Nurse practitioners in Arizona don't need physician supervision. Physician assistants do need a signed supervision agreement until the state board certifies at least 8,000 hours of clinical practice. After that, a PA no longer needs the agreement but must still collaborate, consult or refer as a patient's condition requires, and an employer's own policies can ask for more than the law does.
| Nurse practitioner | PA under 8,000 hours | PA with 8,000 certified hours | |
|---|---|---|---|
| Physician supervision required by law | No | Yes, through a supervision agreement | No agreement required |
| Must consult or refer when needed | Yes | Follows the supervision agreement | Yes |
| Who regulates you | Arizona State Board of Nursing | Arizona Regulatory Board of Physician Assistants | Arizona Regulatory Board of Physician Assistants |
| Main rule | A.A.C. R4-19-101 | A.R.S. 32-2531 | A.R.S. 32-2531 and 32-2536 |
Full practice authority for Arizona NPs
This is what people mean by full practice authority. Arizona's definition of a registered nurse practitioner is built on board certification, an approved education program and national certification, and it doesn't call for a supervising physician. The nursing board's rules go further: "collaborate" means a relationship for consultation or referral on an as-needed basis, and supervision by the collaborating physician isn't required.
The scope of practice rule lets an NP examine patients, make a medical diagnosis, order and interpret tests, and prescribe if authorized. It also has limits. You must consult or refer when a condition is beyond your knowledge and experience, and you prescribe within your population focus.
Prescribing takes board authorization, including 45 contact hours of pharmacology or clinical management of drug therapy within the three years before you apply. That authority comes from the board, not from a physician.
PAs under 8,000 hours: the supervision agreement
A PA with fewer than 8,000 certified hours works under a supervision agreement that describes the PA's scope of practice. The law says you can't perform health care tasks until the agreement is completed and signed, and it has to be kept on file at the main location of your practice.
That applies to new graduates, and it can also apply to an experienced PA who hasn't had hours certified yet. The statute lets the board count hours earned in another jurisdiction, so check where you stand before you assume you start over.
PAs with 8,000 hours: what actually changes
Hours alone don't change your status. A.R.S. 32-2536 asks you to document at least 8,000 clinical practice hours within the previous five years, in Arizona or another jurisdiction. You also need a license in good standing and a degree from an accredited U.S. PA program. The change comes when the board certifies the hours. The statute also describes a different standard for PAs who have been actively practicing for more than five years, so ask the board if that fits you.
Then the statute says you aren't required to practice under a supervision agreement, though you still may. It adds some duties:
- You must keep collaborating with, consulting with or referring to the right health care professional, as the patient's condition calls for.
- Your practice setting's policies determine the level of collaboration.
- Collaboration can happen electronically and doesn't require the other professional to be physically present.
- You are legally responsible for the care you provide.
Your employer has work to do as well. The board's rule has a collaborating physician or entity verify that you qualify and name one or more physicians, by name or position, responsible for oversight. The Arizona Medical Association says this law doesn't amount to independent practice. What it does remove is the agreement requirement. Day to day, the job you take decides how much that changes.
Why the 8,000-hour rule has employers asking questions
The 8,000-hour rule has become much more of a topic lately, and it's leaving some employers feeling lost about what changed, what it means for malpractice and supervision, and what happens with billing. If you're an NP or PA, expect these questions too. Here's what the rules we read say, and where the answer has to come from someone else.
| Employer question | What the rules say | Who to confirm with |
|---|---|---|
| What changed? | A PA with 8,000 certified hours isn't required to practice under a supervision agreement. The practice setting's policies set the level of collaboration. | The PA board |
| What about supervision? | The practice names the physicians responsible for oversight, by name or position, and describes the level of collaboration, the setting, the specialty and any limits. A supervision agreement can still be required when it's warranted, and the statute calls for rules on moves into a setting or specialty that isn't substantially similar. | Your attorney |
| What about malpractice? | A PA without a supervision agreement is legally responsible for the care they provide. The statutes and board rule we read don't address malpractice insurance. | Your malpractice carrier, for both the PA and the physicians |
| What about billing? | Medicare treats state supervisory or collaborative rules as the form of supervision for PAs, and its NP rule still speaks of collaboration with a physician, as state law provides. Arizona's rules we read don't address billing. | Your biller and each payer |
If you're changing a PA's arrangement, make those calls first, then put the policy in writing. The board can ask for a copy of it.
Questions to ask an employer
The law sets the minimum, and each practice sets its own way of working. One thing NPs and PAs often ask is what kind of supporting physicians and other NPs and PAs are in the clinic, especially at a satellite location. It's a good question, because the answer signals stability and good support. Ask these in the interview:
- Which physicians and other NPs or PAs work in this clinic, and on which days? If it's a satellite location, who supports it?
- Who do I go to with a clinical question, and how quickly can I reach them?
- Does a physician review my charts? How many, and how often?
- For PAs: will I work under a supervision agreement or a collaboration policy, and can I read it?
- For PAs: if I reach 8,000 hours here, does anything about my role change?
- For PAs: if my arrangement changes, what changes with my malpractice coverage and billing?
- How many patients a day am I expected to see, and what support do I have?
- Do facility privileges or insurers ask for anything beyond state law here?
These rules change
Arizona's PA rules changed in a 2023 law that has been in effect since the start of 2024, and a related board rule was amended in December 2024. We checked the statutes and rules linked here in November 2026, but they can change, and this is general information rather than legal advice. Confirm your own situation with the Arizona State Board of Nursing or the Arizona Regulatory Board of Physician Assistants.
Moving here from another state? Our Arizona licensing guide covers how to get licensed, and our NP and PA pay guide shows what roles are posting. If you're weighing locum work, this guide explains how it compares with a permanent job.
See open NP and PA jobs
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