About
With expertise in Diagnostic and Interventional Radiology, Dr. James David Walker provides crucial diagnostic insights to referring physicians. Practicing at medical facilities in Toronto, ON, he supports various clinical departments by offering comprehensive imaging evaluations with a strong emphasis on patient safety and accuracy. Dr. Walker's services are delivered in accordance with the standards set by the College of Physicians and Surgeons of Ontario (CPSO), ensuring high-quality care for patients requiring diagnostic imaging or image-guided procedures.
He graduated with a Medical Degree from the University of Cambridge School of Clinical Medicine in 1985 in the United Kingdom. Having practiced as a Radiologist for over 32 years since 1992, Dr. Walker is certified as a Royal College of Physicians and Surgeons of Canada (RCPSC) Specialist. His extensive training and certification underscore his commitment to maintaining the highest standards of diagnostic excellence and patient safety.
Dr. Walker's clinical philosophy centers on a patient-safety focused approach, striving for diagnostic accuracy and minimally invasive care in Toronto. He communicates fluently in English and is dedicated to providing clear, reliable imaging interpretations to support optimal patient outcomes.
- Magnetic Resonance Imaging (MRI) Interpretation: Specialized analysis and reporting of MRI scans, providing detailed images of soft tissues, brain, spine, joints, abdomen, and pelvis without using ionizing radiation.
- Computed Tomography (CT) Scan Interpretation: Detailed review and reporting of cross-sectional CT images for evaluating trauma, cancer staging, vascular disease, infections, and other complex conditions throughout the body.
- X-ray Interpretation (Radiography): Expert analysis and reporting of X-ray images for diagnosing conditions related to bones (fractures, arthritis), chest (pneumonia, lung nodules), and abdomen.
- Mammography and Breast Imaging Interpretation: Expert review and reporting of mammograms (including tomosynthesis/3D mammography) and breast ultrasound for cancer screening, diagnosis, and follow-up.
- Fluoroscopy Procedure Interpretation: Interpreting real-time X-ray imaging (fluoroscopy) used during procedures like barium studies (GI tract), hysterosalpingograms, or to guide certain injections.
Note: This list provides an overview of common radiology services. Dr. Walker interprets a wide range of medical imaging studies and/or performs procedures as indicated by your referring physician. Specific subspecialty services depend on the physician's focus and training.
All medical imaging services are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO).
Dr. Walker's practice is primarily based at C/O COSTI in the Caledonia-Fairbank neighborhood of Toronto. The location is conveniently situated near the MaRS Discovery District, making it accessible for patients in the downtown Toronto area. Patients can reach the facility via TTC subway, streetcar, or bus routes. The facility is wheelchair accessible. Parking is available at the facility.
- Are imaging studies interpreted by Dr. Walker covered by Ontario Health Insurance Plan (OHIP) in ON?
- Medically necessary diagnostic imaging studies interpreted by a Radiologist like Dr. Walker are typically covered by Ontario Health Insurance Plan (OHIP) in ON when prescribed by your referring physician and performed at an accredited medical facility. Some advanced or specialized interventional procedures may also be covered. It's always best to confirm specific coverage details with Ontario Health Insurance Plan (OHIP) or the imaging clinic/hospital.
- Do I need a referral from my doctor to have an imaging study interpreted by Dr. Walker?
- Yes, almost all diagnostic imaging tests (like X-rays, CT, MRI, ultrasounds) and interventional radiology procedures require a formal request or requisition from your family doctor, specialist, or other authorized healthcare provider. Dr. Walker provides expert interpretation of these physician-ordered studies.
- I'm concerned about radiation exposure. Are X-rays and CT scans safe?
- Patient safety is our top priority. Radiologists and technologists are trained to use the lowest radiation dose necessary to obtain high-quality diagnostic images (this is known as the ALARA principle - As Low As Reasonably Achievable). While X-rays and CT scans do use ionizing radiation, the amount for most diagnostic exams is carefully controlled and the benefit of an accurate diagnosis generally far outweighs the very small potential risk. If you have specific concerns, please discuss them with your referring doctor or the imaging staff before your exam.
- What is Interventional Radiology?
- Interventional Radiology is a subspecialty of radiology where physicians use medical imaging (like X-ray, CT, ultrasound, MRI) to guide minimally invasive procedures for diagnosis (e.g., biopsies) or treatment of a wide range of conditions in nearly every organ system. These procedures are often alternatives to open surgery. Dr. Walker specializes in these image-guided procedures.
C/O COSTI
Suite 105, 2010 Eglinton Ave. W.
Toronto, ON M6E 2K3
Phone: (416) 781-2050
The facility is wheelchair accessible.
Dr. Walker is a licensed physician regulated by the College of Physicians and Surgeons of Ontario (CPSO) under the Medicine Act, 1991 in ON. Imaging services are typically provided based on referrals from other physicians.
Verify registration with the College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Walker-James-David/0043421-57399