405-2249 Carling Avenue, Ottawa, ON K2B 7E9

Phone : 613-564-7028

5519 Old Richmond Rd, Ottawa, ON K2R 1G4

Phone : 613-271-1300

Email : drdavidcrowe@outlook.com

Dr. Tuvia Hoffman, PhD, CPsych (Supervised Practice) RP

405-2249 Carling Ave, Ottawa, ON 

K2B 7E9

Phone: 613-596-5623 Ext 205
Email: drhoffman@drdavidcrowe.ca

About Our Psychologists

At Dr. David Crowe, our psychologists Dr. David Crowe and Dr. Tuvia Hoffman offer psychological treatments and assessments in Ottawa. Our professionals are dedicated to treating each individual with a positive psychological approach. Learn more about our psychologists.

Dr. David Crowe

Dr. Tuvia Hoffman

Dr. David Crowe

For as long as I can recall, I have had a keen interest in biography. In high school, I read all the biographies in the school library. Although I was registered in mathematics and virtually all my classmates chose university studies in engineering and science, the humanities remained a strong interest for me. An undergraduate degree in economics presented a compromise of sorts.

While studying economics, I maintained an interest in better understanding the mind. I read popular literature of the time, including The Myth of Mental Illness by Thomas Szasz, The Divided Self by R. D. Laing, and The Human Person by Magda Arnold and John Gasson. These books and other readings in philosophy, such as Paul Ricoeur’s Freud and Philosophy, Herbert Spiegelberg’s Phenomenology in Psychology and Psychiatry, and Joseph Donceel’s Philosophical Anthropology, had an enormous impact on me.

I was particularly interested in comparative economic systems, as its focus of study included the dynamics of social, economic, and historical relationships in diverse cultures and societal circumstances. In fact, systems theory was quite popular in the early 1970s and was adapted to the mental health field by many theorists in social work and, later, in psychology and psychiatry. Its essential presupposition is that individuals cannot be fully understood without understanding the context in which they live their day-to-day lives. It was probably no surprise that after achieving an undergraduate education in economics, I would decide to pursue studies in psychology.

Having never studied psychology, I applied to the University of Ottawa as they offered a qualifying year of studies in psychology for those wanting to pursue graduate studies in the field. Their psychology program was richly grounded in both the sciences and the humanities and provided intensive study in philosophical anthropology. The stated orientation of the graduate program in 1975 was “Christian Personalism in a Pluralistic Context.” It struck me as a bold statement in a society that was becoming rapidly more relativistic. However, the focus on personalism was compelling, insofar as personalists believe that the human person should be the ontological and epistemological starting point of philosophical reflection.

I entered the field of psychology at a time when existential and humanistic philosophy and psychology were very popular, as well as both Freudian and Neo-Freudian approaches to understanding psychopathology and treatment. Consequently, I became well-versed in humanistic and psychodynamic theory and practice. At the same time, a proliferation of studies using a learning theory model of human psychology suggested a more concrete or empirical approach to treatment, resulting in a treatment that might be more readily measured and more standardized in delivery.

There was also a rapidly growing interest in Albert Ellis and rational emotive therapy, Carl Rogers and person-centered therapy, and even Fritz Perls and gestalt therapy. These approaches represent a sharp contradistinction, not only to the Neo-Freudians (including Adler, Jung, and later, May, Kohut, Kernberg, Winnicott, and even more recently, Sullivan and Horney) but also, more significantly, to the emerging popularity of behaviorism (founded upon the philosophy of Logical Positivism). The latter was supported by Learning theory and its product, behaviour therapy, another rapidly expanding and increasingly popular therapeutic approach and the ancestor (so to speak) of the now predominant approach in psychotherapy, cognitive behaviour therapy (CBT).

These were very compelling times in psychology, with a great diversity of approaches to understanding and helping the human person. On one hand, positivists would complain of the idealism and questionable science of the psychodynamic and humanistic and existential approaches; on the other hand, idealists and realists would complain of the reductionistic materialism of the positivists, who might consequently “lose sight of the forest for the trees.” The advantage of being in the centre of these controversies was the opportunity to derive what was beneficial and realistic from all these points of view, which inclined many psychologists of the time, including myself, to adopt a so-called eclectic approach to treatment.

Dr. David Crowe

Today, I run my own psychology practice in Ottawa. Feel free to contact me for more information.

