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Department of Neurology

Department of Neurology

Neurology | Fellows and Residents

The goal of the Neurology Residency Training Program at UC Davis is to prepare residents for the independent practice of clinical neurology. The program provides broad exposure to patient care across the age spectrum in a variety of in-patient and out-patient settings.

The UC Davis Department of Neurology is a national leader in providing clinical care and conducting research in neurological disorders, particularly in epilepsy, dementia, neuro-immunology, neuromuscular diseases, movement disorders, and stroke. Graduates of the residency training program are well-prepared to enter clinical practice or to continue training in a subspecialty or neuroscience fellowship.

To learn more about the program, please visit the Neurology Residency Training Program pages.   



Dr. Sasha Duffy
Sasha Duffy,

Previously serving as Chief Resident in Neurology at UC Davis, Dr. Duffy is currently in the first year of her Fellowship in Movement Disorders. Originally from Santa Rosa, California, she earned her B.S. in Biology at UC Davis, her D.O. at Touro University in Vallejo, and she interned at Alameda County Medical Center Highland Hospital before joining the residency program at the UC Davis Medical Center. She enjoys travel, hiking, gardening, and cooking - especially for dinner parties and other social activities with family and friends.

She may be contacted at Alexandra.Duffy@ucdmc.ucdavis.edu.

Dr. James Ha
James Ha,

Currently serving as the department's Fellow in Clinical Neurophysiology, Dr. Ha earned his M.D. at the University of Illinois College of Medicine in Chicago before completing his residency in Neurology at UC Davis. Originally from Los Angeles, he received his B.A. in Public Health from Johns Hopkins, then his master's degree in Historical Theology from Westminister Theological Seminary in Escondido, CA.  In addition to his interest in sports, he enjoys reading, playing guitar and piano, and website design. 

He may be contacted at James.Ha@ucdmc.ucdavis.edu.


Dr. Joshua Dayananthan
Joshua Dayananthan,

Originally from Berkeley, Dr. Dayananthan grew up in the Bay Area and then attended UCLA, where he received his bachelor's degree in Psychobiology. He earned his M.D. at the University of Toledo College of Medicine in Toledo, Ohio. A sports fan who enjoys playing basketball and soccer, he also loves a wide variety of musical genres and playing guitar. He also enjoys creative writing and photography and he has a deep interest in faith and spirituality.

He may be contacted at Joshua.Dayananthan@ucdmc.ucdavis.edu.

Dr. Nijee Luthra
Nijee Luthra,
M.D., Ph.D.

Born in Nigeria, Dr. Luthra earned her B.A. in Biology at Lake Forest College near Chicago, then studied medicine and neuroscience at Loyola University Chicago Stritch School of Medicine, concurrently earning both her Ph.D. and M.D. She enjoys painting and drawing, reading fiction and writing poetry, watching movies and practicing yoga, and especially spending quality time with family and friends.

She may be contacted at Nijee.Luthra@ucdmc.ucdavis.edu.

Dr. Roy Poblete
Roy Poblete,

Originally from Rochester, New York, Dr. Poblete grew up in Niagara Falls on the Canadian side of the border. He received his bachelor's degree in Biology from Pacific Union College in Angwin, California, before earning his M.D. at Loma Linda University. Now in his fourth year of residency, Roy is interested in neurocritical care and stroke neurology. In his spare time he enjoys basketball, softball, tennis, and playing guitar.

He may be reached at Roy.Poblete@ucdmc.ucdavis.edu.


Dr. Matthew Chow
Matthew Chow,

Now in his fourth year of residency, Dr. Chow's primary interest is in general neurology. Originally from San Francisco, he received his bachelor's degree in Biotechnology from UC Davis and earned his M.D. at New York Medical College in Valhalla, NY. He enjoys playing soccer and attending local sporting events, as well as meeting friends in midtown Sacramento for fine dining and dancing. He also loves visiting friends and family in San Francisco, spending time out on the lake in Tahoe, and shopping/eating/wine tasting in the Napa Valley. 

He may be contacted at Matthew.Chow@ucdmc.udavis.edu.

Dr. Robert Greaux
Robert Greaux,

Dr. Greaux was born and raised in New Jersey and received his bachelor's degree in Psychology from Rutgers University. He earned his M.D. at Tufts University School of Medicine. His primary interests are in Neuro-Cognition/Behavior, Neurotoxicology, the Mind-Brain Problem, and Neuro/Brain-to-computer interfaces. He loves music, plays piano, builds computers, and is part-owner of a custom guitar, bass, and guitar electronics shop in Nashville. Since coming to Sacramento, he's also taken up a new hobby: panning for gold in the Sierra foothills.

He may be contacted at Robert.Greaux@ucdmc.ucdavis.edu.


