Dr. Cathy Eileen Dai, a respected Internist / Geriatrician, focuses on evidence-based medicine and personalized care plans. Practicing in Markham, ON, she serves the surrounding communities with a commitment to high-quality, patient-centered care. She adheres strictly to the standards and ethical guidelines set by the College of Physicians and Surgeons of Ontario (CPSO). Dr. Dai provides comprehensive care in Internal Medicine and Geriatric Care, addressing the complex health needs of adult patients, including seniors.
Dr. Dai graduated with a Medical Degree from Queen's University in 2017 and has completed extensive post-graduate medical training in internal medicine and geriatrics. Her education and certifications enable her to deliver specialized, evidence-based management for a broad spectrum of adult health issues. She continually updates her knowledge to incorporate the latest advances in medical science, ensuring her patients receive current and effective treatments.
Her clinical philosophy emphasizes clear, educational communication and collaborative decision-making. Dr. Dai is dedicated to providing compassionate, respectful, and comprehensive care tailored to each individual's unique health circumstances. She speaks English fluently and is committed to serving the diverse community of Markham with professionalism and integrity.
Dr. Dai provides expert care for adults with a wide range of medical conditions, including:
Select Infectious & Inflammatory Conditions
- Fever of Unknown Origin (FUO) Workup: Systematic investigation to determine the cause of prolonged, unexplained fevers.
- Complex Infections Consultation: Providing diagnostic and management expertise for challenging infections, often in consultation with primary care.
- Evaluation of Inflammatory Markers: Investigating elevated inflammatory markers (like ESR or CRP) to identify potential underlying systemic conditions.
Endocrine & Metabolic Disorders
- Adrenal Gland Disorders: Diagnosis and management of conditions affecting the adrenal glands, such as adrenal insufficiency.
- Thyroid Disorders: Management of hypothyroidism, hyperthyroidism, thyroid nodules, and other thyroid conditions.
- Osteoporosis & Metabolic Bone Disease: Diagnosis, risk assessment, and treatment strategies for conditions affecting bone strength and metabolism.
Management of Chronic Diseases
- Dyslipidemia (High Cholesterol): Assessment and management of abnormal lipid levels through lifestyle advice and medication to reduce cardiovascular risk.
- Chronic Kidney Disease (CKD): Monitoring kidney function, managing complications (anemia, bone disease, electrolytes), and strategies to slow disease progression.
- Diabetes Mellitus (Type 1 & 2): Comprehensive management including glucose control strategies, complication prevention, and patient education.
Dr. Dai manages a wide range of complex adult and geriatric health conditions. This list highlights common areas of focus. If your condition is not listed, please note that internal medicine specialists address diverse and often multi-systemic diseases. Consultation is typically initiated via referral from your primary care physician.
- Assessment of Functional Decline: Investigating and managing sudden or gradual changes in an older adult's ability to perform daily activities.
- Management of Acute Medical Issues (Inpatient Focus): Diagnosis and treatment of serious acute illnesses requiring hospital admission (often a primary role in hospital settings).
- Non-Surgical Management of Cardiovascular Conditions: Medical management of conditions like stable coronary artery disease, heart failure, arrhythmias, and hypertension.
- Consultation for Undiagnosed Symptoms: Expert evaluation for patients experiencing persistent or puzzling symptoms that require specialized diagnostic investigation to determine the underlying cause.
- Comprehensive Diagnostic Assessment: In-depth evaluation for adults with complex, unclear, or multi-system medical conditions, involving detailed history, physical examination, and coordination of necessary investigations.
Note: This list represents some of the key services offered by Dr. Dai. As a specialist in Internal Medicine and Geriatric Care, she provides comprehensive diagnostic and management services. For specific inquiries about whether your condition falls within Dr. Dai's scope of practice, please discuss with your referring physician or contact the clinic.
All medical services are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO).
Dr. Dai's practice is located in the historic Markham Village, within the Old Markham Village neighbourhood of Markham. She practices at the Reddendale Family Health Centre, which is conveniently situated near CF Markville Mall and First Markham Place. The location is accessible via York Region Transit (YRT) and Viva bus services. The facility is wheelchair accessible. Parking is available at the facility.
- How is payment handled for appointments with Dr. Dai? Is it covered by Ontario Health Insurance Plan (OHIP)?
- In ON, medical consultations with specialists like Dr. Dai are typically covered by your provincial health insurance (Ontario Health Insurance Plan (OHIP)) when you present a valid health card and have the required referral. You generally do not pay directly for the consultation service itself. Some specific procedures, forms, or administrative tasks might not be covered by Ontario Health Insurance Plan (OHIP) and may incur a separate fee according to provincial guidelines. Please inquire if you have questions about uninsured services.
- Can I book an appointment directly or do I absolutely need a referral?
- A referral from your family physician or another medical specialist is required to see Dr. Dai. As experts in Internal Medicine and Geriatric Care, Internists and Geriatricians see patients based on specific medical questions posed by the referring doctor. This ensures continuity of care and that the consultation is appropriate for your needs. Please have your doctor forward the referral information.
- Does Dr. Cathy Eileen Dai discuss goals of care or advance care planning?
- Yes, discussing goals of care is an important part of patient-centered practice, especially in managing chronic illness or in geriatric care. Dr. Dai encourages conversations about patient values, preferences for future medical treatment, and advance care planning (including identifying a substitute decision-maker) to ensure care aligns with what matters most to the patient. She can provide information and facilitate these discussions.
Reddendale Family Health Centre
381 Church Street
Markham, ON L3P 7P3
Phone: (905) 472-7373
The facility is wheelchair accessible.
Dr. Dai is a licensed physician regulated by the College of Physicians and Surgeons of Ontario (CPSO) under the Medicine Act, 1991 in ON. Patients are typically seen by referral from their primary care physician.
Verify registration with the College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Dai-Cathy-Eileen/0318263-112200