The healthcare structuring core: the rules every medical practice inherits

Healthcare is not one industry for structuring purposes. It’s a shared set of rules that every healthcare business, a therapy practice, a nursing home, a med spa, a substance use clinic, has to build around, plus a thin layer of specifics unique to each. This page is the shared set of rules. Every niche this site covers points back here rather than re-explaining it, and reads only its own delta on top.

Corporate practice of medicine, and why it exists

The corporate practice of medicine doctrine bars a lay corporation, one not owned by licensed physicians, from practicing medicine or controlling clinical decisions. The idea underneath it is simple: medical judgment should answer to the patient, not to a shareholder. Roughly 32 states plus DC recognize some form of this doctrine; the remaining states either never adopted it or apply it only loosely through licensing and fee-splitting rules rather than a named doctrine. A handful of states, Georgia, Mississippi, Montana, Ohio, Maryland, Louisiana, Kentucky, and DC among them, are genuinely disputed even among specialists, classified differently depending on which guide you read.

This variance matters immediately: whether a non-physician can own any piece of a healthcare business, and how much, is not a national answer. It’s answered state by state, and the honest first move in any healthcare structuring question is confirming which regime actually applies before assuming the popular template works everywhere.

The friendly-PC and MSO model, the standard workaround

Where CPOM applies, the industry-standard structure splits the business into two entities. A professional corporation or professional LLC, owned by a licensed physician, employs the clinical staff and delivers care. A separate management services organization, which can be owned by non-physicians, including private equity, handles everything else: billing, HR, marketing, real estate, compliance, the entire business side. A management services agreement between the two defines the MSO’s role and its fee, which has to be fixed or cost-based rather than tied to patient revenue or profit, since compensation linked to clinical revenue is exactly what fee-splitting rules exist to catch.

The insight that changes how this page has to be written in 2026

For decades, the piece that made this structure actually work for outside investors was a continuity, or stock-transfer, agreement: a side contract letting the MSO force the transfer of the PC’s ownership to a different, MSO-approved physician if the original “friendly” physician leaves, loses their license, or triggers some other defined event. This mechanism is exactly what let non-physician capital feel secure putting money behind a structure it technically didn’t own.

That mechanism is under direct, live legal attack right now, not as a historical footnote but as an active dispute. A California trial court held in 2026 that a continuity agreement giving the MSO discretion to replace the PC’s physician-owner constituted unlicensed practice of medicine, reasoning that it placed the physician in an untenable position, comply with the corporation’s wishes or lose ownership of their own practice. That ruling is currently on appeal. Separately, and regardless of how the appeal resolves, California enacted two new statutes effective January 1, 2026, that directly restrict this same mechanism for practices with private equity or hedge fund involvement, banning any MSO right to unilaterally replace a PC’s physician-owner and adding a mandatory pre-transaction notice requirement for larger deals. Oregon passed its own version the same year, phasing in restrictions on MSO “de facto control” for new arrangements in 2026 and existing ones by 2029, with a similar underlying concern: an MSO’s practical control over a physician cannot functionally exceed what the state’s ownership rules allow on paper.

The result for anyone structuring in this space today: the classic template, the one nearly every healthcare MSO deal for the last decade was built on, needs a real second look in any state actively tightening this area, starting with California and Oregon, and the honest expectation is that other states follow. A structure copied from a five-year-old deal memo may already be the exact fact pattern regulators are now targeting.

The federal layer, on top of whatever the state says

Regardless of state CPOM treatment, federal fraud and abuse law applies nationally to anything touching Medicare, Medicaid, or federal healthcare dollars. The Anti-Kickback Statute bars payment in exchange for referrals. The Stark Law separately restricts a physician’s financial relationships with entities they refer patients to. EKRA, originally aimed at addiction treatment referral abuses, now reaches more broadly into referral payments across healthcare generally. The False Claims Act sits behind all of it, since a claim submitted to Medicare or Medicaid built on a kickback or a Stark violation is itself a false claim, carrying its own liability and, in serious cases, criminal exposure. None of these federal statutes care what a state’s CPOM rules say; a structure that’s perfectly legal under state ownership law can still violate federal fraud and abuse law entirely independently.

Medicare and Medicaid enrollment, and the change-of-ownership trap

A healthcare provider that bills Medicare or Medicaid is enrolled under those programs specifically, and a change of ownership, a sale, a merger, a restructuring that shifts who controls the billing entity, generally has to be reported and processed through a formal change-of-ownership procedure before the new ownership can keep billing under the existing enrollment. Miss this step, or structure a deal in a way that doesn’t cleanly qualify as an assignable change of ownership, and the practical result can be a gap in the ability to bill at all, or a requirement to enroll from scratch, a process that can take months. This is one of the most common places a healthcare deal actually breaks: the legal closing happens on schedule, and the billing infrastructure doesn’t follow cleanly behind it.

License and provider-agreement continuity

Related to the CHOW issue: a practice’s own state license and its individual payor contracts, including commercial insurance network agreements, don’t automatically transfer with a sale the way a simple asset might. Each one has its own assignment or re-application requirements, and a deal that closes without confirming every license and every material payor agreement actually survives the transaction can leave a buyer holding an entity that legally exists but functionally can’t operate or get paid the way the seller did.

The facility-versus-operations split

The propco, opco, and master-lease structure covered on the building blocks shows up constantly in healthcare specifically, because so many healthcare businesses, nursing homes, assisted living, dental practices, own or lease real estate that’s easy to separate from the licensed operating entity. The real estate sits in its own company, leased to the operating entity that holds the license and bills the payors, which is both an ordinary asset-protection move and, in many deals, the actual mechanism private equity uses to extract value from a healthcare acquisition without touching the licensed entity itself.

What every niche adds on top of this

Every healthcare niche this site covers, therapy practices, skilled nursing, home care, hospice, assisted living, med spas, behavioral health, dental, substance use treatment, physical and occupational therapy, group homes, pharmacy, inherits everything above without restating it. Each niche’s own page covers only its delta: its specific licensing body, its specific ownership quirks, its specific federal overlay beyond the general fraud and abuse rules, and its specific traps. None of them re-teach CPOM, the friendly-PC model, or the federal statutes covered here.

Where this hands off

The entity mechanics behind the friendly-PC and MSO split are The Blueprint’s territory for the structuring choices, and State Lines for the underlying doctrine on liability and ownership. The drafting of the actual management services agreement and any continuity or stock-transfer terms is The Rulebook’s territory. This page’s job is narrower: the rules of the road every healthcare structure has to clear before any of that other work matters, and, as of 2026, an honest warning that one of the road’s oldest, most trusted shortcuts is currently being torn up in the two states most likely to set the pattern everyone else follows next.