Dr. William Henry Gnam – Psychiatrist | North York, ON

Dr. William Henry Gnam is a dedicated Psychiatrist specializing in the diagnosis, treatment, and prevention of a wide range of mental, emotional, and behavioral disorders in adults, and may see older adolescents for certain conditions. Practicing at Toronto General Hospital in North York, ON, he is a key member of the local mental healthcare community. He provides comprehensive psychiatric care, including diagnostic assessment, medication management, and psychotherapeutic interventions for a variety of conditions such as mood disorders, anxiety disorders, and psychotic disorders. His practice is committed to delivering confidential and respectful mental health care, fostering a safe space for patients to explore their concerns and work towards recovery and well-being.

Dr. Gnam graduated with a Medical Degree from the University of Calgary in Canada. With over 30 years of experience as a Psychiatrist since 1994, he has developed a deep expertise in mental health care. He is recognized as a RCPSC Specialist by the College of Physicians and Surgeons of Ontario (CPSO), ensuring adherence to the highest standards of medical practice and professionalism.

He is committed to a collaborative approach to care, emphasizing patient empowerment through education and understanding. Dr. Gnam employs evidence-based treatment strategies and fosters a therapeutic alliance built on trust and respect. Fluent in both English and French, he facilitates effective communication with a diverse patient population in North York, ensuring personalized and culturally sensitive care.

Dr. William Gnam provides assessment and treatment for a wide spectrum of mental health conditions, including:

Mood Disorders

• Major Depressive Disorder (MDD) / Clinical Depression: Persistent feelings of sadness, loss of interest or pleasure, fatigue, changes in appetite or sleep, and difficulty concentrating, significantly impairing daily functioning.
• Adjustment Disorder with Depressed Mood: Development of emotional or behavioral symptoms like sadness or hopelessness in response to an identifiable stressor occurring within 3 months of the onset of the stressor.

Substance-Related & Addictive Disorders (Dual Diagnosis)

• Gambling Disorder (Behavioral Addiction): Persistent and recurrent problematic gambling behavior leading to clinically significant impairment or distress.
• Cannabis Use Disorder: Continued use of cannabis despite clinically significant impairment or distress.
• Dual Diagnosis (Co-occurring Substance Use Disorder & Other Mental Illness): The simultaneous presence of a substance use disorder and one or more other psychiatric disorders (e.g., depression, anxiety, bipolar disorder, schizophrenia).

Schizophrenia Spectrum & Other Psychotic Disorders

• Delusional Disorder: Characterized by one or more firmly held false beliefs (delusions) that persist for at least one month, without other prominent symptoms of schizophrenia.
• Substance/Medication-Induced Psychotic Disorder: Psychotic symptoms (hallucinations or delusions) that develop during or soon after substance intoxication or withdrawal or after exposure to a medication.
• Schizophrenia: A serious mental disorder affecting how a person thinks, feels, and behaves, often involving delusions, hallucinations, disorganized speech, and impaired functioning.

This list is not exhaustive. Effective mental health care is highly personalized. Please consult with Dr. William Gnam for an accurate diagnosis and tailored treatment plan.

• Psychopharmacological Management & Medication Optimization: Prescribing, monitoring, and adjusting psychotropic medications (e.g., antidepressants, antipsychotics, mood stabilizers, anxiolytics, stimulants) to treat various mental health disorders, focusing on efficacy, tolerability, and minimizing side effects.
• Crisis Intervention & Urgent Psychiatric Assessment (in appropriate settings): Providing rapid assessment and intervention for individuals experiencing acute psychiatric crises, such as suicidal ideation, acute psychosis, or severe agitation, typically in emergency departments or crisis clinics.
• Supportive Psychotherapy: A therapeutic approach aimed at reducing distress, reinforcing coping mechanisms, and improving adaptive functioning through a supportive therapeutic relationship.
• Second Opinion Consultations for Complex Psychiatric Cases: Providing expert second opinions on challenging diagnoses, treatment-resistant conditions, or complex psychopharmacological management plans.
• Capacity Assessment (Mental Capacity/Competency Evaluation - specific contexts): Specialized evaluations to determine an individual's mental capacity to make informed decisions regarding treatment, finances, or other legal matters, often in forensic or geriatric settings.
• Individual Psychotherapy (various modalities): Offering one-on-one talk therapy tailored to individual needs, potentially incorporating elements from different therapeutic approaches (e.g., psychodynamic, CBT, supportive).

Note: This list provides a general overview. Treatment approaches are highly individualized. Please discuss with Dr. Gnam for care relevant to your specific mental health needs.

All psychiatric services are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO) and relevant psychiatric care guidelines. Contact the clinic or your referring physician regarding new patient intake and referral processes.

