Dr. David Thomas Crisp – Internist / Geriatrician | Oshawa, ON

With extensive experience in Internal Medicine and Geriatric Care, Dr. Crisp serves as a trusted medical specialist. Practicing in Oshawa, ON, he provides comprehensive care in Internal Medicine and Geriatric Care to adult patients, including seniors. His practice is committed to delivering high-quality healthcare aligned with the standards set by the College of Physicians and Surgeons of Ontario (CPSO).

Dr. Crisp graduated with a Medical Degree from the University of Toronto in 1978. He has completed extensive post-graduate medical training, including specialized residencies and fellowships in Internal Medicine and Geriatrics, ensuring a broad and deep expertise in managing complex adult health issues.

His clinical philosophy emphasizes clear, educational communication and patient-centered care. Dr. Crisp is dedicated to serving the Oshawa community, speaking English fluently, and ensuring that each patient receives personalized, comprehensive medical attention that promotes health, independence, and quality of life.

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

Management of Chronic Diseases

• Diabetes Mellitus (Type 1 & 2): Comprehensive management including glucose control strategies, complication prevention, and patient education.
• Chronic Respiratory Diseases: Care for conditions like COPD, asthma, and interstitial lung disease, focusing on optimizing lung function and managing symptoms.
• Chronic Liver Disease: Diagnosis and management of various liver conditions such as fatty liver disease, chronic hepatitis, and cirrhosis complications.

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.
• Evaluation of Inflammatory Markers: Investigating elevated inflammatory markers (like ESR or CRP) to identify potential underlying systemic conditions.

Geriatric Syndromes & Focused Elder Care

• Polypharmacy & Medication Optimization: Expert review of multiple medications to reduce adverse effects, eliminate unnecessary drugs (deprescribing), and simplify regimens.
• 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.

Dr. Crisp 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.

• Second Opinion Consultations: Providing an independent expert review and opinion on complex diagnoses or treatment plans.
• Management of Complex Chronic Diseases: Ongoing care and treatment optimization for adults managing multiple chronic conditions such as diabetes, heart disease, kidney disease, hypertension, and respiratory illnesses.
• Osteoporosis and Bone Health Management: Screening, diagnosis, and treatment of osteoporosis to prevent fractures in older adults.
• Frailty Evaluation and Management: Assessing for frailty (increased vulnerability) and developing interventions to enhance resilience, function, and independence.
• Management of Geriatric Syndromes: Specialized care for common age-related conditions including falls, frailty, cognitive impairment (dementia, delirium), polypharmacy, urinary incontinence, and malnutrition.

Note: This list represents some of the key services offered by Dr. Crisp. 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. Crisp'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. Crisp's practice is located in the Lakeview area of the Farewell neighborhood in Oshawa, ON. The clinic is situated within the Sunnybrook Health Sciences Centre, providing a cohesive environment for comprehensive health services. It is conveniently accessible near Ontario Tech University and Durham College, making it an ideal location for patients in the surrounding communities. The practice is well-connected via Durham Region Transit (DRT), ensuring easy public transportation access. The facility is wheelchair accessible. Parking is available at the facility.

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

In ON, medical consultations with specialists like Dr. Crisp 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. Crisp. 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 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. Crisp uses this holistic approach to develop a personalized care plan. This assessment helps identify issues early and tailor interventions to improve overall health and independence.

Sunnybrook Health Sciences Centre
Room F307, 117 King Street East
Oshawa, ON L1H 1B9

Phone: (905) 723-8551 | Fax: (905) 721-3585

The facility is wheelchair accessible.

Dr. Crisp 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/Crisp-David-Thomas/0036327-50303