About
Dr. Catherine Eva Krasnik 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 Cambridge Memorial Hospital in St. Catharines, ON, she is a key member of the local mental healthcare community. She 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. Her practice is guided by the standards and ethical principles established by the College of Physicians and Surgeons of Ontario (CPSO). Dr. Krasnik is committed to delivering confidential, respectful, and individualized mental health care, fostering a safe space for her patients to explore their concerns and work towards recovery and well-being.
She earned her Medical Degree from McMaster University in Canada and has over 13 years of experience practicing as a Psychiatrist since 2011. She is recognized as a RCPSC Specialist by the College of Physicians and Surgeons of Ontario (CPSO). Her extensive training and ongoing professional development ensure that her clinical practice aligns with the latest evidence-based approaches in mental health care and psychiatric treatment.
Dr. Krasnik’s clinical philosophy emphasizes collaborative care, patient empowerment through education and understanding, and fostering a therapeutic alliance built on trust and respect. She is dedicated to providing high-quality care tailored to each patient’s unique needs. In addition to English, she speaks Croatian and French, which enhances her ability to communicate effectively with a diverse patient population in St. Catharines and the surrounding community.

Dr. Catherine Krasnik provides assessment and treatment for a wide spectrum of mental health conditions, including:
Anxiety, OCD & Trauma-Related Disorders
- Generalized Anxiety Disorder (GAD): Excessive, persistent worry and anxiety about various everyday life events or activities, often difficult to control.
- Social Anxiety Disorder (Social Phobia): Intense fear or anxiety of social situations where one might be scrutinized by others, leading to avoidance.
- Agoraphobia: Fear and avoidance of situations where escape might be difficult or help unavailable if panic-like symptoms occur, such as public transportation, open spaces, or crowds.
Personality Disorders
- Antisocial Personality Disorder (ASPD): A pattern of disregarding or violating the rights of others, often involving deceitfulness, impulsivity, irritability, and lack of remorse.
- Avoidant Personality Disorder: Characterized by social inhibition, feelings of inadequacy, and hypersensitivity to negative evaluation.
- 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).
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.
- 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.
This list is not exhaustive. Effective mental health care is highly personalized. Please consult with Dr. Catherine Krasnik for an accurate diagnosis and tailored treatment plan.
- 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.
- 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.
- Group Therapy (various focuses, e.g., mood disorders, anxiety, trauma, DBT skills): Facilitating therapeutic groups where individuals with similar concerns can share experiences, learn coping strategies, and receive mutual support under the guidance of a therapist.
- Comprehensive Psychiatric Assessment & Diagnostic Evaluation: In-depth clinical interview to assess mental health status, including review of psychiatric and medical history, family history, psychosocial factors, symptom patterns, and formulation of a multiaxial diagnosis according to DSM/ICD criteria.
- Management of Sleep Disorders (Insomnia, Parasomnias - psychiatric aspects): Pharmacological and behavioral approaches to treating sleep difficulties that are secondary to or co-occurring with psychiatric conditions.
- 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.
Note: This list provides a general overview. Treatment approaches are highly individualized. Please discuss with Dr. Krasnik 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.
Cambridge Memorial Hospital, located in the areas near central St. Catharines, ON, offers convenient access for patients seeking mental health services. The hospital is situated close to local points of interest and is well-served by local public transit, making it accessible for a wide community. The facility is wheelchair accessible and aims to provide a comfortable and private environment for all patients. Parking is available at or near the hospital, with designated accessible spots to accommodate patients with mobility needs. The practice's setting fosters a discreet, welcoming atmosphere, ensuring that patients feel safe and respected during their visits. As part of a larger healthcare facility, Dr. Krasnik's psychiatric services are integrated within an established hospital environment that prioritizes patient safety and confidentiality.
- Are psychiatric consultations and treatments with Krasnik, 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 Krasnik 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 Krasnik's office or Ontario Health Insurance Plan (OHIP).
- Do I need a referral to see Krasnik, 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 Krasnik 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. Krasnik 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. Krasnik will typically discuss the limits of confidentiality with you at the beginning of your treatment.
- When should someone consider a referral to a Psychiatrist like Krasnik?
- A referral to a Psychiatrist like Dr. Krasnik 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 does a Psychiatrist like Krasnik 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. Krasnik 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 if I experience side effects from medication prescribed by Krasnik?
- It's common for psychotropic medications to have potential side effects, especially when starting a new medication or adjusting a dose. Krasnik will discuss common side effects to watch for. If you experience side effects, it's very important to communicate this to Krasnik or her office promptly. Do not stop taking your medication suddenly unless instructed to do so by Krasnik, as this can sometimes cause withdrawal symptoms or a worsening of your condition. Krasnik can help manage side effects by adjusting the dosage, switching to a different medication, or suggesting strategies to mitigate them.
- What is the main difference between a Psychiatrist like Krasnik and a Psychologist?
- The main difference is that a Psychiatrist, like Krasnik, 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.
Cambridge Memorial Hospital
1200 Fourth Avenue
St Catharines, ON L2S 0A9
Phone: (905) 378-4647
The facility is wheelchair accessible and aims to provide a comfortable and private environment for all patients.
Dr. Krasnik 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. Krasnik 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/Krasnik-Catherine-Eva/0232711-85546