The Missouri Senate is considering a bipartisan bill that would allow some advanced practice registered nurses to prescribe controlled substances without a physician collaboration agreement — a change supporters say is urgently needed to keep qualified NPs in the state and expand access to care in underserved communities.
The measure, introduced by Sen. Patty Lewis (D-Kansas City) and Sen. Nick Schroer (R-St. Charles), is currently before the Senate's Emerging Issues and Professional Registration Committee. It has cleared a hearing but faces significant opposition from organized medicine — a pattern familiar from several prior sessions in which similar legislation stalled.
What the Bill Would Actually Do
Under current Missouri law, advanced practice registered nurses — including nurse practitioners, clinical nurse specialists, and certified nurse-midwives — must maintain a formal collaboration agreement with a licensed physician in order to prescribe controlled substances. That category covers a broad range of commonly prescribed medications: stimulants like Adderall, opioids for pain management, and depressants including Xanax and Valium.
The proposed legislation would not eliminate collaboration requirements for all NPs. Instead, it would create a pathway for experienced APRNs who have already demonstrated a sustained period of supervised practice. Specifically, it would remove the collaboration requirement for APRNs who have logged 2,000 documented hours working alongside a collaborating physician — a threshold designed to ensure that independent prescribing authority follows demonstrated clinical experience, not replaces it.
Key distinction: This bill does not eliminate the physician collaboration requirement outright. It creates a supervised experience pathway — similar in structure to the transition-to-practice models used in other states — after which qualified APRNs could prescribe controlled substances without an ongoing collaboration agreement.
Why Missouri Is Having This Debate Now
Missouri is not a neutral starting point. By national standards, the state has some of the most restrictive rules governing nurse practitioners, and the gap between Missouri and its neighbors has become increasingly untenable for the state's healthcare workforce.
"Where I live, I've talked to several nurse practitioners who chose to work in Kansas instead of Missouri because of the restrictions," Sen. Lewis said. "Some of our nurse practitioners have to pay up to $50,000 a year to collaborate with a provider. But they're not really collaborating, they're just giving them money. I've heard some folks say it's a great retirement fund."
The $50,000 figure isn't an abstraction. In many cases, Missouri APRNs describe paying a flat annual fee to a physician who provides the legally required agreement but has no meaningful involvement in patient care decisions. The collaboration agreement becomes, in practice, a regulatory tax — with the proceeds going to physicians, not to oversight or mentorship.
A Columbia-based nurse practitioner filed a lawsuit in 2025 directly challenging the agreement requirement. The Missouri State Medical Association responded by decrying what it called "a coordinated national campaign to dismantle physician oversight and redefine scope of practice through the courts."
The Debate: Where Each Side Stands
- Restrictive laws push trained NPs to neighboring states, worsening Missouri's provider shortage
- Many collaboration agreements are financial transactions, not clinical partnerships
- 7 of 8 surrounding states already have less restrictive rules
- 30+ states have granted full practice authority with no measurable decline in care quality
- The 2,000-hour threshold ensures experience before independent prescribing authority
- Collaboration agreements are safeguards, not bureaucratic relics
- Physician oversight provides mentorship and a clinical backstop when complex cases arise
- The cost of agreements reflects "shared responsibility," not a fee arrangement
- Removing oversight may harm patients, particularly in complex prescribing scenarios
- Similar legislation has been opposed and defeated in prior Missouri sessions
The Missouri State Medical Association has stated that collaboration agreements "exist to protect patients, ensure continuity of care, and uphold clinical standards through physician-led, team-based care. They are not bureaucratic relics — they are safeguards rooted in decades of medical expertise and interdisciplinary teamwork." Missouri doctors further argue that the cost of these agreements is not a "transactional checkbox" but reflects genuine shared responsibility for patient outcomes.
A Long Legislative History Without a Win
This is not the first time Missouri legislators have tried to expand NP practice authority. Similar bills have been introduced and failed in multiple previous sessions, making the current measure's prospects uncertain even with bipartisan sponsorship.
What has changed is the accumulating body of research and the growing disparity between Missouri and surrounding states. As more neighboring states — including Kansas, Arkansas, Tennessee, and others — have relaxed their NP practice rules, Missouri's restrictions have become increasingly anomalous. That regional comparison is now at the center of the workforce argument being made in committee.
What This Means for NPs Practicing or Training in Missouri
For Missouri-based NPs or new graduates weighing where to establish a practice, the current regulatory environment creates concrete trade-offs:
- Ongoing collaboration costs. Until and unless this law changes, Missouri NPs who prescribe controlled substances must maintain a collaboration agreement — at costs that can reach $50,000 annually for solo or rural practitioners who may have limited ability to negotiate.
- Geographic arbitrage. Many NPs trained in Missouri or with Missouri ties have chosen to practice in Kansas, Arkansas, or other neighboring states specifically to avoid these costs and restrictions. This is a documented workforce drain.
- Legal uncertainty. The 2025 lawsuit challenging the collaboration requirement adds a layer of ongoing legal uncertainty to an already complicated regulatory picture.
- Post-residency pathway. If the bill passes, NPs who have completed post-graduate residency programs — where supervised hours are meticulously documented — would be well-positioned to satisfy the 2,000-hour threshold and transition to independent prescribing authority more quickly than NPs who lack that structured training record.
For NP grads considering Missouri: The outcome of this legislation is not yet determined. If the bill passes, NPs with documented residency training hours may have a streamlined path to the 2,000-hour threshold. If it fails, the current collaboration agreement requirement — and its associated costs — remains in place. Tracking this bill through the Missouri Senate's Emerging Issues and Professional Registration Committee is worthwhile for any NP evaluating Missouri as a practice destination.
What Comes Next
The bill remains in committee as of early 2026. The Senate's Emerging Issues and Professional Registration Committee must advance it before it can receive a floor vote, and organized medicine's opposition has historically been enough to slow or block similar measures. At the same time, bipartisan sponsorship — a Democrat and a Republican co-leading the bill — represents an unusual coalition that may give it better odds than prior attempts.
For Missouri's NP workforce, rural communities, and the broader conversation about how the state competes for healthcare providers, the stakes are clear. More than 30 states have already made this change, and the research following those decisions has consistently shown no deterioration in patient outcomes. The question for Missouri remains whether that evidence, and the economic pressure of losing trained NPs to neighboring states, will be enough to finally move the needle.
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