Geoffrey B. Mccowage

Pediatric Oncologist

Male📍 Westmead

About of Geoffrey B. Mccowage

Geoffrey B. Mccowage is a Pediatric Oncologist based in Westmead, NSW, Australia. He looks after children and young people who have cancer, and he works closely with families while treatment plans are being put together. Being in Westmead means patients can access a specialist paediatric cancer service in one place.


His work focuses on childhood cancers that can be hard to diagnose and even harder to manage day to day. Many of the conditions he treats involve cancers of the blood and bone marrow, brain and spinal areas, and cancers that start in bones or soft tissues. At times, this care also includes helping with tissue diagnosis, such as tissue biopsy, when doctors need clearer information before treatment starts.


In practice, that means supporting families through a range of diagnoses, including types of leukaemia, brain tumours, and sarcomas that can affect the bone, soft tissue, or nearby areas. Some patients may have tumours in the posterior fossa region, while others may have brain stem or other brain tumour diagnoses. Over time, he also sees cases linked to specific tumour types such as gliomas and medulloblastoma.


He has experience managing children who need careful cancer treatment, with a big focus on safe, step-by-step care. Cancer care often comes with lots of appointments, tests, and tough conversations, so the goal is to keep things clear and calm as things move forward. At the same time, treatment can change as results come in, so ongoing review matters.


Geoffrey’s education is in paediatric oncology, which fits the work he does across childhood cancers. He also works as part of a wider paediatric oncology team, including settings where clinical trials may be considered when they are appropriate for a child’s situation.


If you’re looking for a paediatric oncologist in the Westmead area, Geoffrey B. Mccowage provides specialist cancer care for children and young people, including diagnosis support like tissue biopsy and treatment for a range of serious childhood conditions.

Services & Conditions Treated

Adult Soft Tissue SarcomaGliomaGliomatosis CerebriPosterior Fossa TumorAcute Lymphoblastic Leukemia (ALL)Bone TumorBrain Stem CancerBrain TumorDiffuse Midline Glioma H3 K27M-MutantEmbryonal Tumor with Multilayered RosettesEwing SarcomaFibrosarcomaGrass AllergyHeart TumorHepatoblastomaLeukemiaMedulloblastomaNeuroblastomaOsteosarcomaRhabdoid TumorRhabdomyosarcomaTissue Biopsy

Publications

1 total

Author Correction: The type II RAF inhibitor tovorafenib in relapsed/refractory pediatric low-grade glioma: the phase 2 FIREFLY-1 trial.

Nature medicine • April 16, 2025

Clinical Trials

1 total

A Phase 1/2, Open-Label, Safety, Tolerability, Pharmacokinetics, and Anti-Tumor Activity Study of Repotrectinib in Pediatric and Young Adult Subjects With Advanced or Metastatic Malignancies Harboring ALK, ROS1, NTRK1-3 Alterations

RecruitingPhase 1/Phase 2Oral Repotrectinib (TPX-0005)

Frequently Asked Questions

What services does Dr Geoffrey B. Mccowage offer?
Dr Geoffrey B. Mccowage treats a range of pediatric cancers and related conditions, including soft tissue and bone tumours, brain tumours, leukaemia and other childhood cancers, as well as tissue biopsy when needed.
Which conditions are commonly treated by this doctor?
Common conditions include acute lymphoblastic leukaemia (ALL), brain tumours, gliomas, diffuse midline glioma, medulloblastoma, neuroblastoma, osteosarcoma, Ewing sarcoma, rhabdoid and rhabdomyosarcoma, fibrosarcoma, and other paediatric cancers.
Where is Dr Mccowage’s clinic located?
The practice is in Westmead, New South Wales.
How can I arrange an appointment with Dr Mccowage?
To book, please contact the Westmead clinic. If you’re unsure what you need, the team can help identify the right appointment type based on your child’s situation.
What should I expect at a paediatric oncology appointment?
Appointments focus on evaluating and planning treatment for paediatric cancers, discussing options, and coordinating tests such as biopsies when needed. Family questions and concerns are welcome.
What kinds of tests or procedures are common?
Tests may include tissue biopsy and other investigations to help diagnose and guide treatment, as part of managing cancers like leukaemia, brain tumours, and sarcomas.
Are there specific languages or support available for families?
The information provided aims to be clear and supportive for families in Australia; if language or information needs are present, ask the clinic about available assistance.