Diane Johnston is a Psychiatric Nurse Practitioner who has been in private practice for 22 years. Ms. Johnston specializes in psychiatric evaluations, medication management, psychotherapy and EMDR for the treatment of trauma. She works with adolescents, adults and families. Ms. Johnston offers a treatment approach that is comprehensive, holistic and patient focused. She has had extensive training in the area of mind body medicine where she also offers mindfulness and meditation training.


Desert Academy – informational talk
September 24 for parents of teens
How to identify if your Teen needs mental health devices

Support group for teens : Coping Skills for Today’s Teen – begins November 2019
Date to be announced

Patient Comments

“Diane has a true understanding of today’s adolescent. My daughter who had struggled for years with anxiety & depression felt an immediate connection with Diane.  She has been a tremendous support system for our family during a very difficult time.” – E.P.

“After having visited many professionals for my anxiety and depression, Diane was the only one who was able to make me feel at ease. She was able to navigate me out of the most difficult time in my life and I felt very safe and supported under her care. Though I still get the occasional day to day anxiety, Diane helped me gain the coping skills I needed and I am now able to challenge my distorted thinking instead of giving in to it.” – C. M.

“ I have been meeting with Diane for about five years and during that time she’s been very helpful.  She is a great listener and sincerely cares about her patients” – Jeff G.


Family Counseling

Ms. Johnston completed post-graduate Family Therapy training at the Family Therapy Institute of Westchester. Her specialty is in working with family members who are struggling with the care of a loved one. Ms. Johnston works with the family to resolve issues. She is able to help family members who may be depressed and anxious.

Private Practice

Ms. Johnston offers a comprehensive, holistic approach to psychiatric care. She has an expertise in psychiatric evaluations and medication management.  Ms. Johnston frequently collaborates with other therapists who refer their patients for evaluations for medication.  She is also an experienced psychotherapist and mind body practitioner.


Eye Movement Desensitization and Reprocessing is a highly effective treatment for trauma and PTSD (Post Traumatic Stress Disorder). EMDR treatment is widely accepted by both the medical community and the American Psychiatric Association for the treatment of trauma-related issues.