Introduction
If you've spent any time researching PA practice ownership, you've probably run into the term "Corporate Practice of Medicine" and wondered what it actually means for your plans. When I first encountered CPOM years ago, I thought it was just bureaucratic noise—legal jargon that surely had easy workarounds.
I was wrong. CPOM is arguably the single biggest legal factor determining whether, how, and in what structure you can own a medical practice as a PA. Understanding it isn't optional; it's foundational.
Here's the good news: once you understand what CPOM actually is and how it's applied in your state, navigating it becomes much less intimidating. It's not an insurmountable barrier—it's a set of rules that, once understood, can be worked within. I've helped PAs in some of the strictest CPOM states build successful practices. It just requires knowing what you're dealing with.
For the complete picture of practice ownership, see our Complete Guide to PA Practice Ownership.
What Is the CPOM Doctrine?
The Corporate Practice of Medicine doctrine is a legal principle that, at its core, says only licensed physicians should practice medicine, employ physicians, or control medical decision-making. It emerged over a century ago when lawmakers worried that corporations would put profits over patients.
The original concern was legitimate. Imagine a scenario where a business owner with no medical training tells a physician how to practice medicine—see more patients, order fewer tests, prescribe cheaper medications—all to boost the bottom line. That's what CPOM was designed to prevent.
Under strict CPOM interpretation, corporations cannot practice medicine directly, employ physicians to practice medicine, control how physicians make clinical decisions, own medical practices, or (in the strictest readings) profit from the practice of medicine.
Here's where it gets complicated for PAs: we're not physicians under these laws. In states with strict CPOM enforcement, that technically means we fall into the same category as any other non-physician—we can't own medical practices either.
But most states have evolved their interpretation significantly. Many have explicit exceptions allowing PA practice ownership. Others permit specific business structures that work around traditional CPOM restrictions. And some states have essentially abandoned CPOM enforcement altogether, even if old laws remain technically on the books.
The key is understanding your specific state's current position. CPOM isn't a federal law applied uniformly—it's a patchwork of state-level rules, case law interpretations, and regulatory guidance that varies dramatically from state to state. What's prohibited in California might be perfectly legal in Arizona.
Why Does CPOM Exist?
Understanding why CPOM exists helps you navigate its requirements—and anticipate how regulators might view your business structure.
The arguments in favor of CPOM are actually reasonable when you consider the original context. Lawmakers worried that if corporations could control medical practices, business pressures would override clinical judgment. Patients might receive inadequate care because seeing more patients was more profitable. Expensive but necessary treatments might be discouraged. Revenue-generating procedures might be pushed over appropriate care.
There was also a concern about preserving professional independence. Medicine has traditionally been self-regulating, and CPOM was meant to ensure that medical decisions remain with licensed professionals who can't be fired for making clinically appropriate but expensive decisions.
The arguments against CPOM are equally valid, particularly in today's healthcare environment. The doctrine was designed for a world of solo practitioners that barely exists anymore. Modern healthcare involves team-based care with PAs, NPs, and other providers. Hospital systems and integrated delivery networks employ thousands of physicians. Technology companies and telehealth platforms have completely disrupted how care is delivered. CPOM feels increasingly anachronistic.
Critics also point out that CPOM creates barriers that can actually harm patients by limiting access to care. When qualified PAs can't open practices in underserved areas because of ownership restrictions, who benefits? The most glaring inconsistency is that hospitals—which are corporations—employ physicians routinely, while independent PAs face restrictions opening small practices. The logical coherence of CPOM has eroded significantly. - Increasing costs through required physician involvement
3. It's Inconsistently Applied
The fact that hospitals (corporations) employ physicians while independent PAs cannot own practices creates obvious inconsistencies that critics argue undermine CPOM's legitimacy.
How CPOM Affects PA Practice Ownership
Here's the critical point: PAs are not physicians under CPOM.
This means that in states with strict CPOM enforcement, PAs technically cannot:
- Own a medical practice outright
How CPOM Affects PA Practice Ownership
Here's the critical point that trips up many PAs: under CPOM, we're classified with non-physicians. That means in states with strict CPOM enforcement, we technically can't own medical practices, employ or contract with physicians, make business decisions affecting clinical care, or receive profits directly from medical services.
