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Ariana Yea, PA-C
Ariana Yea, PA-C is a board-certified physician assistant who works with PNS. She was born and raised in Walnut, CA. Ariana graduated with a Bachelor of Sciences at the University of Michigan (Go Blue) in 2019 and a Master’s Degree in Physician Assistant Studies at Midwestern University in Glendale, AZ in 2022. Prior to working…
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Natalie Wong, PA-C
Natalie holds a Masters degree in Physician Assistant Studies from Boston University. After completing her education and training in Boston, MA, Natalie moved back to Orange County where she was born and raised. She is inspired to work with patients of all backgrounds to help them achieve their mental health goals. In her free time,…
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James D. Whisenhunt, MD
Dr. Whisenhunt specializes in the treatment of adults with psychiatric and substance use disorders. He has worked in emergency, inpatient, residential, outpatient, intensive outpatient, detoxification, telehealth and correctional settings. He completed his residency training in 2018 at the University of Southern California’s Keck School of Medicine and LAC+USC Medical Center in Los Angeles, California, serving…
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Cameron Vandenakker, PA-C
Cameron Vandenakker, PA-C, is a board-certified physician assistant at Pacific Neuropsychiatric Specialists. With a deep-rooted connection to the mental health field, Cameron’s early exposure came from his parents, both social workers at the Masonic Home for Children. There, he encountered adolescents grappling with abuse, mental health issues, and the need for medication. These formative experiences…
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Adam Tran, PA-C, CAQ-Psych
Adam Tran, PA-C, is a board-certified Physician Assistant dedicated to helping his patients navigate their journey toward improved well-being and a better quality of life.
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Sabrina Torres, PA-C
Sabrina Torres, PA-C, is a board-certified physician assistant at Pacific Neuropsychiatric Specialists. She grew up playing competitive soccer and earned a scholarship to Central Baptist College, where she completed her Bachelor of Science in Biology. Sabrina holds two master’s degrees from Keck Graduate Institute—one in Applied Life Sciences and the other in Physician Associate (Assistant)…
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James Tolentino, PA-C, CAQ-Psych
James Tolentino, PA-C is a board-certified Physician Assistant with a passion for providing exceptional patient care. James’ interest in healthcare led him to pursue a Bachelor of Science in Cellular and Molecular Biology from California State University Dominguez Hills. Prior to attending Midwestern University in Downers Grove, Illinois where he received his Master of Science…
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Brandon Stutz, PA-C, CAQ-Psych
Brandon Stutz is a board-certified Physician Assistant who works for Pacific Neuropsychiatric Specialists. Having worked with patients of all ages, Brandon provides care and treatment for adolescents, adults, and the elderly. Brandon is a Southern California native, and finds great pleasure in providing psychiatric services for his community. Brandon attended San Diego State University where…
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Mohammed Shreiba, MD
Mohammed Shreiba, MD, is a leading Psychiatrist at Pacific Neuropsychiatric Specialists (PNS). He sees psychiatric patients of all ages in the Mission Viejo location. He has a focus on anxiety, depression, dementia, ADHD, Bipolar Disorder, Adult and Geriatric Psychiatry. Dr. Shreiba earned his medical degree from University of Aleppo Faculty of Medicine. He received residency…
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Jennifer Sebastian, PA-C, CAQ-Psych
Jennifer Sebastian, PA-C, is a nationally board-certified Physician Assistant at Pacific Neuropsychiatric Specialists (PNS). Before gaining important clinical experience in psychiatry and addiction, Ms. Sebastian also worked as a PA in orthopedics and urgent care. Jen earned her Bachelor’s Degree in Biological Sciences from the University of California, Irvine and then studied nuclear imaging at…
