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About Mentality Behavioral Health Center

Dedicated to Excellence

Expert Team of Professionals

Expert Team of Professionals

Mentality BHC (Behavioral Health Center) is a distinguished outpatient psychiatry clinic dedicated to delivering exceptional outpatient mental health services. 


Established in 2023, Mentality BHC builds upon expertise of founder and board certified psychiatrist, Dr. Wethey.

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Expert Team of Professionals

Expert Team of Professionals

Expert Team of Professionals

At Mentality BHC, our esteemed team comprises a select group of professionals committed to providing comprehensive care to individuals seeking support for their mental health concerns. 


Our multidisciplinary team includes board certified psychiatrist, psychologists, and psychiatric nurse practitioners. 

Meet Our Team

Accepted Insurance and Payments

Accepted Insurance and Payments

Accepted Insurance and Payments

We accept major insurance policies and offer self-pay options to accommodate varying needs and preferences. 

Learn More

Services Provided

Accepted Insurance and Payments

Accepted Insurance and Payments

Mentality BHC offers in person and virtual appointments for psychiatric medication management, as well as, individual psychotherapy. 


Mentality BHC is currently accepting new patients, and we look forward to welcoming you into our care.

Learn More

Contact Us

750 North Diamond Bar Blvd, 

Suite 212

Diamond Bar, CA 91765

Mentality Behavioral Health Center

750 Diamond Bar Boulevard, Diamond Bar, California 91765, United States

909-460-8733

Hours

Open today

09:00 am – 05:00 pm

For non-urgent questions and inquiries, message us here.

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Our Team

Kevin Wethey, M.D.

Dr. Wethey graduated from St. George's University, School of Medicine and completed his psychiatric residency with Kaiser Permanente, Fontana. He is currently the Medical Director at Canyon Ridge Hospital in Chino, California. 

Nancy Rehfeld, PMHNP

Nancy is a board certified, mental health nurse practitioner.

Anna Murphy, PMHNP

Anna is a board certified, mental health nurse practitioner. 

Accepting new patients.

Shana Garcia, PsyD

Shana is a licensed clinical psychologist, specializing in individual psychotherapy.

Accepting new patients.

Accepted Insurance and Payments

We accept major insurance policies and offer self-pay options to accommodate varying needs and preferences.

Aetna

Anthem

Blue Cross

Blue Shield

Cigna

Emanate

Health Net

Magellan

Medicare

Optum

United Health Care

...and more


Please call us and we can verify your insurance coverage. 

Areas of Expertise

  • Depressive Disorders
  • Anxiety Disorders
  • Bipolar Disorders
  • ADHD
  • Schizophrenia
  • Eating Disorders
  • Autism Spectrum Disorders
  • Borderline Personality Disorder
  • LGBTQ+ Tailored Care 


         And many others

Copyright © 2025 Mentality Behavioral Health Center - All Rights Reserved.

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