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About Us –

Vista Behavioral Health Inc

At Vista Behavioral Health Inc, we are committed to providing comprehensive mental health care through expert evaluation, medication management, and personalized treatment plans. Our team of psychiatrists, nurse practitioners, and therapists works together to support individuals struggling with anxiety, depression, ADHD, schizophrenia, and more. With locations in Rancho Cucamonga and San Bernardino, we offer accessible and compassionate care tailored to your unique needs. Our goal is to help you achieve emotional well-being and a better quality of life. We also provide advanced treatments like TMS therapy for medication-resistant conditions. Your mental health matters—let us help you on your journey to healing.

Dr. Ochuko Diamreyan, M.D, psychiatrist

Dr. Flora Diamreyan, DNP, PMHN/FNP-BC

Roger Ngaha, PMHNP-BC

Rick Jacques, Medical Biller

Rancho Cucamonga Office Reception

Office Reception

Marie Herrera, Office Manage

Rosemary Roman, Office Manage

Attorney Rume Diamreyan-Legal Counsel

Guadalupe Marquez, Scheduler/Office Staff

San Bernardino Office Staff

Rancho Cucamonga. CA office Staff

Dr. Flora Diamreyan,DNP, FNP/PMHNP-BC

TMS Machine for Treatment of Depression etc.

Dawn Escalera, Scheduler/Office Staff