University of California, Riverside

Graduate Medical Education



Meet Our Residents


Meet Our Residents

The Psychiatry Residency Program, sponsored by the UCR School of Medicine, began in July 2014 with four trainees. In 2017 the program expanded to take five trainees each year.

PGY-1 • Arrived in 2017

Doug Grover, M.D.

Dr. Douglas Grover grew up locally in Moreno Valley, California and attended California State University San Bernardino, where he received an undergraduate degree in biochemistry. He didn’t have to travel far for medical school, being a graduate of the inaugural class in the University of California Riverside School of Medicine.

Grover was initially interested in pursuing anesthesiology, but found during the psychiatry rotations that his true passion was helping those who face the challenges of mental health illnesses. He chose UC Riverside for both his medical degree as well as residency training because of the underserved patient population it focuses on, as well as the opportunity to give back to the community he was raised in. He is particularly interested in schizophrenia, bipolar disorders, and neuromodulation treatment methods.

Troy Kurz, M.D.

Dr. Troy Kurz is a native to the area as he grew up in Chino Hills, California. He attended Point Loma Nazarene University in San Diego, California for his undergraduate studies and majored in biology and chemistry. Kurz attended medical school at Creighton University in Omaha, Nebraska. Throughout his medical education, Kurz did research on underserved populations with work published in the Journal of the American Board of Family Medicine for the research on the impact of funding instability on the teaching health center graduate medical education program. During his psychiatry rotations, Kurz discovered his fascination with the human mind, the rewards of aiding patients in their recovery from mental illness, and an appreciation for the legal side of psychiatry.

Kurz decided on UC Riverside for his psychiatry residency training because of the program’s emphasis on community psychiatry, partnership with Patton State Hospital, the passionate and supportive program leadership, and the flexibility residents have in developing their professional and personal lives. Kurz's interests include inpatient adult psychiatry, primary psychotic disorders, forensic psychiatry, and mindfulness.

Diem Nguyen, M.D.

Dr. Diem Nguyen grew up in San Jose, CA. She attended UC Davis for undergraduate and majored in neurobiology, physiology, and behavior. After graduating UCD, she worked at the Regional Center with disabled children with cerebral palsy, autism, and Down syndrome. Diem moved to Los Angeles to attend medical school at UCLA David Geffen School of Medicine. At UCLA, she discovered the extreme spectrum of psychopathology and the often silent suffering it induces in patients. For her, psychiatry seeks to understand the patient as a whole rather than as individual parts.

Nguyen came to UC Riverside for residency training because the program offers a rare combination of both academic and community psychiatry, through multiple diverse settings. At UCR, there is a focus on serving an underserved community while also supporting the wellness of physicians. Her interests include psychosomatic psychiatry and adult inpatient psychiatry.

Kevin Simonson, M.D.

Dr. Kevin Simonson was born and raised in San Diego, California. He completed his undergraduate degree at Humboldt State University with a major in molecular biology and minors in psychology and chemistry. Kevin volunteered in a hospice for over three years during college and gained an appreciation for the psychological and existential/spiritual dimensions of health care. Kevin was also involved in research on human serotonin genetics, complicated grief, and community-based approaches to improving rural public health. Simonson attended UC Irvine School of Medicine where he realized his passion for psychiatry and developed further interest in addiction and adolescent psychiatry.

Simonson chose UC Riverside because of its focus on both academic and community psychiatry, the unparalleled encouragement and kindness of the program's leadership and staff, and the residency's distinguished support of physician wellness.

Joshua Valverde, Jr., M.D.

Dr. Joshua Valverde was born and raised in Salinas, California. He completed his undergraduate studies at UC Davis, majoring in neurobiology, physiology, and behavior. After graduating he worked as a research lab assistant and later as an ophthalmology medical technician. Realizing his passion for working with patients, he moved across the country to attend the University of Illinois College of Medicine at Peoria. There he found his calling in psychiatry and enjoyed learning how medicine fits with the biopsychosocial model.

Valverde was initially attracted to UC Riverside because of its excellent training in community psychiatry and its dedication towards underserved populations. Moreover, he was drawn-in by the program’s highly supportive atmosphere amongst professional faculty and staff. His interests include child and adolescent psychiatry, mood and anxiety disorders, and psychotherapy.

PGY-2 • Arrived in 2016

Karla Lozano, M.D.

Karla Lozano

Dr. Karla Lozano grew up in sunny San Diego, California and received her undergraduate degree in human biology from the University of California, San Diego. She remained in Southern California throughout her medical training, at the UC Irvine School of Medicine, and received her M.B.A .from the UC Irvine Paul Merage School of Business.

Lozano became fascinated with mental illness and human behavior during medical school. Her passion for helping the underserved ultimately brought her to UC Riverside, as the program has strong ties to the community and encourages outreach projects. Furthermore, she valued the program’s county affiliation, culture of collaboration and highly supportive faculty and administration. Lozano’s interests include psychopharmacology, addiction, forensic and child psychiatry.

Khai Nguyen, M.D.

