Key Takeaway:
No, non-physicians generally cannot own or invest in a medical practice in California under Corporate Practice of Medicine (CPOM) rules. But investors and business operators can participate legally through MSO models and compliant agreements.
It is a common misconception among businesspersons in California that they can simply start investing in medical practices. This was exactly the case for one of our clients.
He held 20% ownership in a medical corporation with a doctor and had already invested $25,000, with plans to invest more. He only intended to handle the administrative side of the business.
It raised an important question about California medical corporation ownership—specifically, can a non-physician own a medical practice?
See how we helped our client protect his investment and restructure the relationship through a compliant MSO agreement.
Why California Medical Corporation Ownership Rules Don’t Allow Non-Physicians
The issue is not just medical practice ownership structure. CPOM California laws are intended to prevent unlicensed individuals from interfering with, or influencing, a physician’s professional judgment and patient-care decisions.
For a comprehensive guide on CPOM California rules, you can also check our page: Can a Non-Physician Own a Medical Practice?
Who Can Legally Own a Medical Corporation in California?
Only certain licensed medical professionals can legally own a medical corporation, according to California’s Moscone-Knox Professional Corporation Act. Let’s break down who can be shareholders of a medical practice.
Who Can Own 51% Shares or More
Licensed physicians and surgeons are the only medical professionals who can legally own and be a major shareholder in a professional medical corporation in California. This means they’re the only professionals who can hold 51% shares or more.
These professionals must be licensed in California and maintain their licenses in good standing. They have the authority to make all clinical decisions and must retain majority control of the professional medical corporation.
Who Can Own Up to 49% Shares (Nothing More)
Certain licensed healthcare professionals may hold up to 49% ownership. California Corporations Code 13401.5 lists the allowed professionals, including (but not limited to) doctors of podiatric medicine, psychologists, registered nurses, and optometrists.
They must be licensed in California and their combined ownership cannot exceed the physician ownership percentage.
Can a Businessperson Own Medical Practice and ONLY Handle Administrative Tasks?
Even if a businessperson only handles administrative work, the ownership restriction still applies. If you are not licensed in any healthcare profession mentioned above, you generally cannot hold shares or receive profits tied to clinical services.
In our client’s case, he had already invested $25,000 and planned to invest more—before realizing the medical practice ownership structure goes against California medical corporation ownership rules.
The MSO Solution: How a Non-Physician Can Legally Get Involved in a California Professional Medical Corporation?
Our client still wanted to assist with the business and administrative work. To keep the arrangement compliant, we suggested a common approach: a physician-owned medical corporation paired with a separate Management Services Organization (MSO).
In this structure, the physician-controlled medical practice could enter into an agreement with an MSO owned by our client. This way, our client could establish a business relationship with the medical doctor legally.
What Can a Non-Physician Do Through MSO for a Medical Corporation?
As an MSO in California, you can provide non-clinical services under a written agreement with the physician who owns the medical practice. It allows our client to remain involved in the business by handling responsibilities, including:
- Administrative operations: Front desk management, scheduling, and patient communications
- Billing and collections: Overseeing insurance claims and payment processing
- HR and staffing for non-clinical roles: Recruiting, payroll, and employee compliance
- Marketing and branding: Managing online presence, ads, and community outreach
- Financial services: Bookkeeping, budgeting, and non-clinical financial planning
- Facility and non-clinical equipment management: Maintaining the office and procuring non-medical supplies
These services allow a non-physician to support the business side of the practice while physicians retain full control over medical decisions and patient care.
What a Compliant MSO Structure Usually Looks Like
A compliant MSO arrangement generally separates clinical control from non-clinical management:
- The physician-owned professional entity keeps control over all medical decisions and patient care.
- The MSO provides non-clinical support (staffing, payroll, facilities, and admin operations).
- The MSO is paid at fair market value for services—not tied directly to medical fees or clinical volume.
- Agreements are drafted to ensure the MSO cannot exert direct or indirect control over clinical judgment.
If the MSO agreement crosses into clinical decision-making or physician oversight, that’s when you risk violating laws on California medical corporation ownership.
