House passes measure to tighten corporate practice‑of‑medicine rules, limit MSO control

The Oregon House of Representatives passed Senate Bill 9 51 A on May 28, 2025, a measure intended to strengthen the state's corporate practice of medicine doctrine by limiting the ability of management service organizations and outside investors to exert control over clinical decisions.

Sponsor Representative Ben Bowman said the bill responds to a decades‑old trend of clinic purchases and to tactics that allow corporate purchasers to exercise control while appearing to meet the letter of Oregon law. "This bill is based on a simple principle: That medical decisions should be made by medical professionals," Bowman said on the floor.

The sponsor and supporters said the bill preserves lawful outside investment in health care but draws clearer lines around operational arrangements that could override physician judgment. Among the floor explanations: the bill clarifies ownership and employment arrangements, curtails certain noncompete and stock‑transfer restrictions used to limit physician autonomy, and bans dual‑employment structures that critics describe as captive or friendly physician models.

Backers argued the changes will protect patient care and local access. Representative Laura Davide, who supported the bill, described the historical stakes: "The point is, medicine wasn't always a trusted profession," and said regulatory controls are needed to preserve trust and clinical independence. Several members described local examples in which consolidation had led to provider departures, service reductions or longer patient waits.

Opponents warned the language as written could limit useful administrative support and investment models that sustain clinics, especially in rural or underserved areas. Representative Derek Deal said he supported the intent but worried the bill "goes too far and, in my opinion, will have serious unintended consequences," and called for narrower, enforceable language that separates clinical control from administrative services.

During floor process the House suspended the section‑by‑section reading requirement for the bill and then advanced SB 951 A to final passage. The clerk later announced the bill "having received the constitutional majority, is declared passed." Supporters said the final language in the bill strikes a balance between investment and physician autonomy; critics urged further work to ensure access in rural and lower‑margin markets.

The bill drew bipartisan discussion and multiple floor speakers who recounted local impacts after private equity or insurer purchases of long‑standing clinics. Supporters pointed to endorsements from state professional associations and to previous bipartisan efforts and work groups that shaped the measure. Opponents urged clarifying amendments, exemptions for certain models, and legal protections for providers who had entered lawful contracts prior to the bill's passage.

The bill will move forward through the legislative process after passage by the House; proponents said the intent is to preserve physician decision‑making and patient‑centered care while allowing non‑clinical investment and support services to continue under clearer boundaries.