Dr. David Paul D’Souza – Oncologist / Hematologist | London, ON

Dr. David Paul D'Souza, a Radiation Oncologist, utilizes advanced radiation therapies to treat various forms of cancer, working as part of a multidisciplinary team. Practicing at North York General Hospital in London, ON, he is part of a dedicated healthcare team committed to providing compassionate, patient-centered care. His practice adheres to the high standards set by the College of Physicians and Surgeons of Ontario (CPSO), ensuring that every patient receives safe, effective, and evidence-based treatment. Dr. D'Souza's expertise includes the precise planning and delivery of radiation therapy for a variety of cancer types, aiming to maximize therapeutic benefit while minimizing side effects. He serves adult patients with suspected or diagnosed cancers and blood disorders, offering access to state-of-the-art diagnostic and therapeutic facilities to support comprehensive cancer care.

Dr. D'Souza graduated with a Medical Degree from the University of Toronto in 1995, and has been practicing as a Radiation Oncologist for over 29 years. He is certified as a RCPSC Specialist in Radiation Oncology, specializing in cancer treatment with radiation. His long-standing clinical experience underpins his commitment to delivering expert care tailored to each patient's unique needs.

He is dedicated to providing multidisciplinary, evidence-based treatment approaches, emphasizing patient and family support throughout the cancer journey. Dr. D'Souza is committed to advancing cancer research and clinical practice to improve outcomes. He speaks English fluently and strives to build trusting, compassionate relationships with his patients in London, ON.

Dr. David D'Souza has expertise in managing a wide range of conditions, including:

Hematologic Malignancies (Blood Cancers) Treated

• Non-Hodgkin Lymphoma (NHL) (e.g., Diffuse Large B-Cell, Follicular, Mantle Cell): A diverse group of blood cancers that develop from lymphocytes, with many different subtypes requiring tailored treatments.
• Myeloproliferative Neoplasms (MPN) (Polycythemia Vera, Essential Thrombocythemia, Myelofibrosis): A group of chronic blood cancers where the bone marrow produces too many red blood cells, white blood cells, or platelets.
• Myelodysplastic Syndromes (MDS): A group of diverse bone marrow disorders in which the bone marrow does not produce enough healthy, mature blood cells.

Common Cancers (Solid Tumors) Treated

• Sarcomas (Bone & Soft Tissue - Systemic Therapy): Rare cancers arising from connective tissues, where medical oncologists administer chemotherapy or targeted therapies for advanced or metastatic disease.
• Lung Cancer (Non-Small Cell & Small Cell): Cancers originating in the lungs, treated with chemotherapy, targeted therapy, immunotherapy, and/or radiation based on type and stage.
• Breast Cancer (Early Stage, Locally Advanced, Metastatic): Malignant tumors developing in the cells of the breast, managed with various therapies including hormonal, chemo, targeted agents, and immunotherapy.

Common Areas/Cancers Treated with Radiation Oncology

• Gastrointestinal Cancers (e.g., Rectal, Anal, Pancreatic, Stomach): Role of radiation therapy in managing various cancers of the digestive system, often as part of combined modality treatment.
• Thoracic Cancers (e.g., Lung Cancer, Esophageal Cancer, Mesothelioma): Using radiation therapy to treat cancers within the chest cavity, often combined with other modalities.
• Palliative Radiation for Symptom Relief (e.g., Bone Metastases, Spinal Cord Compression): Using radiation therapy to alleviate pain, control bleeding, or relieve pressure caused by advanced cancer.

This list provides examples of common conditions treated and is not exhaustive. Cancer and blood disorders are complex, and treatment is highly individualized. For personalized advice, please discuss your specific situation with Dr. David D'Souza or your referring physician.

• Genetic Counseling & Testing Referrals for Hereditary Cancer Syndromes: Assessment of family history and risk factors, and coordination of referrals for genetic counseling and testing for inherited predispositions to cancer (e.g., BRCA).
• Total Body Irradiation (TBI) - Component of Stem Cell Transplant Regimens: Radiation therapy delivered to the entire body, often used as part of the conditioning regimen before a bone marrow or stem cell transplant.
• Radiation Therapy Consultation & Treatment Planning: Comprehensive assessment to determine if radiation therapy is an appropriate treatment modality, followed by meticulous 3D/4D simulation and treatment planning.
• Second Opinion Consultations for Cancer & Blood Disorders: Providing expert second opinions on complex diagnoses and proposed treatment plans to ensure informed decision-making.
• Prophylactic Cranial Irradiation (PCI): Preventative radiation treatment to the brain for certain cancers at high risk of brain metastases.
• Image-Guided Radiation Therapy (IGRT): Utilizing advanced imaging during treatment delivery to precisely target tumors and adapt to changes, while minimizing exposure to healthy tissues.
• Brachytherapy (Internal Radiation - LDR/HDR) for Specific Cancers: Planning and performing procedures where radioactive sources are placed directly into or near a tumor (e.g., for prostate, cervical, breast cancer).

