California’s med spa industry continues to surge, attracting physicians, nurses, and business entrepreneurs alike. But in this state, launching a medical spa isn’t as simple as filing an LLC and signing a lease. The Corporate Practice of Medicine (CPOM) doctrine draws a hard line between who can practice medicine and who can profit from it.
That doesn’t mean non-physicians are locked out — far from it. With the right structure and agreements in place, investors and entrepreneurs can own and operate the business side of a medical spa legally. The key lies in a compliant Management Services Organization–Professional Corporation (MSO–PC) arrangement.
This article breaks down, in practical detail, how to structure and document a compliant med spa under California law — including the essential contracts, control provisions, and ownership mechanics that make the MSO–PC model work.
Step 1: Understand the Legal Foundation — CPOM and the Role of the Physician
California’s Corporate Practice of Medicine prohibition prevents non-physicians from directly owning or controlling a business that provides medical services. Only licensed physicians (MDs or DOs) can own a Professional Corporation (PC) that offers medical treatments such as Botox, fillers, or laser procedures.
The physician must hold at least 51% ownership of the PC if co-owned with an allied healthcare profession (otherwise 100% ownership) and maintain complete authority over all clinical matters — from patient care to treatment protocols. This ensures that medical judgment remains independent and insulated from business influence.
Non-physicians, however, can still participate through a separate entity — the Management Services Organization (MSO) — which manages the non-medical side of the business.
Step 2: Forming the Two Entities — PC and MSO
A compliant med spa structure begins with two distinct entities:
Professional Corporation (PC) – Formed and owned by a licensed physician. The PC provides all medical services and employs or contracts with medical staff.
Management Services Organization (MSO) – Formed and owned by non-physicians, investors, or other business partners. The MSO handles administrative and operational functions such as:
Marketing and branding
Real estate and equipment leases
Payroll, accounting, and HR
Non-clinical staff management
Vendor contracts
Each entity operates independently but cooperatively under a Management Services Agreement (MSA) — the contract that ties the structure together.
Step 3: The Management Services Agreement (MSA)
The MSA is the linchpin of the MSO–PC structure. It governs how the MSO provides business support to the PC, and how the PC compensates the MSO for those services.
A properly drafted MSA should include:
Scope of Services – A clear delineation of non-medical functions (e.g., marketing, HR, leasing). The MSO must never influence medical decisions, staffing of medical professionals, or patient treatment.
Management Fee – The MSO is typically paid a flat fee, a tiered fee, or a percentage of gross revenue (not net profit) to avoid any implication of sharing in medical income.
Term and Termination – Set for a defined period, often with renewal terms, and allowing termination for cause or mutual agreement.
Intellectual Property and Branding – The MSO often owns trademarks, websites, and marketing materials licensed to the PC.
Compliance Covenant – Both parties affirm adherence to CPOM laws and California’s Medical Practice Act.
This agreement ensures the physician maintains full medical control, while the MSO lawfully operates the business infrastructure.
Step 4: Directed Share Transfer Agreement (DSTA)
One of the more nuanced but vital documents in a compliant structure is the Directed Share Transfer Agreement (DSTA) — sometimes called a “friendly stock transfer agreement.”
This agreement gives the MSO a pre-negotiated right to direct the transfer of the PC’s shares to another licensed physician if the current physician-owner leaves, becomes incapacitated, or defaults under the MSA.
The DSTA protects the business continuity of the med spa without violating CPOM. It does not give the MSO ownership or voting rights in the PC but ensures that control can seamlessly transition to another physician chosen by the MSO (subject to regulatory compliance).
Properly structured, the DSTA allows the MSO to maintain business stability while the PC’s medical control remains squarely within the hands of licensed doctors.
Step 5: Additional Agreements to Keep the Structure Legal
Beyond the MSA and DSTA, a compliant MSO–PC arrangement often includes:
Space Lease Agreement – The MSO may own or lease the premises and sublease the clinical space to the PC. The lease must be at fair market value to avoid claims of illegal fee-splitting.
Equipment Lease – The MSO can lease medical devices or equipment to the PC for a fixed monthly amount.
Administrative Services Agreement – Sometimes used to further define non-medical staffing, scheduling, and bookkeeping services.
Brand License Agreement – If the MSO owns the brand, it licenses its use to the PC, preserving brand integrity while maintaining regulatory separation.
Each contract must withstand scrutiny under CPOM and anti-kickback regulations. The goal is always clear separation: the MSO runs the business, the PC practices medicine.
The DSTA protects the business continuity of the med spa without violating CPOM. It does not give the MSO ownership or voting rights in the PC but ensures that control can seamlessly transition to another physician chosen by the MSO (subject to regulatory compliance).
Properly structured, the DSTA allows the MSO to maintain business stability while the PC’s medical control remains squarely within the hands of licensed doctors.
Step 6: Maintain Compliance in Daily Operations
After formation, compliance is an ongoing obligation. Key operational practices include:
The physician must supervise all clinical staff, including nurses and injectors.
All patient payments for medical services must flow to the PC, not the MSO.
The MSO should only receive its agreed management fee, not a share of medical profits.
The PC’s medical staff must be employed or contracted directly by the physician or the PC — never by the MSO.
Violating these principles can trigger disciplinary action from the Medical Board of California and expose the business to civil or criminal penalties for unlicensed practice of medicine.
Step 7: Work with Experienced Legal Counsel
Building a compliant med spa in California isn’t just about choosing the right structure — it’s about drafting and executing the right documents that reflect both the letter and the spirit of the law.
At MedPro Legal, we structure MSO–PC relationships tailored to your business goals while ensuring full compliance with California’s Corporate Practice of Medicine doctrine. Our team drafts and negotiates:
Management Services Agreements
Directed Share Transfer Agreements
Lease and Equipment Agreements
Intellectual Property and Licensing Contracts
Employment and Independent Contractor Agreements
We also assist with medical board filings, formation documents, and long-term compliance strategy — helping you launch and sustain a legally sound, profitable medical spa.
Final Thoughts
Opening a medical spa in California is more complex than most realize — but with the right MSO–PC structure, it’s entirely achievable. The balance between business opportunity and medical integrity isn’t just a legal necessity; it’s the foundation of a sustainable practice.
The entrepreneurs who succeed in this space are those who respect the boundaries of medicine while mastering the business that supports it. With expert guidance, you can build a compliant med spa that thrives under California law — and stands out in a competitive industry built on trust and safety.
