Medspa Ownership & MSO Structure Rules by State

The CPOM doctrine holds that the practice of medicine is a learned profession that cannot be commercialized or controlled by non-physicians. Under strict CPOM, a corporation, partnership, or non-physician individual cannot own a medical practice, employ physicians, or direct clinical decisions. Instead, the physician must own and control the practice. The doctrine originated in the early 20th century to prevent lay exploitation of medicine and remains law in roughly 20 states (including California, Texas, Florida, and New York), though enforcement and interpretation vary widely. States without CPOM (such as Delaware, Nevada, and many others) allow non-physicians to own medical practices outright. The practical consequence: in CPOM states, a medspa owner who is not a licensed physician must use an MSO structure to separate ownership of the business from ownership of the medical practice.

An MSO is a separate entity—typically an LLC or corporation—owned by non-physicians (or a mix of non-physicians and physicians) that provides management, administrative, and operational services to a medical practice. The medical practice itself remains owned and controlled by a licensed physician (or group of physicians). The MSO handles billing, staffing, marketing, equipment leasing, real estate, and supply chain; the physician-owned practice handles clinical decisions and patient care. The MSO and practice are bound by a Management Services Agreement that specifies the scope of services, fees (typically a percentage of revenue or fixed monthly amount), and governance. This structure is legal in CPOM states because it preserves physician control over medical decisions while allowing non-physician capital and entrepreneurship. However, MSO agreements must be carefully drafted to avoid the appearance of the MSO controlling clinical practice—regulators scrutinize arrangements that look like the MSO is directing treatment decisions or patient selection.

CPOM States (strict or moderate enforcement): California, Texas, Florida, New York, Pennsylvania, Illinois, Ohio, and others prohibit non-physician ownership of medical practices. In these states, an MSO structure is standard. Non-CPOM States: Delaware, Nevada, Arizona, Colorado, and many others allow non-physicians to own medical practices directly. A non-physician entrepreneur can own a medspa outright in these states without a physician partner. Hybrid or Ambiguous States: Some states (e.g., Georgia, North Carolina) have weak or unenforced CPOM doctrines, or allow certain non-physician providers (nurse practitioners, physician assistants) to own practices under specific conditions. Critical: State law also governs scope of practice for mid-level providers (NPs, PAs, RNs). Some states allow NPs to operate independently; others require physician supervision. Verify your state's medical board rules on delegation, supervision distance, and prescriptive authority. Do not rely on national generalizations—consult your state medical board and a healthcare attorney licensed in your state.

In an MSO model, the physician-owner(s) of the medical practice typically receive compensation in two forms: (1) salary or draw from the medical practice (funded by patient revenue), and (2) profit distributions from the medical practice after expenses. The MSO, in turn, receives a management fee from the medical practice—often 20–40% of gross revenue, though this varies by market and service mix. The MSO fee must be reasonable and defensible; regulators and auditors scrutinize arrangements where the MSO extracts excessive fees, leaving the physician-practice undercapitalized or unable to provide quality care. The physician-owner must also maintain day-to-day control over clinical decisions: patient selection, treatment protocols, staff credentials, and quality standards. If the MSO appears to control these decisions, the arrangement risks being recharacterized as unlawful corporate practice of medicine. Document physician governance through board minutes, clinical policies, and regular physician-MSO meetings.

State medical boards and state attorneys general enforce CPOM doctrine unevenly. Some states (California, Texas) actively investigate and prosecute violations; others rarely enforce it. Enforcement often occurs only when a patient complains, a competitor reports, or an audit reveals suspicious fee arrangements. The Federal Trade Commission and state attorneys general also scrutinize MSO arrangements under antitrust law if the MSO is used to consolidate multiple practices or restrict competition. Red flags that invite scrutiny: MSO fees that exceed 50% of revenue, MSO control over physician hiring/firing, MSO directing clinical decisions, undisclosed non-physician ownership, or rapid acquisition of multiple practices in a single market. Best practice: Engage a healthcare attorney in your state to draft or review your MSO agreement, ensure physician governance is documented, and maintain arm's-length fee arrangements. Some states require MSO agreements to be filed with the medical board or attorney general; check your state's requirements.

If you operate or plan to operate medspa locations across multiple states, each state's CPOM rules and scope-of-practice laws apply to that location. A physician-owner in California cannot supervise a medspa in Texas remotely; each location must have a licensed physician (or qualifying mid-level provider) physically present or available per that state's delegation rules. Multi-state MSO operators typically establish separate physician-owned practices in each state, all managed by a single national MSO. This requires coordinating multiple state medical board registrations, malpractice insurance policies, and compliance protocols. Key considerations: Telemedicine and remote supervision rules vary by state and are evolving; do not assume a physician in one state can supervise injections or procedures in another state. Mid-level provider licensing and scope vary dramatically (e.g., NPs in California have broader independent authority than NPs in some other states). Verify each state's rules before opening a location. Some states also require the MSO to be registered or licensed; check your state attorney general's office.