Dr Daniel O'Brien

Dr Daniel O'Brien is a highly regarded Infectious Diseases Specialist based in Geelong, Australia. As a dedicated Consultant Physician, he provides comprehensive care for patients dealing with a wide range of complex infectious conditions. Dr O'Brien is committed to delivering evidence-based, compassionate medical care, helping patients navigate challenging diagnoses with clear guidance and reassuring support. His clinical work spans both public health initiatives and private consultations, reflecting his deep commitment to community well-being.

With a broad range of expertise, Dr O'Brien specialises in the diagnosis, management, and treatment of diverse infectious diseases. He has a particular clinical interest in mycobacterial infections, including tuberculosis, leprosy, and Buruli ulcer (also known as Bairnsdale ulcer), a condition on which he has conducted extensive research. Additionally, his areas of expertise encompass the management of HIV, viral hepatitis, travel medicine, and refugee and immigrant health. Dr O'Brien prioritises a patient-centred approach, ensuring that individuals receive personalised treatment plans tailored to their specific health needs.

Dr O'Brien completed his medical education at the University of Melbourne, obtaining his Bachelor of Medicine, Bachelor of Surgery in 1990. He subsequently undertook extensive residency and specialist training in infectious diseases medicine, completing this training in 1997 at major tertiary referral hospitals in Melbourne and Darwin. In 1999, he was admitted as a Fellow of the Royal Australasian College of Physicians. To further his academic and clinical expertise, Dr O'Brien also earned a Doctor of Medical Science and a Diploma of Anatomy. He actively contributes to clinical research and has served in prominent public health leadership roles, including as a Deputy Chief Health Officer.