But before you get discouraged, here's the good news: most states have created pathways that allow PA practice ownership despite these traditional restrictions. The exceptions take different forms, and understanding which ones apply in your state is key to structuring your practice correctly.
Professional Corporation exceptions allow PAs to form special corporate entities (PCs or PLLCs) specifically for healthcare services in many states. Some states have "allied health" exceptions that explicitly include PAs in rules allowing non-physician healthcare providers to own practices. Collaborative practice exceptions permit PA ownership as long as a supervising or collaborating physician relationship exists—the physician involvement is clinical, not ownership. And even in the strictest CPOM states, Management Services Organization structures can enable PA entrepreneurship by separating business operations from clinical services.
The practical question isn't whether CPOM exists in your state—it's which exceptions apply and how to structure your practice to fall within them.
State-by-State Variations
States fall into three general categories regarding CPOM, and knowing where your state lands shapes your entire approach to practice ownership.
Strict CPOM states actively enforce the doctrine and require careful structuring. California maintains strict CPOM but allows PA Professional Corporations with specific requirements—it's navigable, but the compliance burden is significant. New York is genuinely difficult; the pathways for PA ownership are limited and often require creative structuring. Texas strictly enforces CPOM with the famous 51% physician ownership requirement, which is workable but requires finding the right physician partner. Illinois has a strong CPOM tradition requiring PC structures. Ohio falls moderate to strict with professional entity requirements.
Moderate CPOM states have the doctrine on the books but apply it more flexibly. Florida has CPOM but healthcare exceptions that create workable pathways. Georgia offers moderate enforcement with various structures possible. Pennsylvania commonly uses the professional corporation model. Michigan has CPOM with reasonable exceptions that most PAs can navigate.
Limited or no CPOM states make PA practice ownership straightforward. Arizona doesn't enforce CPOM at all—full PA ownership is simply allowed. Colorado has minimal CPOM restrictions combined with optimal practice authority. North Carolina explicitly permits PA practice ownership. Kansas specifically authorizes PA practice ownership. Wisconsin recently updated its laws to allow PA ownership under a collaborative model.
For detailed state-by-state analysis, see Can PAs Own Their Own Practice?
CPOM-Compliant Business Structures
Understanding which business structures comply with CPOM in your state is crucial. The wrong structure doesn't just create legal risk—it can affect your ability to get credentialed with insurance companies and potentially void your liability protection.
A Professional Corporation is a special corporate form reserved for licensed professionals. You form a PC under state law, and only licensed PAs (and sometimes physicians) can be shareholders. The PC provides medical services directly and offers liability protection for business obligations. This structure works well in states that specifically allow PA Professional Corporations, like California, which has an explicit PA Professional Corporation statute.
A Professional Limited Liability Company operates similarly to a PC but with the flexibility and tax advantages of an LLC. It combines pass-through taxation with professional licensing requirements, and members must be licensed professionals. PLLCs work well in states that allow them for healthcare services and are often simpler to maintain than PCs.
Physician-PA partnerships make sense in states requiring physician co-ownership. The physician owns the required percentage—51% in Texas, for example—while the PA owns the remainder. Here's what many PAs don't realize: ownership percentage doesn't have to match profit distribution. You can structure arrangements where the physician owns 51% but the PA receives 70% or more of profits, reflecting the actual work contribution. The PA often manages day-to-day operations while the physician provides required oversight. Finding the right physician partner is crucial—see our guide on finding a collaborating physician.
Management Services Organizations deserve their own section because they're often the only path in strictly restrictive states.
The MSO model separates business and clinical functions.
How it works: - PA owns the MSO (a non-medical business entity) - A separate professional entity provides medical services - MSO contracts with professional entity for management services - Complex but effective for strict CPOM states
Best for: Strict CPOM states where direct ownership isn't possible
The MSO Model Explained
The Management Services Organization structure deserves a detailed explanation because in some states, it's the only realistic path to PA entrepreneurship.
