stirring up trouble with his two kids

Daniel Munger, M.D.

Daniel Munger, M.D.

Undergraduate:  Brown University
Medical School:  University of Massachusetts Medical School
Research Interests:  The efficacy and toxicity of intratumoral injection as an immunotherapy delivery method
Other Interests:  Running, hiking and mountain biking

Brannan O'Neill, M.D.

Brannan O'Neill, M.D.

Undergraduate:  Emory University
Medical School:  Tulane University School of Medicine
Research Interests:  Spinal cord physiology and injury, autism spectrum disorders, and aneurysm pathogenesis
Other Interests:  Volleyball, traveling, reading, and being outside

Ali Rae, M.D., M.P.H.

Ali Rae, M.D.

Undergraduate:  Emory University
Graduate:  Columbia University
Medical School:  Warren Alpert Medical School of Brown University
Research Interests:  Brain tumors, language processing, and using big data to assess clinical treatment algorithms
Other Interests:  Travel, philosophy, fencing, and the outdoors

Christian Giovanniis Lopez Ramos, M.D., M.C.R., M.P.H.

Christian Lopez Ramos, M.D.

Undergraduate:  University of California, Berkeley
Graduate:  University of California, San Diego and Harvard T.H. Chan School of Public Health
Medical School:  University of California, San Diego
Research Interests:  Understanding the impact of patient, clinical, and health system factors on the provision of care and outcomes in neurosurgery
Other Interests:  Playing the piano and guitar, soccer and writing screenplays

Maryam Nour Shahin, M.D.

Maryam Shahin, M.D.

Undergraduate:  University of California, Davis
Medical School:  Wright State University Boonshoft School of Medicine
Research Interests:  Tumor immunology
Other Interests:  Soccer, cycling, practicing Brazilian Jiu Jitsu, playing the flute and traveling to foreign countries

Erin Yamamoto, M.D., M.S.

Erin Yamamoto, M.D.

Undergraduate:  Colorado College
Graduate:  Cleveland Clinic Lerner College of Medicine at Case Western Reserve University
Medical School:  Cleveland Clinic Lerner College of Medicine at Case Western Reserve University
Research Interests:  Immunology, Alzheimer's disease
Other Interests:  Tennis, running, and playing soccer

Charles de Leeuw, M.D., M.S., Ph.D.

Charles de Leeuw, M.D.

Undergraduate:  University of Alberta
Graduate:  Case Western Reserve University and University of British Columbia, Vancouver, BC
Medical School:  Case Western Reserve University
Research Interests:  Functional genomics for identifying novel cancer therapies and combination chemotherapy
Other Interests:  Sci-fi and horror movies, traveling, working out at the gym, playing tennis, and skiing

Paxton Gehling, M.D., M.P.H.

Paxton Gehling, M.D.

Undergraduate:  Willamette University
Graduate:  Oregon Health & Science University
Medical School:  Oregon Health & Science University School of Medicine
Research Interests:  Neurosurgical epidemiology, cost-effectiveness analysis, and quality improvement
Other Interests:  Playing jazz piano, cooking, fly fishing, and trail running

Matt McIntyre, M.D.

Matt McIntyre, M.D.

Undergraduate:  Boston University
Medical School:  New York Medical College
Research Interests:  Outcomes following traumatic brain and spine injury and cerebrovascular disease
Other Interests:  Sailing, cycling and scuba diving

Yasmeen Elsawaf, M.D.

Yasmeen Elsawaf, M.D.

Undergraduate:  University of California, San Diego
Medical School:  University of Central Florida College of Medicine
Research Interests:  Pediatric and fetal neurosurgery, hydrocephalus, global health, socioeconomic impact on neurosurgical outcomes, and diversity and inclusion in neurosurgery
Other Interests:  Rock climbing, hiking, guitar, landscape photography

Christina Gerges, M.D.

Christina Gerges, M.D.

Undergraduate:  University of California, Los Angeles
Medical School:  Case Western Reserve University
Research Interests:  Cranial and spinal trauma, neurocritical care, spine oncology
Other Interests:  Rock climbing, hiking, guitar, landscape photography

Michael Rothbaum, M.D.

Michael Rothbaum, M.D.

Undergraduate:  Cornell University
Medical School:  New York Medical College
Research Interests:  Pediatric tumors, epilepsy, and congenital malformations of the brain and spine; Developing and implementing novel educational experiences and resources for medical student and resident neurosurgical education
Other Interests:  Road cycling, hot yoga, sourdough bread baking, Middle Eastern cooking, modern art, Spanish film