Note: This list provides a general overview of services offered in Radiation Oncology (Cancer Treatment with Radiation). Treatment plans are highly individualized. Dr. D'Souza provides a wide array of diagnostic, therapeutic, and supportive care options tailored to each patient's specific condition and needs. Please discuss with Dr. D'Souza or your healthcare team for details relevant to your care.

All medical services and treatments are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO) and relevant cancer care guidelines. A referral is required.

North York General Hospital is situated in the Downtown London, North London East neighborhood of London, ON. The practice is conveniently accessible from the nearby landmarks such as the Grand Theatre and Western University, which are within walking distance. Public transit options are readily available, with the London Transit Commission (LTC) providing bus services to the area. The facility is wheelchair accessible, ensuring ease of access for all patients. Metered street parking is available nearby, offering convenient parking options for visitors. The location provides a welcoming environment with easy access to advanced diagnostic and treatment facilities essential for comprehensive cancer care.

Are consultations and treatments with Dr. D'Souza, an Radiation Oncologist, covered by Ontario Health Insurance Plan (OHIP) in ON?

Medically necessary consultations, diagnostic tests (like biopsies, imaging reviews), chemotherapy, immunotherapy, targeted therapies, radiation therapy planning and delivery, and management of blood disorders by a licensed Radiation Oncologist such as Dr. D'Souza are generally covered by Ontario Health Insurance Plan (OHIP) in ON when a referral from a family doctor or another specialist is in place. Specific drug coverage for newer therapies can vary by provincial formularies and may require special authorization. It's always recommended to discuss coverage specifics with Ontario Health Insurance Plan (OHIP), Dr. D'Souza's office, the hospital's patient financial services, or the cancer care navigation services at the treatment facility.

Do I need a referral to see Dr. D'Souza, an Radiation Oncologist?

Yes, a referral from your family physician or another specialist is almost always required to see an Radiation Oncologist like Dr. D'Souza for assessment or treatment of cancer or significant hematological conditions. This ensures that your primary care provider is involved in your care continuum and that you are directed to the most appropriate specialist for your specific situation. Cancer care programs often have centralized intake systems that manage referrals to ensure timely access.

How does cancer or blood disorder treatment differ for children compared to adults?

Treatment for children with cancer or blood disorders is highly specialized and managed by Pediatric Hematologists/Oncologists. They use protocols tailored to children, considering long-term effects on growth and development. Children's bodies react differently to treatments, and the types of cancers and blood disorders are often distinct from adult conditions. Care is family-centered, involving parents and caregivers closely in decision-making and support.

Does Dr. D'Souza participate in or offer access to clinical trials?

You can ask Dr. D'Souza if there are any suitable clinical trials available for your condition, either at Dr. D'Souza's institution or through collaborative research networks. He can provide information or refer you for consideration.

How will treatment decisions be made for my condition by Dr. D'Souza?

Treatment decisions in oncology and hematology are highly personalized and made collaboratively. Dr. D'Souza will consider many factors, including the type and stage of your cancer or blood disorder, your overall health, genetic markers of the disease (if applicable), current treatment guidelines, and importantly, your personal preferences and values. Often, cases are discussed in multidisciplinary team meetings (tumor boards) with other specialists to ensure a comprehensive approach. You will be an active participant in this decision-making process.

North York General Hospital
3rd Floor, South East Wing, 800 Commissioners Rd E, Genetics Programme
London, ON N6A 5W9

Phone: (519) 685-8600 | Fax: (519) 685-8736

The facility is wheelchair accessible.

Dr. D'Souza is a licensed Radiation Oncologist regulated by the College of Physicians and Surgeons of Ontario (CPSO) under the Regulated Health Professions Act, 1991 and Medicine Act, 1991 in ON. A referral from a family physician or other specialist is required for most consultations and treatments under the provincial health plan.

Verify registration with the College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/DSouza-David-Paul/0057527-69115