PMHNP Practice Authority in Missouri: Independence, Physician Agreements and Schedule II

AANP's May 2026 map puts Missouri in its restricted tier.

The label is AANP's advocacy classification; the legal fact behind it is that Missouri delegates an APRN's authority to administer, dispense and prescribe only through a collaborative practice arrangement — a written agreement, jointly agreed-upon protocols or standing orders with a collaborating physician.

The APRN credential comes from the Board of Nursing, but the arrangement is what lets a PMHNP prescribe, and it has no end date.

Any Missouri PMHNP job therefore presumes a physician relationship exists or gets signed before the first prescription.

Missouri has no hours or years threshold after which a PMHNP stops needing a collaborating physician, so there are no transition hours to count: the arrangement is career-long.

What the statute sets instead is a starting condition — the collaborating physician must document at least a one-month period during which the APRN practises with the physician continuously present before practising in a setting where the physician is not continuously present.

The limitation does not apply to providers of population-based public health services, or to arrangements between a primary-care physician and a primary-care APRN or a behavioral-health physician and a behavioral-health APRN where the collaborating physician is new to a patient population to which the APRN is familiar.

A PMHNP paired with a behavioral-health physician may fit that exception, but it waives only the one-month wait — never the arrangement.

The six-FTE cap covers APRNs, physician assistants and assistant physicians combined; the cap exempts hospital employees providing inpatient care, population-based public health services, and certified registered nurse anesthetists providing anesthesia under a supervising anesthesiologist, other physician, dentist or podiatrist.

The physician must review at least ten percent of charts every fourteen days, including at least twenty percent of controlled-substance charts.

For conditions other than acute self-limited or well-defined problems, the physician must examine and evaluate the patient and approve or formulate the plan of treatment for new or significantly changed conditions within two weeks of the visit, and must be present at least once every two weeks where the APRN diagnoses and initiates treatment for acutely or chronically ill persons — except in extraordinary circumstances that shall be documented.

Geographic proximity is required but waivable: when the arrangement outlines telehealth; for up to 28 days per calendar year for certain rural health clinics, with alternative plans in the arrangement; or by board waiver, granted if the boards find adequate supervision exists, deemed approved on no action within 45 days.

What a collaborating physician may delegate is fixed by statute: controlled substances listed in Schedules III, IV and V, plus Schedule II hydrocodone — and the delegation may not extend to administering them to induce sedation or general anesthesia for therapeutic, diagnostic, or surgical procedures.

Schedule III narcotics and Schedule II hydrocodone are capped at a 120-hour supply without refill.

Every other Schedule II drug is hospice-only: the arrangement may delegate Schedule II prescribing for hospice patients only, and only for an APRN employed by a hospice provider certified under chapter 197 that the arrangement designates as a location where the APRN is authorized to practice and prescribe.

The headline: an outpatient Missouri PMHNP cannot prescribe Schedule II ADHD stimulants — those prescriptions need a physician.

Buprenorphine is the opening the statute gives: up to a 30-day supply without refill for patients receiving medication-assisted treatment, under the collaborating physician's direction, and the rule requires an initial opioid prescription for acute pain to comply with RSMo 195.080.

Missouri's separate BNDD registration was not read in the sources for this page.

A PMHNP registers with the DEA as a mid-level practitioner, and that registration covers only what Missouri lets the APRN prescribe — a DEA form listing Schedules II to V does not override the hydrocodone-only rule.

Telehealth has a statutory foothold inside the arrangement: geographic proximity can be waived when the arrangement outlines the use of telehealth, and for an APRN providing services under RSMo 335.175, the board rule lets the physician's two-week evaluation happen via live interactive video or in person.

But the DEA and HHS telemedicine flexibilities, extended through December 31, 2026, only remove the federal in-person-visit requirement; they lift no Missouri limit, so a telehealth patient still cannot receive a Schedule II stimulant from a PMHNP outside hospice care.

Missouri has not enacted the APRN Compact.

The compact takes effect only once seven states enact it, and as of September 2026 five had (Delaware, North Dakota, South Dakota, Utah and Wyoming), so no APRN holds a multistate APRN licence today.

The Nurse Licensure Compact is an RN compact and gives no nurse practitioner authority in another state.

A PMHNP moving to Missouri needs a Missouri APRN credential and a Missouri collaborative practice arrangement before prescribing — and the arrangement is the part to line up first, since practising where the physician is not continuously present waits on the documented one-month continuously present period unless an exception applies.

The current RSMo 334.104 took effect August 28, 2023, amended by five 2023 bills (H.B.

115 & 99, H.B.

402, S.B.

45 & 90, S.B.

70 and S.B.

157) — it is the version every statute quote on this page is read from.

The Board of Nursing's rule, 20 CSR 2200-4.200, was amended effective July 30, 2024, after an emergency amendment effective April 11, 2022 that expired; the printed rule also carries a note that Executive Order 21-09 suspended paragraph (2)(B)2 from March 26, 2020 through December 31, 2021, and subsections (2)(C) and (4)(E) from April 2, 2020 through December 31, 2021.

Neither document was re-fetched after 2026-09-24, so confirm the current text with the board before relying on it.