Mon - Sat 8.00 - 18.00
Sunday CLOSED
Get to know us
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


Dawn Escalera, Scheduler/Office Staff


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.
Services
Comprehensive mental health evaluation and treatment options.
Address 1
10630 Town Center Drive, Suite 110, Rancho Cucamonga CA91730
Tel numbers - (909)-919-7727 Fax numbers - (909)-919-2305
© 2025. All rights reserved.
Address 2
2380 N Sierra Way, San Bernardino Tel numbers - (909)-886-7475
Fax numbers - (909)-886-7305
EMAIL ADDRESS - Vistabehavior@outlook.com