In nearly all states, a physical therapist assistant (PTA) cannot work under a chiropractor’s supervision to provide physical therapy services. PTAs are licensed to practice only under the direction and supervision of a licensed physical therapist (PT), and a chiropractor does not meet that legal requirement regardless of the clinical setting.
Why a Chiropractor Cannot Supervise a PTA
State physical therapy practice acts are remarkably consistent on this point: only a licensed physical therapist can supervise the physical therapy treatment provided by a PTA. Texas law, for example, states explicitly that no one who is not a PT or PTA, including physicians and other healthcare providers, may supervise physical therapy treatment by a PTA or aide. This applies regardless of the setting, whether it’s a hospital, outpatient clinic, or chiropractic office.
The reasoning is straightforward. A PTA carries out the plan of care that a physical therapist establishes. The supervising PT is responsible for evaluating the patient, designing the treatment plan, and re-evaluating progress. A chiropractor, while a licensed healthcare provider, is not trained or licensed in physical therapy and cannot legally fulfill that supervisory role. Even if a chiropractor employs a PTA, the PTA still needs a licensed PT overseeing the therapy services.
Can a PTA Be Employed by a Chiropractic Clinic?
Employment and supervision are two different things, and this is where it gets nuanced. A chiropractic clinic can technically employ a PTA in some states, but the PTA’s physical therapy work must still be supervised by a licensed physical therapist. The chiropractor can own the practice and sign the paychecks, but the clinical chain of command for therapy services has to run through a PT.
In practice, this means the chiropractic clinic would also need to employ or contract with a licensed physical therapist who evaluates patients, creates treatment plans, and provides the level of supervision that state law requires. That supervision level varies by state. Some states require the PT to be on-site (direct supervision), while others allow the PT to be available by phone or telecommunication (general supervision) as long as they’ve seen the patient and established the plan of care.
Some states go further and restrict this arrangement entirely. A handful of states have corporate practice doctrines or specific physical therapy board rules that limit who can own or operate a practice providing physical therapy services. If you’re considering this type of arrangement, checking your specific state’s physical therapy practice act is essential.
What About “Incident To” Billing?
Some people ask whether a PTA’s services could be billed under Medicare’s “incident to” provision, which allows certain auxiliary personnel to provide services under a supervising practitioner’s billing number. This doesn’t work for chiropractic offices either.
Medicare’s “incident to” rules specify that the supervising practitioners authorized to bill for auxiliary personnel services are physicians (MDs and DOs), nurse practitioners, certified nurse-midwives, clinical nurse specialists, and physician assistants. Doctors of chiropractic are not on that list. Even if they were, “incident to” billing wouldn’t override state physical therapy practice acts that require PT supervision of PTAs.
Medicare also has a very narrow scope of covered chiropractic services, generally limited to manual manipulation of the spine. Physical therapy services provided in a chiropractic setting would need to be billed under their own therapy codes with proper PT oversight, not bundled under chiropractic services.
What a PTA Can and Cannot Do in This Setting
If a chiropractic clinic does have a licensed PT on staff providing supervision, a PTA can perform their usual scope of work: carrying out therapeutic exercises, manual therapy techniques within their training, gait training, and other interventions outlined in the PT’s plan of care. The PTA cannot evaluate new patients, modify the plan of care beyond specific parameters the PT has set, or discharge patients from therapy.
What a PTA cannot do is perform chiropractic services, even if they work in a chiropractic office. Spinal manipulation as practiced by chiropractors falls outside the PTA’s scope of practice. Similarly, a PTA cannot provide services that a chiropractor directs if those services fall under the definition of physical therapy, because the direction must come from a PT.
There’s also a practical concern about role confusion. If a PTA is performing modalities like ultrasound, electrical stimulation, or exercise programs in a chiropractic clinic without PT supervision, that’s likely an unauthorized practice of physical therapy, even if the chiropractor ordered it. State licensing boards investigate these situations and can take action against both the PTA’s license and the clinic.
How Rules Vary by State
While the core principle is consistent across the country, the details differ. Some states allow general supervision, meaning the PT doesn’t have to be physically present for every treatment session but must be reachable and actively managing the case. Other states require direct supervision, with the PT on-site and available to step in. A few states specify supervision ratios, limiting how many PTAs a single PT can oversee at one time.
States also differ on whether a non-PT entity (like a chiropractic practice) can employ physical therapy personnel at all. In states with strict practice ownership laws, only a physical therapist or a physician may own a practice that delivers physical therapy services. In more permissive states, any licensed healthcare entity can employ PTs and PTAs as long as supervision requirements are met.
Your state’s physical therapy licensing board is the definitive source for these rules. Most boards publish their practice act and administrative rules online, and many have FAQ sections that specifically address supervision in non-PT settings.