Dr. Rachael Elizabeth Tweedle

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

Mood Disorders

• Seasonal Affective Disorder (SAD): A type of depression related to changes in seasons, most commonly beginning in the fall and continuing through the winter months.
• Bipolar Disorder (Type I, Type II, Cyclothymia): Characterized by extreme shifts in mood, energy, activity levels, and concentration, ranging from depressive lows to manic or hypomanic highs.
• Persistent Depressive Disorder (Dysthymia): A chronic form of depression with less severe but longer-lasting symptoms than major depression, present for at least two years.

Personality Disorders

• Obsessive-Compulsive Personality Disorder (OCPD): A preoccupation with orderliness, perfectionism, and mental and interpersonal control, at the expense of flexibility, openness, and efficiency (distinct from OCD).
• Antisocial Personality Disorder (ASPD): A pattern of disregarding or violating the rights of others, often involving deceitfulness, impulsivity, irritability, and lack of remorse.

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. Rachael Tweedle for an accurate diagnosis and tailored treatment plan.

• Treatment of Psychotic Disorders (Schizophrenia, Schizoaffective Disorder) with Antipsychotics: Management of schizophrenia spectrum and other psychotic disorders using first and second-generation antipsychotic medications, including long-acting injectables where appropriate.
• Neuropsychiatric Evaluation & Cognitive Assessment (Initial Screening/Referral): Initial assessment of cognitive function and neuropsychiatric symptoms, with referral for detailed neuropsychological testing if indicated, to differentiate psychiatric from neurological conditions.
• Couples & Family Therapy (psychiatric context): Providing therapy to couples or families to address relationship dynamics, communication problems, and the impact of mental illness on the family system.
• Second Opinion Consultations for Complex Psychiatric Cases: Providing expert second opinions on challenging diagnoses, treatment-resistant conditions, or complex psychopharmacological management plans.
• 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.
• Augmentation & Combination Strategies for Treatment-Resistant Conditions: Employing advanced psychopharmacological strategies, including combining medications or adding augmenting agents, for individuals who have not responded adequately to initial treatments.

Note: This list provides a general overview. Treatment approaches are highly individualized. Please discuss with Dr. Tweedle 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.

Mount Sinai Hospital in Hamilton's Hamilton Mountain West (Gourley, Rolston) neighborhood offers a discreet and welcoming environment for mental health care. The practice is situated within the hospital complex, with easy access from downtown Dundas and the Dundas Valley Conservation Area nearby. Public transit options are available via the Hamilton Street Railway (HSR), making it accessible for patients across the region. The facility is wheelchair accessible and aims to provide a comfortable and private environment for all patients. Parking is available at or near the facility, with designated accessible spots to accommodate patients with mobility needs. The practice's setting ensures a professional, confidential, and respectful atmosphere for mental health treatment.

Are psychiatric consultations and treatments with Tweedle, 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 Tweedle 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 Tweedle's office or Ontario Health Insurance Plan (OHIP).

Do I need a referral to see Tweedle, 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 Tweedle 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 is confidentiality handled in psychiatric care?

Confidentiality is a cornerstone of psychiatric care. Information you share with Dr. Tweedle and her team is kept private and protected by law and professional ethics. This means your information will not be disclosed to anyone without your explicit consent, except in very specific situations where there is a legal obligation or an immediate risk of serious harm to yourself or others (e.g., imminent risk of suicide or homicide, child abuse, or a court order). Dr. Tweedle will typically discuss the limits of confidentiality with you at the beginning of your treatment.

What does a Psychiatrist like Tweedle 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. She is a Psychiatrist who assesses, diagnoses, and treats mental, emotional, and behavioral disorders through medication, psychotherapy, or other interventions. Tweedle 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.

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

The main difference is that a Psychiatrist, like Tweedle, 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.

What if I experience side effects from medication prescribed by Tweedle?

It's common for psychotropic medications to have potential side effects, especially when starting a new medication or adjusting a dose. Tweedle will discuss common side effects to watch for. If you experience side effects, it's very important to communicate this to Tweedle or her office promptly. Do not stop taking your medication suddenly unless instructed to do so by Tweedle, as this can sometimes cause withdrawal symptoms or a worsening of your condition. Tweedle can help manage side effects by adjusting the dosage, switching to a different medication, or suggesting strategies to mitigate them.

Mount Sinai Hospital
4th Floor, Box 13, 100 West 5th Street, Temmy Latner Centre for Palliative
Hamilton, ON L9C 0E3

Phone: (905) 522-1155

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

Dr. Tweedle 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. Tweedle 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/Tweedle-Rachael-Elizabeth/0328139-118523