Osmaan was born and raised in Ottawa. He received his undergraduate degree at the University of Toronto in Neuroscience and went on to do his medical school at the University of Ottawa. He moved to Victoria for his 2-year residency program in Family Medicine. Since completing his residency, he has accumulated a vast breadth of experience. He has worked in sexual health, occupational health (with the Canadian Forces), sports medicine clinics, addictions, in-hospital care, and in-clinic care. Currently, in addition to his practice at Shoreline, he works at Saanich Peninsula Hospital in the emergency room and in-patient ward, and is a provider of Medical Assistance in Dying (MAiD). Finally, he holds leadership positions with Doctors of BC and the Victoria Division of Family Practice.