Katharina Hill, MD
Psychiatrist
11820 Ave Of Industry
San Diego, CA 92128
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115 providers
Availability last updated 09/01/2026
Katharina Hill, MD
Psychiatrist
11820 Ave Of Industry
San Diego, CA 92128
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Dr. Amira Collison is a Board-Certified Adult Psychiatrist and Board-Eligible Child & Adolescent Psychiatrist who provides comprehensive psychiatric care for children, adolescents, and adults. She completed her medical degree at the Johns Hopkins University School of Medicine, followed by both her Adult Psychiatry Residency and Child & Adolescent Psychiatry Fellowship at the UCLA Semel Institute for Neuroscience and Human Behavior. Her clinical interests include neurodevelopmental disorders (ADHD and autism spectrum disorder), anxiety and obsessive-compulsive disorders, mood disorders, trauma-related disorders, and psychotic disorders. During residency, she received advanced training in the treatment of complex mood disorders through the UCLA Mood Disorders Clinic, where she developed expertise in treating treatment-resistant depression, using evidence-based medication management, Transcranial Magnetic Stimulation (TMS), and intranasal ketamine.
Dr. Collison believes that exceptional psychiatric care begins with understanding the whole person—not simply treating symptoms. She partners closely with patients and families to develop individualized, evidence-based treatment plans that may include medication management, psychotherapy, family therapy, lifestyle interventions, and TMS when appropriate. Her approach emphasizes collaboration, compassion, and creating a supportive environment where patients feel heard, understood, and empowered throughout treatment. In addition to her clinical practice, Dr. Collison maintains an academic appointment at UCLA, where she teaches and supervises medical students, psychiatry residents, and child & adolescent psychiatry fellows.
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(*Click here for curriculum vitae)
Amira Collison
Psychiatrist
33971 Selva Road
Suite 200
Dana Point, CA 92629
Alireza Bozorgi, MD, is a board-certified neurologist and interventional pain management physician who also specializes in epilepsy and pain management. He sees patients at Minimally Invasive Medical Group, which has offices in Lake Forest, Mission Viejo, and Irvine, California.
He received his medical degree from Tehran, Iran. He completed a neurology residency at Tehran University. He then completed another neurology residency at Case Western Reserve University in Cleveland, Ohio. He obtained a subspecialty in Epilepsy in Cleveland. He worked for two years at Mercy Hospital in Youngstown, Ohio. Then, he completed a year of fellowship in pain management in Cleveland. Then, he moved to Detroit, Michigan, where he practiced for a year. He then moved to California and started to practice at Minimally Invasive Medical Group.
Dr. Bozorgi has a wealth of research experience and has published extensively. He is a member of several professional associations, including the American Board of Neurology and Psychiatry.
Dedicated to providing quality, compassionate patient care, Dr. Bozorgi is currently accepting new patients.
He offers medical, interventional, and invasive management of chronic pain including pain arising from spine, joints, limbs, and headache. His approach to ailments is holistic one, incorporating several frontiers of treatment.
He spends all other time not practicing medicine with his family and traveling.
Dr. Alireza Bozorgi, MD,
Psychiatrist
26921 Crown Valley Parkway
#120
Mission Viejo, CA 92691
Barbara Huynh, DO
Psychiatrist
30211 Avenida de las Banderas
Suite 200
Rancho Santa Margarita, CA 92688
Debbie Chang, MD
Psychiatrist
30211 Avenida de las Banderas
Suite 200
Rancho Santa Margarita, CA 92688
Dr. Ellen Machikawa, MD
Psychiatrist
30211 Avenida de las Banderas
Suite 200
Rancho Santa Margarita, CA 92688