Dr. Audrey Merika Wei-Ying Li – Oncologist / Hematologist | Oshawa, ON

Dr. Audrey Merika Wei-Ying Li, a Radiation Oncologist, utilizes advanced radiation therapies to treat various forms of cancer, working as part of a multidisciplinary team. Practicing at Humber River Hospital in Oshawa, ON, she is part of a dedicated healthcare team committed to providing comprehensive cancer care. Her practice adheres to the standards and ethical guidelines set by the College of Physicians and Surgeons of Ontario (CPSO). Dr. Li's expertise includes the precise planning and delivery of radiation therapy for a variety of cancer types, ensuring that each patient receives tailored and effective treatment. She primarily serves adult patients with suspected or diagnosed cancer or blood disorders, offering access to state-of-the-art diagnostic and therapeutic facilities to support optimal outcomes.

Dr. Li graduated with a Medical Degree from McMaster University in 2003 in Canada. She has been practicing as a Radiation Oncologist for over 15 years, since 2009, gaining extensive experience in the field of cancer treatment with radiation. She is certified as a RCPSC Specialist in Radiation Oncology, reflecting her specialized training and commitment to maintaining high standards of care and professional development.

Her clinical philosophy centers on multidisciplinary collaboration, evidence-based treatment, and compassionate patient and family support. Dr. Li is dedicated to advancing cancer care through continual learning and research, striving to incorporate the latest advancements in radiation oncology. She is fluent in English and is committed to providing accessible, patient-centered care to the Oshawa community, ensuring that each individual feels informed and supported throughout their treatment journey.

Dr. Audrey Li has expertise in managing a wide range of conditions, including:

Hematologic Malignancies (Blood Cancers) Treated

• Waldenström's Macroglobulinemia: A rare type of non-Hodgkin lymphoma characterized by an overproduction of a protein called macroglobulin.
• 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.
• Acute Myeloid Leukemia (AML): A rapidly progressing cancer of the blood and bone marrow affecting myeloid cells.

Common Areas/Cancers Treated with Radiation Oncology

• Genitourinary Cancers (e.g., Prostate, Bladder, Testicular): Using radiation therapy, including brachytherapy for prostate cancer, to treat cancers of the male and female urinary and reproductive systems.
• Central Nervous System (CNS) Tumors (Brain & Spine): Employing precise radiation techniques to treat benign and malignant tumors of the brain and spinal cord.
• 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.

Common Cancers (Solid Tumors) Treated

• Neuroendocrine Tumors (NETs): A diverse group of tumors that arise from cells of the endocrine (hormonal) and nervous systems, treated with various systemic therapies.
• Ovarian, Uterine (Endometrial), & Cervical Cancers (Gynecologic Oncology - Medical Aspects): Systemic treatment aspects for cancers of the female reproductive system, often in collaboration with gynecologic oncologists or surgeons.
• Melanoma & Advanced Skin Cancers: Aggressive forms of skin cancer, where oncologists manage systemic treatments like immunotherapy or targeted therapy for advanced or metastatic disease.

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. Audrey Li or your referring physician.

• 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).
• Palliative Radiation Therapy for Symptom Control: Using radiation to alleviate pain, bleeding, or obstruction caused by cancer.
• 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.
• Stereotactic Body Radiotherapy (SBRT) / Stereotactic Ablative Radiotherapy (SABR) / Stereotactic Radiosurgery (SRS): Delivering highly focused, high-dose radiation to precisely targeted tumors or lesions in the brain or body, often in a few treatment sessions.
• Prophylactic Cranial Irradiation (PCI): Preventative radiation treatment to the brain for certain cancers at high risk of brain metastases.
• Second Opinion Consultations for Cancer & Blood Disorders: Providing expert second opinions on complex diagnoses and proposed treatment plans to ensure informed decision-making.
• Performance Status Assessment & Treatment Eligibility Evaluation: Evaluating a patient's overall fitness and ability to tolerate specific anti-cancer treatments.

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

Dr. Li practices primarily at Humber River Hospital, situated in the Vanier and McLaughlin West neighborhood of Oshawa. The hospital is conveniently located near the Regent Theatre and is easily accessible via public transit, including Durham Region Transit (DRT). The facility is wheelchair accessible, ensuring ease of access for all patients. Metered street parking is available nearby for those arriving by car. The hospital's strategic location and accessible amenities support a seamless experience for patients seeking expert radiation oncology care in the Oshawa area.

Are consultations and treatments with Dr. Li, 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. Li 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. Li'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. Li, an Radiation Oncologist?

Yes, a referral from your family physician or another specialist is almost always required to see an Radiation Oncologist like Dr. Li 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.

How is cancer care typically coordinated when seeing Dr. Li?

Cancer care and complex hematology care often involve a multidisciplinary team (MDT) of specialists working together. This team may include medical oncologists like Dr. Li, surgeons, radiation oncologists, pathologists, radiologists, specialized oncology nurses, pharmacists, social workers, dietitians, genetic counselors, and palliative care specialists. Regular team meetings (often called tumor boards or MDT meetings) usually occur to discuss individual patient cases and develop comprehensive, coordinated treatment plans. Dr. Li works collaboratively within this team to ensure you receive holistic and well-managed care.

Humber River Hospital
1 Hospital Court, Department of Emergency Medicine
Oshawa, ON L1G 2B9

Phone: (905) 576-8711 | Fax: (905) 721-6101

The facility is wheelchair accessible.

Dr. Li 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/Li-Audrey-Merika-WeiYing/0200799-79029