How do I read a doctor's bio? What do the credentials actually mean?

Read for the licence jurisdiction and register number first, then for specialty credentials, then for role. In Canada, physicians are licensed by the provincial or territorial college of physicians and surgeons, or CMQ in Quebec, which you can check on public registers such as the CPSO doctor search in Ontario or the CPSBC directory in British Columbia. FRCPC is fellowship of the Royal College of Physicians of Canada, a specialist certification separate from the licence. References: https://www.cpso.on.ca/Public/Find-a-Doctor https://www.cpsbc.ca/directory https://www.royalcollege.ca/en/about.html https://www.gmc-uk.org/registration-and-licensing/the-medical-register