My Clinical Focus



BComm, Honours Economics, Loyola of Montreal, 1970

Thesis: A History of the Canadian Banking System

MPs, Clinical Psychology, University of Ottawa, 1975

Thesis: Self-Actualization and Influence of Therapist Values

PhD, Clinical Psychology, University of Ottawa, 1983

Thesis: Methylphenidate vs Parent Training in the Treatment of Hyperactive

Children: A Two-Year Follow-Up Study



University of Ottawa, Child Study Center (Internship)

  • Psychodiagnostic assessment
  • Individual therapy (adolescents) and play therapy (preschoolers)
  • Parent counselling
  • Family and marital therapy


Children’s Hospital of Eastern Ontario – Intern

  • Psychodiagnostic assessment
  • Psychoeducational assessment
  • Individual, family, and marital therapy


Ottawa Civic Hospital – Intern

  • Adult psychotherapy and psychodiagnostic assessment


Queensway Carleton Hospital – Psychometrist

  • In-patient and out-patient psychological assessment
  • Group and individual psychotherapy


  • Queensway Carleton Hospital – Psychologist


  • Queensway Carleton Hospital – Chief of Department


  • Queensway Carleton Hospital – Research Ethics Board Chair

Professional Affiliations

College of Psychologists of Ontario: Registration no. 1748

Canadian Register of Health Service Psychologists: Registration no. 00306

Member of the:

  • Ontario Psychological Association
  • Canadian Psychological Association
  • American Psychological Association
  • Ottawa Academy of Psychologists


Firestone, Philip; Crowe, David, et al.. “Vicissitudes of Follow‐Up Studies: Differential Effects of Parent Training and Stimulant Medication with Hyperactives.” American Journal of Orthopsychiatry, 1986, Vol. 56(2), pp.184-194

Della Zazzera, Claude and David Crowe. Two Essays on the Philosophy of Mental Health: Reflections on the Hermeneutics of Psychopathology and Psychotherapy, Ottawa, Miamine Press, 2015

Dr. Tuvia Hoffman 

PhD CPsych (supervised practice), RP

Therapy is a meaningful journey, and I feel privileged to be a part of the process. Whether clients hope to resolve situational problems or aim to resolve deeply ingrained personality traits, I help the client make the journey worthwhile. Clients engaging in therapy with me can expect to feel valued. I listen to my clients’ successes and challenges and help clients capitalize on their strengths. I also treasure my clients’ background and culture.In therapy, I blend a humanistic approach with scientific-based practice to help my clients achieve their goals. In the first session, I will listen to your stories and use current research and assessment tools to help with diagnosis. Collaboratively, we will set treatment goals and a treatment plan. Whether you are coming to treat mood, stress, or personality, or to learn how to deal with life’s difficult transitions, I will tailor the treatment plan to match your personality and goals.
My therapeutic method is an integrated humanistic/cognitive-behavioral therapy (CBT) model, but I also integrate acceptance and mindfulness-based approaches along with existential therapy. This integrative approach allows clients to explore life from several vantage points. CBT helps clients recognize faulty thinking, which may interfere with their goals in life. CBT is also helpful in creating a plan of action for better well-being. Acceptance and mindfulness-based approaches are useful in learning how to accept our experiences and circumstances, especially circumstances that cannot be changed. Humanistic and existential therapies allow for the exploration of essential themes as well as emotional expression. In therapy, I integrate these modalities to help increase the well-being of all my clients and to help them achieve what matters most in their lives. I have provided individual therapy, group therapy, and assessment for both inpatients and outpatients as a doctoral student at the Queensway Carleton Hospital and the Jewish General Hospital. Additionally, I provided assessment and therapy for Ottawa West Professional Services and the Centre for Interpersonal Relationships.
I am a member of the College of Psychologists of Ontario and the College of Registered Psychotherapists of Ontario. I am excited to be working again with Dr. David Crowe, who is my supervisor in my year of supervised practice.

Dr. David Crowe

405-2249 Carling Avenue

Ottawa, ON K2B 7E9

Phone : 613-564-7028

Second Location
5519 Old Richmond Rd
Ottawa, ON K2R 1G4

Phone : 613-271-1300

Other Phone Numbers






Dr. Tuvia Hoffman, PhD, CPsych (Supervised Practice) RP

405-2249 Carling Ave

Ottawa, ON K2B 7E9

Phone: 613-596-5623, Extension 205
Email: drhoffman@drdavidcrowe.ca

Appointment Hours

Dr. David Crowe

Monday – Friday: 07:00 AM – 05:00 PM

Dr. Tuvia Hoffman

Monday – Thursday : 08:00 AM – 06:00 PM

Friday: 08:00 AM – 12:00 PM

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