Dr. Celeste Thirlwell, Toronto Psychiatrist Loses Medical Licence Over COVID Exemptions
A Toronto psychiatrist, Dr. Celeste Thirlwell, has had her medical licence revoked after Ontario’s physician regulator ruled she issued hundreds of COVID-19 exemption letters that did not meet its standards.
The decision, issued by the College of Physicians and Surgeons of Ontario (CPSO) discipline tribunal, took effect in February 2026 and permanently removes her ability to practise medicine in the province.
According to the tribunal decision, Dr. Thirlwell issued approximately 1,425 exemption letters between August and October 2021, covering COVID-19 vaccination, masking, and testing requirements. According to the tribunal, 999 were for vaccinations, 230 were for masking, and 196 were for PCR testing. Many of the letters were for children whose parents were denied medical exemptions.
The tribunal found the exemptions were issued without appropriate clinical assessment, without sufficient documentation, and outside recognized medical indications.
Tribunal findings also indicate that patients were charged directly for exemption letters, typically ranging from $50 to $300, with total earnings estimated at over $400,000 during the period in question—underscoring how much individuals were willing to pay for medical choice.
Tribunal Findings
The CPSO Discipline Tribunal found that Dr. Thirlwell:
- Failed to meet the standard of practice
- Failed to maintain adequate medical records
- Did not provide appropriate patient counselling
- Failed to cooperate with the CPSO investigation
Her conduct was classified as:
- Professional misconduct
- Disgraceful, dishonourable, or unprofessional conduct
- Incompetence under Ontario law
Licence Revoked
The tribunal imposed its most serious sanction:
- Revocation of her certificate of registration (licence)
- A formal reprimand
- An order to pay a penalty of $10,370.
A Broader Question of Medical Autonomy
While regulators frame such decisions as necessary to enforce standards, the case raises deeper concerns about the limits placed on physicians during the COVID era.
At a time when many Canadians were seeking individualized medical guidance, doctors who deviated from centralized policy—particularly around the experimental COVID-19 injections—faced increasing scrutiny and discipline.
The Thirlwell case highlights a central tension that remains unresolved:
Should physicians be free to exercise independent clinical judgment based on individual patient needs—or required to adhere strictly to evolving regulatory directives, even when those directives limit flexibility?
For patients who were unable to obtain exemptions through conventional channels, cases like this underscore the narrowing space for personalized care within a highly standardized system.
Years later, the consequences of those policies—and the actions taken against physicians—continue to reverberate.
Medical freedom—the right to informed consent and individualized care—is not a privilege. It is a fundamental principle of ethical medicine.
Sources:
Ontario Physicians and Surgeons Discipline Tribunal decision (CanLII)
Toronto Life, Toronto doctor stripped of licence for writing improper COVID-19 exemptions
CP24, Ontario doctor stripped of licence after allegedly issuing 1,400 COVID-19 exemption letters ‘for profit’
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