Khai NguyenDr. Khai Nguyen is a first-generation Vietnamese-American who grew up in San Jose, California. He attended UC Davis for his undergraduate studies and majored in neurobiology, physiology, and behavior. After college, he took time off to pursue his interest in health disparities research. He then stayed close to home when he chose to attend UC Davis for medical school. During his psychiatry rotations, Nguyen discovered his fascination with the human mind, the rewards of aiding patients in their recovery from mental illness, and the appreciation for the humanistic approach of psychiatry.

Nguyen decided on UC Riverside for his psychiatry residency training because of the program’s emphasis on community psychiatry, the passionate and supportive program leadership, and the flexibility residents have in developing their professional and personal lives. Nguyen’s interests include inpatient adult psychiatry, primary psychotic disorders, psychotherapy, and mindfulness.

Nathan Rogers, M.D.

Nathan RogersDr. Nathan Rogers graduated from Bates College with a double major in psychology and studio art before completing his medical education at nearby Maine Medical Center as part of Tufts University School of Medicine’s “Maine Track.” Nathan lived in California for several years between college and medical school, during which he raced as a competitive cyclist. Though his experiences in cycling led him to initially pursue orthopedic surgery, he found himself consistently more intrigued by the emotions and thoughts of patients than their physical injuries. After this revelation, the switch to psychiatry was a natural one.

UC Riverside appealed to Rogers due to its cooperative and respectful environment, its prioritization of community mental health, and its ideal location central to multiple cities, beaches, and mountains. His interests include mood and anxiety disorders, psychotherapy, and physician wellness.

Toshia Ann Yamaguchi, M.D.

Toshia YamaguchiDr. Toshia Ann Yamaguchi is originally from Fresno, California. She completed her undergraduate studies at UC Davis, majoring in biology with an emphasis in Evolution, ecology, and biodiversity and minoring in Spanish. Yamaguchi moved to Omaha, NE to attend Creighton University School of Medicine, where she studied the treatment of the mind, body, and soul. At Creighton, she realized her passion for helping patients with mental illness, one of the most underserved patient populations.

Yamaguchi found a cohort of faculty and residents with similar interests and a desire to serve patients at UC Riverside.  The program’s twenty-first century philosophy offers exciting opportunities and a culture that affords work-life balance.


PGY-3 • Arrived in 2015

Michael Ingram, M.D.

Michael IngramDr. Michael Ingram grew up in the suburbs of Sacramento, California and received his undergraduate degree in biochemistry at Occidental College in Los Angeles. After receiving his Master of Science in global medicine at the Keck School of Medicine of the University of Southern California, Ingram traveled across the country to Albany, New York where he attended Albany Medical College.

Although initially interested in surgery, Ingram quickly became fascinated with human behavior and fell in love with dissecting the human mind. He chose UCR for its receptive faculty and administration, its unique association with a county system, and its dedication to making mental health a priority in under served communities. Ingram’s interests include psychosomatic medicine, psychopharmacology, personality disorders, and bipolar disorder.

Monish Parmar, M.D.

Monish ParmarDr. Monish Parmar grew up in California, attended university at California State University, East Bay, and received his M.D. from the Medical College of Virginia in Richmond, Virginia.

Parmar chose UC Riverside because it genuinely encourages its residents to pursue their passions. Having worked with underserved populations in the past, Parmar is looking forward to continuing this service during the next four years.

Additionally, the collegial atmosphere between the faculty and residents at UCR was a major draw for Monish. The fact that Riverside is a stone’s throw away from some of the best beaches in the world was just a bonus for him.

Kazuo Omi, M.D.

Kazuo OmiDr. Kazuo Omi, M.D., or Kaz as he prefers to be called, grew up in Oakland, CA. He attended public school there all of the way through high school. He draws upon those formative years to better understand psychopathology.

Omi majored in biochemistry and molecular biology at UC Davis, then went to Washington University in St. Louis for medical school. He initially planned on a career as a pathologist and was part of the Medical Scientist Training Program (M.D./Ph.D. program), but during his years in lab he discovered that he preferred helping people to experimenting on mice.

Having earned his M.A. in immunology and pathology, as well as the ability to “speak science,” Omi hopes to bridge the gap between clinical and basic science departments as a member of the UCR psychiatry residency.

Evan Trager, M.D.

Evan TragerDr. Evan Trager originally hails from New Jersey and attended Swarthmore College, where he majored in biology with a focus on plant biology, using molecular tools to better understand cell wall construction. He graduated from the University of California, San Francisco School of Medicine.

Trager chose the UC Riverside psychiatry residency program because it was an ideal fit based on the program's strong commitment to social justice.

Trager has an interest in working with children, particularly in the juvenile justice and child welfare systems, and plans on pursuing fellowships in child and adolescent and forensic psychiatry.

More Information 

General Campus Information

University of California, Riverside
900 University Ave.
Riverside, CA 92521
Tel: (951) 827-1012

Department Information

Graduate Medical Education
2608 School of Medicine Education Building

Tel: (951) 827-7669

E-mail: medschool@ucr.edu

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