Who we are

Senta Counselling Services provides individual psychotherapy and couple counselling in Barrhaven. In addition to a wide-range of counselling services offered, special focuses involve women’s wellness, teen girls, anxiety management, and couple counselling.

Cassandra Petrella of Senta Councelling in Ottawa Ontario

Cassandra Petrella , MA, C.C.C
Registered Psychotherapist, Independent Practice

Education &  Certification

Cassandra Petrella is a Registered Psychotherapist with the College of Registered Psychotherapists of Ontario. She is also registered as Canadian Certified Counsellor with the Canadian Counselling and Psychotherapy Association. She holds a master’s degree in Counselling & Spirituality from a joint program at Saint Paul University & Ottawa University. She completed her degree with a both individual and couples counselling training. Her undergraduate degree was completed at Carleton University in the Bachelor of Arts, Honours Program, in Psychology.

Counselling Experience

Cassandra has developed several years of counselling experience in treatment, research and education. Special focuses of her work include women related issues, anxiety management and counselling for adolescent girls. She also focuses on on helping individuals improve interpersonal relationships through both individual and couple counselling approaches.

Prior to private practice, she had been a counsellor at the Saint Paul University Counselling Centre and Cornerstone Supportive Housing for Women. At the Saint Paul University Counselling centre, she worked with a wide-range of individuals and couples struggling with anxiety, depression, trauma, and relationship difficulties. At Cornerstone Supportive Housing for Women, she was a resident clinician for trauma survivors and women diagnosed with borderline personality disorder, schizophrenia, panic disorder and bipolar disorder.

Cassandra is a frequent guest lecturer at Carleton University and Saint Paul University. She is often invited to speak on the topics such as clinical approaches in therapy, women’s wellness, adolescent well-being and the importance of touch in human relationships. She also mentors novice therapists in the field as they start their own clinical practices.

She is a published author in both academic scientific journals and clinical book publications. Much of her publications focus on her research related to the role of touch in human connection.

Personal Approach to Counselling

I understand that life can be unpredictable and challenging at times, whether it’s day-to-day frustrations, ongoing issues or overwhelming circumstances. The first step is to understand that you have it within you to change. In therapy together, we will work towards overcoming the difficulties and obstacles you may be facing personally, at home, in the workplace, or with your significant other. You will be free to express and consult with me in an open and safe environment.

As a cognitive behavioural and attachment therapist, I take a hands on approach in my counselling to help clients develop coping skills which will allow them to personally reduce the symptoms they are experiencing. These coping skills are often life-long techniques which help reduce anxiety or depression and help improve interpersonal relationships. Therapy will be both emotionally explorative and solution focused in each and every session.


Stacie Mustaphi
Mental Wellness Author and Clinical/Administrative Support

About Stacie
Stacie Mustaphi can be found writing many of our mental wellness articles on sentacounselling.com. She provides insightful discussions on today’s key counselling issues. Stacie also provides both clinical and administrative support. She also holds an Undergraduate Double Major in Sociology and Psychology from the University of Ottawa. She does not yet provide direct therapy to clients as she is still completing her Master’s Degree in Marriage and Family Therapy. Upon completion of her Master’s Degree, she intends to specialize in counselling couples facing sexual challenges in their relationships.