No — a PTA cannot work under a chiropractor’s supervision. Every state requires that a licensed physical therapist direct and supervise a physical therapist assistant’s clinical work, and a chiropractor’s license does not carry that authority. A PTA can work inside a chiropractic office, but only if the practice also employs or contracts with a licensed PT who takes responsibility for evaluations, treatment planning, and oversight of everything the PTA does.
Why the Supervising Provider Has To Be a PT
A PTA’s authority to treat patients is borrowed authority. It flows from the supervising physical therapist’s license, and it exists only as long as that supervisory relationship exists. The FSBPT Model Practice Act, which most states use as the template for their own laws, describes supervision as a function that “belong[s] solely to the licensed physical therapist.”1Federation of State Boards of Physical Therapy. The Model Practice Act for Physical Therapy The APTA is equally direct: “The physical therapist is directly responsible for the actions of the physical therapist assistant in all practice settings.”2American Physical Therapy Association. Direction and Supervision of the Physical Therapist Assistant
A chiropractor holds a different license under a separate practice act. No state licensing board recognizes a doctor of chiropractic as a substitute supervisor for a PTA, regardless of how much clinical overlap exists between the professions. A PTA who treats patients without a supervising PT is practicing outside their license. A chiropractor who directs PT services without holding a PT license risks discipline from the chiropractic board and enforcement from the physical therapy board.
The Only Compliant Arrangement
If a chiropractic office wants to bring on a PTA, it has to bring on a PT too. The physical therapist evaluates patients, writes the plan of care, signs off on progress reports, and supervises the PTA under state law. The chiropractor treats within chiropractic scope. Two licensed providers, two scopes of practice, one office.
The dual-provider model is legal and workable, but it comes with real overhead. The PT must personally perform every initial evaluation, every re-evaluation, and every plan-of-care certification, and the PT carries full legal responsibility for the PTA’s work.2American Physical Therapy Association. Direction and Supervision of the Physical Therapist Assistant Many states also cap how many PTAs a single PT can supervise at once. Ratios range from two to five depending on the jurisdiction; some states leave the number to professional judgment.3Federation of State Boards of Physical Therapy. Jurisdiction Licensure Reference Guide – PT Supervision Ratios A chiropractic office that hires a PTA without lining up sufficient PT coverage is starting with a compliance problem.
What About Working as a Chiropractic Assistant?
A person who happens to hold a PTA license can work in a chiropractic office in a chiropractic assistant role, doing tasks that fall inside the chiropractor’s scope: applying heat packs, helping patients with exercises the chiropractor has prescribed, front-desk and administrative work. Those duties aren’t being performed as physical therapy, so they don’t require a supervising PT.
The line is thin, though, and licensing boards know it. The moment the PTA uses their PT training to evaluate a patient, adjust a treatment approach, or document care as physical therapy, the arrangement stops being chiropractic assistance and starts being unsupervised physical therapy. That triggers the same exposure described above for both the PTA and the chiropractor.
What a PTA Can and Can’t Do Once a PT Is Supervising
Even with a licensed PT on staff, the PTA’s role has firm boundaries. Under PT supervision, a PTA can carry out the interventions in the PT’s treatment plan: therapeutic exercises, manual techniques such as soft tissue mobilization, and physical modalities like ultrasound or electrical stimulation.
Regardless of setting, a PTA cannot:
- Evaluate new patients. The initial evaluation and physical therapy diagnosis belong to the PT.
- Write or change the plan of care. The PTA implements; the PT plans and modifies.
- Perform formal re-evaluations or progress reports.
- Practice without an identified, accessible, legally responsible supervising PT.
Deciding which patients are appropriate for PTA treatment and which require direct PT involvement is a clinical judgment the supervising PT has to make. It can’t be delegated to the PTA, and it certainly can’t be delegated to the chiropractor who owns the practice.2American Physical Therapy Association. Direction and Supervision of the Physical Therapist Assistant
Billing Realities in a Chiropractic Office
Billing is where most of the practical headaches show up. Medicare and private insurers each have their own rules, and a chiropractic setting draws extra scrutiny.
Medicare Covers One Chiropractic Service
Medicare Part B covers exactly one chiropractic service: manual spinal manipulation to correct a vertebral subluxation.4Medicare. Coverage for Chiropractic Services Every other service a chiropractor provides, including any physical therapy codes, is non-covered when billed under the chiropractor. If the practice bills physical therapy CPT codes to Medicare, those claims must go out under the supervising PT’s credentials with the appropriate therapy modifier (GP) so they route through therapy payment edits.
The PTA Pays 15 Percent Less
Services furnished by a PTA are reimbursed at 85 percent of what Medicare would pay if a PT performed the same service. Claims must carry the CQ modifier whenever the PTA independently provides more than 10 percent of the service or unit of service.5Centers for Medicare & Medicaid Services. Therapy Services That reduction is permanent and stacks on top of the other constraints of running therapy inside a chiropractic office. For a small practice doing the math on hiring both a PT and a PTA, this figure matters.
The 2025 Supervision Change
Before 2025, Medicare required direct supervision of PTAs in private practice outpatient settings, meaning the PT had to be physically on-site whenever the PTA treated a Medicare patient. Effective January 1, 2025, CMS moved to general supervision for PTAs in private practice for all applicable physical and occupational therapy services, and the rule remains in effect going forward.6Centers for Medicare & Medicaid Services. Calendar Year (CY) 2025 Medicare Physician Fee Schedule Final Rule General supervision lets the PT be off-site as long as they’re reachable by telecommunication. That makes the dual-provider model in a chiropractic office more workable, but the PT still has to be physically present for evaluations, re-evaluations, and progress reports. State law can be stricter than the Medicare rule, and where it is, state law controls.
What Happens When Practices Ignore the Rules
Practicing physical therapy without proper licensure or supervision is a criminal offense in most states. Depending on the jurisdiction, penalties include fines, license suspension or revocation, and misdemeanor charges. Both providers are exposed: the PTA for practicing outside their scope, the chiropractor for directing services they aren’t licensed to supervise.
The financial side can be worse than the criminal side. Insurance claims for physical therapy services delivered without proper PT supervision are fraudulent. Payers can claw back payments, impose penalties, and refer the case out for investigation. A board complaint, even one that stops short of revocation, leaves a public disciplinary record that follows both professionals for the rest of their careers.
Verifying the Rules in Your State
Every state writes its own physical therapy practice act and its own chiropractic practice act, so the specifics of supervision, scope, and permissible practice arrangements vary. Two places to check: your state Board of Physical Therapy and your state Board of Chiropractic Examiners, usually housed under a department of health or professional regulation. Both post their statutes and administrative rules online. The Federation of State Boards of Physical Therapy also keeps a jurisdiction-by-jurisdiction reference covering supervision ratios and other PTA practice requirements.3Federation of State Boards of Physical Therapy. Jurisdiction Licensure Reference Guide – PT Supervision Ratios Before signing an employment agreement or opening a therapy line inside a chiropractic office, confirm the rules against both boards in writing.