Arizona: Ownership and Oversight
No general CPOM; NP independence since 2001; two-track PA model (2024). Arizona is one of the loosest states in the country on both axes: no generally enforced corporate practice doctrine, full NP independence for a quarter century, and a 2024 PA law that lets experienced PAs practice without any physician agreement at all.
Who the statute actually covers
- CPOM posture: Arizona has no generally enforced corporate practice of medicine doctrine; physicians may be employed by ordinary business entities, and professional corporations (A.R.S. Title 10, Ch. 20) are available but not mandatory. Constraints come from licensing law, fee-splitting, and payer rules rather than entity law.
- "Supervision agreement" (A.R.S. § 32-2531): the written agreement required for PAs with fewer than 8,000 AZPA-certified clinical hours, signed with a supervising physician OR with an employer (physician group, physician practice, or licensed health care institution with at least one Arizona physician providing oversight).
- Collaborative-practice certification (A.R.S. §§ 32-2531(B), 32-2536; HB 2043, effective Jan. 1, 2024): Board certification of at least 8,000 clinical practice hours, after which no supervision agreement is required; the PA must collaborate with, consult with, or refer to "the appropriate health care professional" (not necessarily a physician), at a level set by the practice setting's policies; electronic collaboration suffices.
1. Who can own what
| Entity / Path | Who may own | Key limits |
|---|---|---|
| Practice entities | Physicians and other licensees may practice through ordinary corporations and LLCs; lay ownership and physician employment by lay entities are not categorically prohibited. | Arizona deals are policed by licensing boards and payer rules, not ownership percentages. |
| NP-owned practice | Fully viable; Arizona NPs have had full practice authority since 2001 and own practices without any physician relationship. | AZBN is the sole regulator; employer-imposed collaboration is policy, not law. |
| PA-owned practice | No prohibition in entity law; an 8,000-hour collaborative-certified PA can operate without a supervision agreement, making PA-led AZ models unusually feasible. | Sub-8,000-hour PAs in the entity still need supervision agreements. |
| Lay / MSO | Permitted to a degree unusual among states; MSO structures are common and low-friction. | Do not export Arizona assumptions to CPOM states. |
2. Collaborative and supervisory oversight
| Role | Agreement required | Oversight mechanics | Path to independence |
|---|---|---|---|
| PA | Under 8,000 AZPA-certified hours: written supervision agreement with a supervising physician or qualifying employer (§ 32-2531); practice prohibited until signed. 8,000+ certified hours with Board collaborative certification: no agreement; collaboration/consultation/referral per practice-setting policy. | No numeric ratio. The 2023 law removed the supervising physician's blanket responsibility for delegated tasks and the weekly-meeting requirement for off-site practice; scope now runs to any medical service the PA is competent to perform, including prescribing prescription-only medications for up to one year per patient. | Yes: 8,000 certified hours plus Board certification ends the supervision agreement permanently. |
| NP | None. Arizona NPs have full practice authority (since 2001): independent assessment, diagnosis, treatment, and prescribing including controlled substances with DEA registration, under AZBN alone. | No agreements, ratios, chart reviews, or transition periods at any career stage. | Independent from licensure. |
3. Primary authorities
- A.R.S. § 32-2531; § 32-2536; HB 2043 (2023).
- A.R.S. § 32-1601 et seq. (Nurse Practice Act).
- A.R.S. Title 10, Ch. 20 (professional corporations, optional).
Practical read: Arizona is the control case for the rest of the country: almost none of the usual CPOM machinery exists, and the compliance work shifts to payer enrollment, fee-splitting, and clinical scope. The one operational trap is the PA two-track system: an entity staffed with a mix of certified and uncertified PAs is running two different legal regimes in one building, and sub-8,000-hour PAs cannot see a single patient until their supervision agreements are signed.
General education, not legal advice.