Here's how an MSO works in practice. You create two separate entities. The first is a Professional Entity—typically physician-owned—that actually provides clinical services and sees patients. The second is the MSO, a separate company that you can own entirely, which provides business services to the professional entity.
The MSO handles everything non-clinical: employing front desk staff, billing specialists, and administrative personnel; owning or leasing the office space and equipment; managing marketing and patient scheduling; handling billing and collections; providing practice management services. What the MSO cannot do is employ clinical providers, make clinical decisions, control how medicine is practiced, or (in most states) have ownership in the professional entity itself.
The MSO charges the professional entity for its services through a management agreement. The fee might be a flat monthly amount regardless of revenue, a percentage of revenue (which must be carefully structured to avoid fee-splitting concerns), or a cost-plus model where the MSO charges its actual costs plus a reasonable profit margin.
Here's the critical point: the management fee must reflect fair market value for the services actually provided. You can't set the fee to capture all the practice profits while leaving the professional entity with almost nothing—that's transparently an attempt to circumvent CPOM and regulators will see through it. The fee needs to be justifiable based on what comparable management services would cost in your market.
The advantages of the MSO model are real. It allows PA entrepreneurship in states that would otherwise prohibit it. The MSO can be structured as an LLC or S-Corp with favorable tax treatment. It separates clinical liability from business operations. And it provides a legitimate, defensible path to practice ownership.
The disadvantages are equally real. MSO structures are complex to set up and maintain. They require a physician partnership for the professional entity. Legal and accounting costs are higher than simpler structures. And there's always some regulatory scrutiny risk—you're using a sophisticated structure specifically to accomplish something that CPOM was designed to prevent.
If you're pursuing an MSO structure, work with a healthcare attorney who has specific experience setting them up in your state. Get a formal valuation of management services to justify your fee structure. Maintain clear documentation that all clinical decisions stay with the professional entity. And review your arrangements periodically to ensure you're adapting to any legal changes.
Common CPOM Compliance Mistakes
After years of helping PAs navigate CPOM, I've seen the same mistakes repeatedly. Learning from others' errors is cheaper than making them yourself.
The most common mistake is assuming CPOM rules are the same everywhere. A structure that's perfectly legal in Arizona might be a regulatory violation in California. I've seen PAs invest thousands of dollars building a business model based on what worked for a colleague in another state, only to discover their state has different rules. Always research your specific state's requirements.
Using online legal services or generic templates for business formation is another frequent error. Healthcare business structures require specialized legal knowledge that LegalZoom and similar services don't have. The documents they produce might be technically valid as general corporate documents while completely missing healthcare-specific requirements. I've seen PAs spend $500 on DIY incorporation and then $5,000 fixing the problems it created.
Improper MSO fee structures get people in trouble regularly. The temptation is to set the management fee high enough to capture most of the practice's profits, effectively transferring economic value from the physician-owned professional entity to the PA-owned MSO. This can be challenged as a CPOM violation or an improper fee-splitting arrangement. Fees need to reflect actual services rendered at fair market rates.
Physician "straw man" arrangements are dangerous. If a physician nominally owns the practice but has no real involvement—no clinical input, no meaningful oversight, just a name on documents—regulators may look through the arrangement. The physician involvement required by your state's laws needs to be genuine, not a paper fiction.
Mixing clinical and business control undermines the entire rationale for structures like MSOs. If the PA owner is making clinical decisions that should rest with the professional entity, you've destroyed the separation that makes the structure legally defensible. Keep business and clinical functions clearly separated, and document that separation.
Finally, neglecting ongoing compliance is a slow-motion disaster. Setting up a compliant structure is just the beginning. You need to maintain corporate formalities, hold required meetings, update agreements as laws change, and ensure your documentation continues to reflect reality. Compliance isn't a one-time event; it's an ongoing responsibility.
Getting Started
Let me give you a practical roadmap for navigating CPOM in your practice ownership journey.
Start by understanding your state's specific CPOM landscape. Does your state have CPOM, and if so, how strictly is it enforced? Are there PA-specific exceptions? What business structures are permitted for medical practices? What physician involvement is required? Our State Requirements Database is a starting point, but verify current rules with primary sources.
