About
Dr. Andrew Walter Duncan is a dedicated Internist / Geriatrician committed to providing comprehensive medical care for adults, with a focus on complex conditions and geriatric health. Practicing in Toronto, ON, he serves the surrounding communities, offering specialized internal medicine and geriatric services. Dr. Duncan adheres to the high standards set by the College of Physicians and Surgeons of Ontario (CPSO), ensuring that his practice maintains the utmost professionalism, safety, and quality of care. His role involves managing complex health issues in adult and senior populations, emphasizing a holistic approach to patient well-being.
He graduated with a Medical Degree from the Royal College of Surgeons in Ireland School of Medicine in 2010. His postgraduate training included extensive residency and fellowship programs in internal medicine and geriatrics, equipping him with a broad skill set to address a wide spectrum of adult health conditions. Dr. Duncan has also completed relevant certifications and continually updates his knowledge to incorporate the latest evidence-based practices into his clinical care.
With a professional and clinical approach, Dr. Duncan is committed to serving the Toronto community. He communicates fluently in English and prioritizes patient-centered care, emphasizing clear communication and evidence-based decision-making. His philosophy revolves around comprehensive, respectful, and individualized treatment, aiming to improve quality of life and health outcomes for his patients.
Dr. Duncan provides expert care for adults with a wide range of medical conditions, including:
Select Infectious & Inflammatory Conditions
- Evaluation of Inflammatory Markers: Investigating elevated inflammatory markers (like ESR or CRP) to identify potential underlying systemic 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.
Endocrine & Metabolic Disorders
- Osteoporosis & Metabolic Bone Disease: Diagnosis, risk assessment, and treatment strategies for conditions affecting bone strength and metabolism.
- Thyroid Disorders: Management of hypothyroidism, hyperthyroidism, thyroid nodules, and other thyroid conditions.
- Calcium and Parathyroid Disorders: Evaluation and management of conditions related to abnormal calcium levels and parathyroid gland function.
Management of Chronic Diseases
- Chronic Kidney Disease (CKD): Monitoring kidney function, managing complications (anemia, bone disease, electrolytes), and strategies to slow disease progression.
- Cardiovascular Conditions: Medical management of heart failure, coronary artery disease (stable), arrhythmias (like atrial fibrillation), and valvular heart disease.
- Chronic Liver Disease: Diagnosis and management of various liver conditions such as fatty liver disease, chronic hepatitis, and cirrhosis complications.
Dr. Duncan 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.
- Coordination of Specialist Care: Acting as a central point of contact to help manage and coordinate input from various medical specialists for patients with multi-system diseases.
- Thyroid Disorder Management: Diagnosis and ongoing management of conditions like hypothyroidism, hyperthyroidism, and thyroid nodules.
- Consultation for Undiagnosed Symptoms: Expert evaluation for patients experiencing persistent or puzzling symptoms that require specialized diagnostic investigation to determine the underlying cause.
- Medication Review and Optimization (Deprescribing): Systematic review of all medications (polypharmacy) to ensure appropriateness, minimize side effects and interactions, and deprescribe unnecessary drugs.
- Osteoporosis and Bone Health Management: Screening, diagnosis, and treatment of osteoporosis to prevent fractures in older adults.
Note: This list represents some of the key services offered by Dr. Duncan. As a specialist in Internal Medicine and Geriatric Care, he provides comprehensive diagnostic and management services. For specific inquiries about whether your condition falls within Dr. Duncan'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. Duncan's practice is located in the Downsview Central neighbourhood of Toronto, within Hanover Medical Associates. The location is conveniently situated near landmarks such as Lee's Palace and Hot Docs Ted Rogers Cinema. Patients can access the clinic easily via TTC, including subway, streetcar, and bus routes. The facility is wheelchair accessible. Parking is available at the facility.
- How is payment handled for appointments with Dr. Duncan? Is it covered by Ontario Health Insurance Plan (OHIP)?
- In ON, medical consultations with specialists like Dr. Duncan 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. Duncan. 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.
- What exactly does an Internist (Internal Medicine Specialist) do?
- An Internist is a medical doctor who specializes in diagnosing, treating, and preventing complex diseases primarily in adults. They are experts in managing conditions affecting multiple organ systems (Nutritional Assessment & Weight Loss, Cardiovascular Conditions), handling challenging diagnostic puzzles, and coordinating care for patients with multiple chronic illnesses. They often serve as consultants to other physicians.
Hanover Medical Associates
1235 Wilson Avenue
Toronto, ON M3M 0B2
Phone: (416) 242-1000
The facility is wheelchair accessible.
Dr. Duncan 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/Duncan-Andrew-Walter/0265679-93468