Welcome to Matter of Mind Psychiatry
At Matter of Mind Psychiatry, we believe healing begins with the courage to start, the clarity to pursue your purpose, and the commitment to grow. Our team provides compassionate, evidence-based care to support you wherever you are on your mental health journey.


Tarra Mandel is a dual board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP) and Family Nurse Practitioner (FNP) with over 15 years of diverse healthcare experience across multiple clinical settings, including cardiothoracic and transplant surgery as well as cerebrovascular and cardiac care. Her work in high-acuity environments reinforced her understanding of the association between physical and mental health, ultimately guiding her path toward becoming a PMHNP. Currently pursuing a Doctor of Nursing Practice (DNP), she remains committed to lifelong learning and to advancing the quality of mental health care for her patients.

Contact
909-551-2474
Each platform accepts different insurance plans, so please click the links below to view my profile and verify your coverage before scheduling an appointment.
*Cash payments are also accepted. Initial appointments are $300, follow-up appointments are $150. A sliding scale fee is available upon request.
Headway
Grow Therapy
Rula
Services
Adult Psychiatry
We offer personalized medication management for adults +18 navigating mood disorders and other mental health conditions.
Telehealth
All appointments are virtual. Sessions take place through a secure, HIPAA-compliant video platform, allowing us to meet in a safe, confidential setting within the state of California.
Referrals
We may refer online and in person therapy, neurocognitive and diagnostic testing.
What to expect during your first session:
As a Psychiatric Mental Health Nurse Practitioner, Tarra Mandel provides comprehensive, holistic care to help clients better understand their mental health through thorough evaluation and clear, educational communication.
Clients leave the first session with greater insight into their diagnosis, a thoughtful explanation of how medications may align with their goals, and a clear, collaborative plan for next steps.
Our approach to goal-setting with patients:
We prioritize education, present evidence-based treatment options, and empower clients to make informed decisions about their mental health.
We specialize in psychiatric medication management and believe in the thoughtful, individualized use of medication. In partnership with each client, we explore their needs, values, and concerns and recommend medication only when it aligns with their goals and clinical presentation.

About us
Matter of Mind Psychiatry is a leading mental health practice located in Redlands, California. Tarra Mandel is an experienced Psychiatric Mental Health Nurse Practitioner dedicated to providing compassionate and effective medication management services to help individuals overcome mental health challenges and achieve overall well-being.
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Comments
Tarra is an exceptional psychiatric nurse practitioner who provided comprehensive and compassionate medication management during a critical period in my treatment. With her expertise, I was able to successfully and safely taper off benzodiazepines—a process I had previously found overwhelming and difficult to navigate. Her structured approach, clear communication, and ongoing support were instrumental in my recovery. I credit her with significantly improving my quality of life and helping me achieve long-term stability. I highly recommend her to anyone seeking skilled and empathetic psychiatric care.
Finally, someone who gets it.
I’ve seen a few providers over the years, this was the first time I really felt like someone was paying attention. Tarra didn’t just nod and write things down. She actually asked meaningful questions and gave honest feedback. I walked away feeling like I had a better handle on what I was dealing with and what could help. She’s calm, real, and easy to talk to.