What is the difference between MSO and PC structure for a medspa?

The MSO/PC structure exists because of the Corporate Practice of Medicine (CPOM) doctrine. CPOM is a legal principle in many states that says only licensed physicians can own corporations that practice medicine. The doctrine was created to prevent corporate interference with clinical decisions. The unintended consequence: in states that enforce CPOM strictly, NPs and other non-physician clinicians can't directly own a medical practice.

The MSO/PC split solves this:

Professional Corporation (PC). Owned by a licensed physician. Holds the medical license. The PC employs the clinicians (NPs, RNs, PAs), delivers care to patients, and bills for clinical services. The physician owner is typically the medical director.

Management Services Organization (MSO). Owned by the non-physician operator (often the NP who is actually running the business day-to-day). The MSO owns the brand, real estate or lease, equipment, marketing, EMR system, and provides "management services" to the PC under a Management Services Agreement (MSA). The PC pays the MSO a fee for those services.

How money flows: 1. Patient pays the PC for clinical services. 2. The PC pays the clinician (often the NP-operator, who is W-2 employed by the PC). 3. The PC pays the MSO a management fee under the MSA — typically structured as a fixed monthly fee, a percentage of net revenue, or both. 4. The MSO covers its operating costs (rent, equipment, marketing, software) and retains profit for its owner.

States where this matters most: - California — strict CPOM, MSO/PC is mandatory for NP-owned aesthetic practices unless AB890 Category 103 applies. - New York — strict CPOM under Business Corporation Law §1503. - Illinois — strict CPOM. - Texas — strict CPOM, the PC is called a "Professional Association" (PA) in TX. - New Jersey — strict CPOM. - Florida, Georgia, North Carolina, Ohio, Pennsylvania — moderate-to-strict CPOM, MSO/PC is standard.

What to know if you're setting one up: - Find a physician who will own the PC. This is the longest-lead item in most build timelines. - Management Services Agreement (MSA) drafted by counsel familiar with your state's CPOM doctrine. The fee structure must be commercially reasonable — not a back-door way to give the MSO owner control over clinical decisions. - Separate bank accounts, separate EINs, separate tax returns. - Both entities need state-appropriate licensure and registration.

This is more moving parts than a Full Practice state, but it's a well-understood structure and counsel in CPOM states handle it routinely. Budget $3,000–$8,000+ for initial entity setup and MSA drafting in a strict-CPOM state.