Toronto General Hospital in North York's areas near central North York offers a discreet and welcoming environment for mental health care. The practice is situated within a reputable healthcare facility that is easily accessible via local public transit, including bus and subway options. The surrounding neighborhood features numerous local points of interest, with parking options available—some with direct access to the building. The facility is wheelchair accessible and aims to provide a comfortable and private environment for all patients. The practice respects patient confidentiality and strives to offer a calm, professional setting conducive to effective mental health treatment.

Are psychiatric consultations and treatments with Gnam, a Psychiatrist, covered by Ontario Health Insurance Plan (OHIP) in ON?

Medically necessary consultations, diagnostic assessments, and medication management provided by a licensed Psychiatrist like Gnam are generally covered by Ontario Health Insurance Plan (OHIP) in ON when a referral from a family doctor is in place. Coverage for psychotherapy services provided by a psychiatrist can vary; some provinces cover it, while others may have limitations or it may be part of hospital-based programs. Specific medications may also require special authorization or be subject to formulary restrictions. It's crucial to discuss coverage specifics for therapy or any specialized treatments with Gnam's office or Ontario Health Insurance Plan (OHIP).

Do I need a referral to see Gnam, a Psychiatrist?

Yes, a referral from your family physician or another medical doctor (e.g., a pediatrician for child psychiatry, or an ER physician for urgent assessment) is almost always required to see a Psychiatrist such as Gnam for services covered by the provincial health plan. Mental health conditions often benefit from initial assessment by a primary care provider who can determine the need for specialist psychiatric care. The referral ensures coordinated care, appropriate triaging, and transfer of relevant medical history.

How can I prepare for my first appointment with Gnam?

For your first psychiatric appointment with Gnam, it's helpful to gather some information beforehand. Try to make a list of your main concerns, symptoms (including when they started, how often they occur, and their intensity), and any significant life events or stressors. Bring a list of all current medications (psychiatric and non-psychiatric), including dosages, as well as any past psychiatric medications you've tried and your experience with them. Information about your family history of mental health conditions can also be very useful. Be prepared to discuss your personal history, social situation, and coping strategies. Writing down any questions you have for Gnam can also ensure you get the most out of your consultation.

What does a Psychiatrist like Gnam specialize in?

A Psychiatrist is a medical doctor (MD) who has completed specialized training in psychiatry, which is the branch of medicine focused on the diagnosis, treatment, and prevention of mental, emotional, and behavioral disorders. Unlike psychologists, psychiatrists can prescribe medication. He is a Psychiatrist who assesses, diagnoses, and treats mental, emotional, and behavioral disorders through medication, psychotherapy, or other interventions. Gnam is trained to assess both the mental and physical aspects of psychological problems and can provide a range of treatments including psychotherapy, medications, and sometimes other interventions like ECT or rTMS.

When should someone consider a referral to a Psychiatrist like Gnam?

A referral to a Psychiatrist like Dr. Gnam is typically considered when mental health symptoms are severe, persistent, complex, or not responding adequately to initial treatments provided by a family doctor or therapist. This can include: thoughts of suicide or self-harm; severe depression or mania; psychosis (hallucinations, delusions); debilitating anxiety or panic attacks; complex PTSD; severe OCD; suspected bipolar disorder or schizophrenia; treatment-resistant depression; or when medication management by a specialist is indicated. Psychiatrists are also consulted for diagnostic clarification and comprehensive treatment planning, especially for co-occurring conditions.

What is the main difference between a Psychiatrist like Gnam and a Psychologist?

The main difference is that a Psychiatrist, like Gnam, is a medical doctor (MD) who has completed medical school and then specialized residency training in psychiatry. Because they are physicians, psychiatrists can diagnose mental health conditions, prescribe and manage psychotropic medications, and provide various forms of psychotherapy. They can also order medical tests to rule out physical causes of psychiatric symptoms. A Psychologist typically has a doctoral degree (PhD or PsyD) in psychology and is trained in psychological assessment, diagnosis, and providing psychotherapy (talk therapy). Psychologists generally cannot prescribe medication in Canada, though they often work closely with psychiatrists or family doctors who do.

Toronto General Hospital
4711 Yonge St
North York, ON M2N 6K8

Phone: (416) 218-1176 | Fax: (289) 917-1213

The facility is wheelchair accessible and aims to provide a comfortable and private environment for all patients.

Dr. Gnam is a licensed Psychiatrist regulated by the College of Physicians and Surgeons of Ontario (CPSO) under the Regulated Health Professions Act, 1991 and Medicine Act, 1991 in ON. A referral from a family physician or another medical doctor is typically required for consultations with Dr. Gnam for services covered by the provincial health plan.

Verify registration with the College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Gnam-William-Henry/0046038-60016