Physician Assistants in Ontario: What Medical Clinics Need to Know in 2026
Physician Assistants are becoming an increasingly important part of the healthcare workforce in Ontario. For clinic owners and physicians, there is growing interest in how PAs can be integrated into practice, especially as access pressures increase and patient demand continues to rise. At the same time, there is still confusion around how PAs are regulated, what they are allowed to do, and how they fit into a clinic setting. Understanding the current framework is essential before incorporating PAs into your model.
What is a Physician Assistant
A Physician Assistant is a healthcare provider who works under the supervision of a licensed physician. PAs are trained in medical programs that follow the medical model, meaning they are educated to assess patients, develop treatment plans, and perform certain clinical tasks as delegated by a supervising physician. However, they do not practice independently. Their ability to perform clinical activities is based on physician delegation and supervision.
Regulatory status in Ontario
As of 2026, Physician Assistants are not independently regulated healthcare professionals in Ontario. They are not members of the College of Physicians and Surgeons of Ontario, and they do not hold independent licenses to practice medicine. Instead, their work is governed through:
- physician supervision
- delegation frameworks
- employer credentialing processes
In recent developments, CPSO has introduced a Physician Assistant Register.
This register allows for:
- formal listing of Physician Assistants
- increased transparency
- improved oversight of PA involvement in clinical settings
It is important to understand that this register does not change the fundamental structure of practice.
PAs still:
- work under physician supervision
- do not practice independently
- cannot bill OHIP directly
Scope of practice
The scope of a Physician Assistant is determined by the supervising physician. PAs can perform a wide range of clinical tasks when appropriately delegated, which may include:
- patient assessments
- history taking and documentation
- ordering tests (as directed)
- assisting with procedures
- follow-up care
The exact scope depends on:
- physician comfort and supervision
- clinic setting
- policies and protocols
Responsibility for care ultimately remains with the supervising physician.
How PAs are used in clinical settings
Physician Assistants are commonly used in:
- hospitals
- surgical settings
- specialty clinics
- some primary care environments
In a clinic setting, PAs can support:
- patient flow
- follow-up visits
- routine assessments
- procedural assistance
They are often used to extend physician capacity rather than replace it.
Benefits of integrating a PA into a clinic
When used properly, PAs can provide several advantages.
Improved patient access
PAs can help increase the number of patients seen without requiring physicians to work longer hours.
Better workflow efficiency
Routine and follow-up care can be delegated, allowing physicians to focus on more complex cases.
Support for physician workload
PAs can reduce administrative and clinical burden when integrated into the care team.
Enhanced team-based care
They can act as part of a broader care model alongside physicians, nurses, and allied health providers.
Limitations and considerations
There are also important limitations that clinics must understand.
Supervision requirement
PAs must always work under a supervising physician. They cannot operate independently.
Billing structure
PAs cannot bill OHIP directly. All billings must be submitted under the supervising physician, in accordance with applicable billing rules and delegation practices.
Liability and responsibility
The supervising physician remains responsible for the care provided under delegation.
Operational structure
Clinics need to establish clear workflows, supervision protocols, and documentation standards.
When does a PA make sense
A PA can be a good fit for clinics that:
- have high patient volume
- need support with follow-ups and routine care
- are looking to improve access
- have physicians available to provide appropriate supervision
They are less effective in settings where:
- physician availability is limited
- supervision structures are not clearly defined
Final thoughts
Physician Assistants are becoming a more visible part of the healthcare system in Ontario. While they are not independently regulated professionals, they can play a meaningful role in improving access, efficiency, and workflow when integrated properly into a clinic. For clinic owners and physicians, the key is understanding how PAs fit within the existing regulatory and operational framework. Used appropriately, they can be a valuable extension of the care team.