Consulting a healthcare attorney isn't optional—it's essential. A healthcare attorney in your state can confirm current CPOM interpretation (which evolves through case law and regulatory guidance), recommend compliant structures for your specific situation, draft the necessary documents correctly, and help you avoid costly mistakes. Budget $3,000 to $10,000 for proper legal setup, more if you need an MSO structure.
Based on state law, evaluate your options. Can you own directly through a PC or PLLC? Do you need a physician partner, and if so, what ownership percentage? Is an MSO structure necessary, or is there a simpler path? What's the most practical approach given your resources and goals?
Build your team accordingly. Beyond the healthcare attorney, you'll likely need a CPA with healthcare experience who understands the tax implications of different structures and the different structures. If your state requires physician involvement, you'll need a collaborating or co-owner physician. Some PAs also benefit from a practice management consultant, though that's optional.
Finally, execute properly once you've chosen a structure. Form entities correctly with your state. Draft all required agreements with healthcare attorney guidance. Maintain proper corporate formalities going forward—this isn't one-and-done. Document clinical independence clearly and continuously.
Frequently Asked Questions
What happens if I violate CPOM?
The consequences can be severe: your practice could be shut down by state authorities, you could face fines and penalties, you could lose your professional license, insurance contracts could be voided leaving you unable to bill, and you could face personal liability exposure that your corporate structure was supposed to protect you from. The severity depends on the nature of the violation and how aggressively your state enforces CPOM, but these aren't risks worth taking.
Can I form an LLC for my PA practice?
In some states, yes—specifically through a Professional LLC (PLLC) that's authorized for medical practices. In other states, you need a Professional Corporation because that's the only structure authorized for healthcare. Some states prohibit any corporate form for certain types of medical practices. This is exactly why you need state-specific legal guidance rather than generic business advice.
How do hospitals get around CPOM?
This is one of the most frustrating inconsistencies in CPOM. Many states have explicit hospital exemptions in their CPOM laws, recognizing that hospital-employed physicians are the norm in modern healthcare. Other states use the "corporate practice" exception for charitable organizations, which hospitals often qualify under. The fact that a hospital corporation can employ thousands of physicians while an independent PA faces restrictions on owning a small practice strikes most people as incoherent. It is. But it's the current legal reality in many states.
Is CPOM going away?
Some states have weakened CPOM through legislation or court decisions, particularly as healthcare delivery models have evolved in ways that don't fit the original solo-practitioner framework CPOM assumed. However, strong CPOM states like California, Texas, and New York show no signs of eliminating it anytime soon. My advice: plan for current law while staying informed about changes. Don't build a practice structure dependent on laws that might change.
Can a PA employ a physician?
Generally, no. This reverses the traditional supervisory relationship that underlies PA practice authority in most states. Even in states allowing PA practice ownership, you typically cannot employ your collaborating physician—you can contract with them for collaboration services or form a partnership, but not an employment relationship. This distinction matters for structuring your practice correctly.
How much does CPOM compliance cost?
Budget $3,000 to $10,000 or more for initial legal setup with a healthcare attorney. Ongoing compliance—maintaining corporate formalities, updating agreements, periodic legal review—runs $1,000 to $3,000 annually. If you need an MSO structure, add $10,000 to $25,000 or more to establish it properly. These costs feel significant, but they're worthwhile to protect your investment, your license, and your ability to practice.
Related Articles
Practice Ownership: - Complete Guide to PA Practice Ownership - Can PAs Own Their Own Practice? State-by-State - How to Find a Collaborating Physician
Business Structures: - LLC vs S-Corp vs PC for PA Practices - PA Practice Startup Costs
State-Specific: - California PA Corporation Requirements - Texas PA Practice Ownership: The 51% Rule
Resources
This guide was written by Robert Byron, PA-C, founder of Elite Medical Marketing. The information provided is for educational purposes and should not be considered legal advice. Consult a healthcare attorney in your state for specific guidance on CPOM compliance.
Last updated: January 2026