MSO Agreement Pitfalls: ‘Business’ Activities That Are Considered Medical Decisions
In medical practices, there are responsibilities that might seem to be just regular business decisions. And that’s where drafting MSO agreements can get really tricky, especially if you’re unaware of California CPOM rules.
The Medical Board of California clarifies that some responsibilities might seem to be purely administrative. But partaking in these activities gives non-physicians “subtle controls” on what the law actually recognizes as medical decisions, including:
- Hiring, firing, or vetoing physician hires (or clinical staff decisions based on competency).
- Deciding over a physician’s schedule, quotas, visit length, or productivity requirements that affect clinical judgment.
- Controlling access to medical records, charting systems, or limiting physician access to patient data.
- Dictating clinical protocols, treatment pathways, or standards of care.
- Interfering with coding and billing decisions in a way that pressures medical judgment.
- Receiving payment (as an MSO) a percentage of medical revenue/collections, creating fee-splitting risk.
- Termination clauses effectively letting the MSO replace physicians or “take over” operations if the physician disagrees clinically.
This is why proper structuring and compliant agreements become crucial when non-physicians participate in the operations of a medical practice.
Why Our Client Didn’t Know He Can’t Own a Professional Medical Corporation in California
It is a very common experience for us here at Incorporation Attorneys to have people call us after they have gone to Legal Zoom to create the corporations.
We often see clients form business entities using DIY online services without realizing that medical corporations have ownership and control restrictions that do not apply to ordinary businesses. So in this case, it wasn’t surprising that our client wasn’t fully aware of the barriers due to California CPOM rules.
Fortunately, he sought legal review early enough that we could restructure the arrangement before it became a larger compliance problem.
How We Help Clients Fix Legal Issues in Owning a Professional Medical Corporation
Our expert small business lawyers here at Incorporation Attorneys make sure that our clients completely understand the process, restrictions, and all the legal implications of owning a medical practice in California.
When we review non-physician involvement in medical practices, we typically focus on three steps:
- Assess the structure: Ownership, agreements, payment flows, and control terms
- Identify CPOM exposure: Clinical control risks, fee-splitting terms, termination rights
- Restructure compliantly: MSO model, revised agreements, and clean separation of roles
We do understand how pieces move together in forming and owning a corporation, so we can assure our clients that we give them the best legal advice to protect their interests, rights, and investments.
FAQs on Professional Medical Corporation and MSOs in California
What is a professional medical corporation in California?
A professional medical corporation is a special type of entity governed by the Moscone-Knox Professional Corporation Act. It allows licensed physicians and certain other healthcare professionals to provide medical services through a legally recognized business structure—while complying with strict state regulations.
Can a general corporation own a medical practice in California?
No, a general corporation cannot own or control a medical practice in California unless it is a professional medical corporation owned by licensed physicians. Under California laws and the Corporate Practice of Medicine doctrine, only licensed medical professionals can make clinical decisions or profit from medical services.
What services can an MSO provide that aligns with California medical corporation ownership rules?
MSOs can handle non-medical tasks, such as overseeing billing, collections, human resources, marketing, financial management, non-clinical equipment procurement, facility management, and administrative support. They cannot interfere with clinical decisions or control medical aspects of the practice.
Can an MSO be paid as a percentage of medical revenue in California?
No. Percentage-based models can create CPOM and fee-splitting risk depending on the structure, control terms, and how compensation is calculated.
Who should control patient records in an MSO structure?
Clinical access and decision-making authority must remain with licensed physicians, even when an MSO provides administrative support.
Ensure a Compliant California Medical Corporation Ownership, Get Help from Expert Business Attorneys
CPOM rules make medical practice ownership in California particularly strict—and for a good reason. But without expert legal advice, our client was on the verge of wasting his investment and facing legal consequences.
Even if you’re not a licensed physician, you can still participate in the business side of a medical corporation. But you must have the right entity structure and MSO agreement to make sure you’re not violating laws on non-physician ownership of a medical practice.
We can help you structure your business partnership with a physician-owned medical practice as an MSO in California. Call Incorporation Attorney today at +1 (714) 634-4838 to schedule a consultation.
