Dr. Guy William St. Maur Thompson – Internist / Geriatrician | London, ON

As a skilled Internist / Geriatrician, Dr. Guy William St. Maur Thompson offers expert diagnostic services and management for a wide range of adult health issues. Practicing in London, ON, he serves the surrounding communities with a warm and community-focused approach. Dr. Thompson is committed to providing comprehensive care in Internal Medicine and Geriatric Care, ensuring his patients receive personalized attention rooted in compassion and clinical excellence. His practice adheres to the high standards set by the College of Physicians and Surgeons of Ontario (CPSO), emphasizing patient safety and quality care.

Dr. Thompson graduated with a Medical Degree from Schulich School of Medicine and Dentistry in 1985, Canada. He has completed extensive post-graduate medical training, including residencies and fellowships in Internal Medicine and Geriatrics. His ongoing professional development ensures he remains current with the latest advancements in adult and senior healthcare, allowing him to deliver the most effective and evidence-based treatments.

With a warm, community-oriented philosophy, Dr. Thompson strives to build trusting relationships with his patients and their families. He speaks English fluently and values clear, empathetic communication. His dedication to serving the London community reflects his genuine commitment to improving the health and well-being of his patients, especially older adults and seniors navigating complex health challenges.

Dr. Thompson provides expert care for adults with a wide range of medical conditions, including:

Management of Chronic Diseases

• Hypertension (High Blood Pressure): Diagnosis, treatment titration, and long-term management of primary and secondary hypertension to mitigate cardiovascular risk.
• Dyslipidemia (High Cholesterol): Assessment and management of abnormal lipid levels through lifestyle advice and medication to reduce cardiovascular risk.
• Chronic Liver Disease: Diagnosis and management of various liver conditions such as fatty liver disease, chronic hepatitis, and cirrhosis complications.

Geriatric Syndromes & Focused Elder Care

• Urinary Incontinence Assessment: Evaluation and management of bladder control issues common in older adults.
• Falls, Mobility & Balance Disorders: Multifactorial assessment to identify causes of falls and gait instability; implementation of prevention strategies.
• Cognitive Impairment & Dementia Syndromes: Comprehensive assessment for memory loss/cognitive changes; diagnosis and management of Alzheimer's disease, vascular dementia, and others.

Select Infectious & Inflammatory Conditions

• Fever of Unknown Origin (FUO) Workup: Systematic investigation to determine the cause of prolonged, unexplained fevers.
• Management of Select Rheumatologic Conditions: Care for common inflammatory conditions such as gout or polymyalgia rheumatica, or initial assessment for suspected autoimmune diseases.
• Complex Infections Consultation: Providing diagnostic and management expertise for challenging infections, often in consultation with primary care.

Dr. Thompson 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.

• Thyroid Disorder Management: Diagnosis and ongoing management of conditions like hypothyroidism, hyperthyroidism, and thyroid nodules.
• Cognitive and Memory Assessment: Detailed evaluation for concerns about memory loss or changes in thinking; diagnosis and management of dementia and mild cognitive impairment.
• Osteoporosis and Bone Health Management: Screening, diagnosis, and treatment of osteoporosis to prevent fractures in older adults.
• Perioperative Medical Consultation: Assessing and managing medical risks (e.g., cardiac, respiratory) for patients undergoing surgery to ensure safety and optimize post-operative recovery.
• Internal Medicine Consultation for Primary Care: Providing specialist opinion and management recommendations to family physicians for complex adult patient cases.

Note: This list represents some of the key services offered by Dr. Thompson. 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. Thompson's scope of practice, please discuss with your referring physician.

All medical services are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO).

Dr. Thompson's practice is located in the Woodfield area within the vibrant Wortley Village neighborhood of London. His clinic is situated within the North Bay Regional Health Center, offering easy access to residents of London and surrounding communities. The location is conveniently close to Parkwood Institute and Victoria Hospital (LHSC), making it ideal for patients requiring multidisciplinary care. Accessible via the London Transit Commission (LTC), the clinic is committed to providing accessible healthcare services. The facility is wheelchair accessible. Parking is available at the facility.

How is payment handled for appointments with Dr. Thompson? Is it covered by Ontario Health Insurance Plan (OHIP)?

In ON, medical consultations with specialists like Dr. Thompson 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. Thompson. 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 (Evaluation of Undifferentiated Symptoms, Nutritional Assessment & Weight Loss), handling challenging diagnostic puzzles, and coordinating care for patients with multiple chronic illnesses. They often serve as consultants to other physicians.

Will Dr. Guy William St. Maur Thompson replace my family doctor?

No, Dr. Thompson acts as a specialist consultant. Your family doctor (or primary care provider) remains responsible for your routine healthcare, ongoing prescriptions (unless specified otherwise by the specialist), and coordinating your overall care. Dr. Thompson will communicate findings and recommendations back to your family doctor.

What is involved in a Comprehensive Geriatric Assessment (CGA)?

A CGA is a detailed evaluation specifically designed for older adults. It goes beyond standard medical checks to assess multiple domains including: medical conditions, medication review (polypharmacy), functional status (ability to perform daily tasks), mobility and fall risk, cognitive health (memory and thinking), mood (screening for depression/anxiety), nutrition, and social support systems. Dr. Thompson uses this holistic approach to develop a personalized care plan.

How does Dr. Guy William St. Maur Thompson communicate with my family doctor?

Clear communication with your referring physician is a priority. Dr. Thompson will send a comprehensive consultation letter outlining the assessment findings, diagnosis (if established), and treatment recommendations. This ensures your family doctor is fully informed and can continue to coordinate your overall care effectively.

North Bay Regional Health Center
310 Wellington Road
London, ON N6C 4P4

Phone: (519) 432-9468 | Fax: (519) 432-6266

The facility is wheelchair accessible.

Dr. Thompson 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/Thompson-Guy-William-St-Maur/0041567-55543