Dr. Elizabeth Ekpo
Elizabeth Ekpo,

Dr. Ekpo is a third year resident from nearby Elk Grove, California, interested in headache and seizure treatment. After receiving her bachelor's degree in Biology from Oklahoma Christian University, she earned her M.D. at the University of Oklahoma College of Medicine. She loves participating in activities with family and friends from church and likes singing and learning new songs on the piano, dancing, attending Zumba classes, and fashion design ... and she looks forward each year to attending Sierra Bible Camp near Lake Almanor, where she serves as a camp counselor to the kids. 

She may be contacted at Elizabeth.Ekpo@ucdmc.ucdavis.edu.

Dr. Derek Holder
Derek Holder,

Dr. Holder grew up in Columbia, Missouri, and received his bachelor's degree in Psychology at Washington University in Saint Louis. He earned his M.D. at Chicago Medical School at Rosalind Franklin University of Medicine and Science, then interned at Mount Sinai Medical Center in New York. His primary interest is in stroke/vascular neurology. In his free time he enjoys hiking and kayaking and exploring the natural beauty of northern California, often accompanied by his little six-pound rescue dog, Loki, who loves going on road trips and hikes! 

He may be contacted at Derek.Holder@ucdmc.ucdavis.edu.

Dr. Benjamin Koo
Benjamin Koo,

A native Californian from Glendale, Dr. Koo received his bachelor's degrees in Chemistry and Biology at Pacific Union College in Angwin, California, before studying medicine at Loma Linda University and earning his M.D. Now in his third year of residency, he enjoys dining out and reading fiction in his spare time, and he keeps active by playing tennis and baseball.

He may be contacted at Benjamin.Koo@ucdmc.ucdavis.edu.

Dr. Jonathan Kuo
Jonathan Kuo,

Dr. Kuo is a third year resident from San Diego pursing interests in general neurology, epilepsy, and neuro-oncology. He earned his bachelor's degree in computer engineering at UC San Diego before turning to medicine and earning his M.D. at Chicago Medical School. Dr. Kuo has also completed a residency in nuclear medicine, and in his spare time he enjoys biking, tennis, photography, making pizza, and playing electric bass.

He may be contacted at Jonathan.Kuo@ucdmc.ucdavis.edu.

Dr. Paarth Shah
Paarth Shah,

Originally from Mumbai, India, Dr. Shah attended college at Arizona State University and earned his bachelor's degree in Molecular Biosciences and Biotechnology. He continued his studies at New York Medical College in Valhalla, NY, where he earned his M.D. In addition to watching college sports and playing football and basketball, he enjoys travel, fine dining, and online gaming.

He may be contacted at Paarth.Shah@ucdmc.ucdavis.edu.

Dr. Shweta Teckchandani
Shweta Teckchandani,

Dr. Teckchandani was born in India and grew up in the Bay Area, where she received her bachelor's degree in Integrative Biology from UC Berkeley.  She earned her D.O. at Touro University College of Osteopathic Medicine in Vallejo, California. A former model and host of a TV show about Bollywood music culture, she is passionate about dancing with many years of training in Bharatnatyam. She also enjoys painting, international cuisine, and all of the performing arts from around the world.

She may be contacted at Shweta.Teckchandani@ucdmc.ucdavis.edu.


Dr. Pasha Ansari
Mustafa Ansari,

A native Texan, Dr. Ansari earned his M.D. from the University of Texas School of Medicine after receiving his bachelor's degree in Biological Sciences from U.C. Davis. In his first year of neurology residency, he is particularly interested in neurocritical care. A dedicated NBA fan, he also enjoys playing basketball, hiking, distance running, and standup comedy. 

He may be contacted at Mustafa.Ansari@ucdmc.ucdavis.edu.

Dr. Gabriel Moreno
Gabriel Moreno,

Dr. Moreno was born and raised in Michigan, where he earned his bachelor's degree in Movement Science from the University of Michigan in Ann Arbor. He earned his M.S. in Exercise Biology at Wright State in Ohio and his M.D. at Wayne State University School of Medicine in Detroit. He also practices Tai Chi, Shaolin Kung Fu, and he loves to travel when time allows.

He may be reached at Gabriel.Moreno@ucdmc.ucdavis.edu.

Dr. Katherine Park
Katherine Park,

Dr. Park grew up in Washington state and earned her bachelor's degree in Neurobiology at the University of Washington before studying medicine at Loma Linda University and earning her M.D. She has traveled throughout Asia and much of Europe, taught English in Korea, and she enjoys cooking Korean food, baking, drawing, and watching musicals.

She may be contacted at Katherine.Park@ucdmc.ucdavis.edu.

Dr. Dionne Swor
Dionne Swor,

Dr. Swor grew up in a small town in Michigan before earning her B.S. in Cell and Molecular Biology at the University of Michigan. She earned her M.A. in Biotechnology at Columbia University, where she also enjoyed a career as a neuroscience researcher before her growing interest in medicine led her to the Touro College of Osteopathic Medicine in Harlem, New York, where she earned her D.O. Her other interests include music, art, weight training, and yoga.

She may be contacted at Dionne.Swor@ucdmc.ucdavis.edu.