California Corporate Practice of Medicine for Med Spas

California’s Corporate Practice of Medicine doctrine prohibits non-physicians from owning or controlling a medical practice, and California enforces the doctrine more strictly than most other CPOM states.

The doctrine rests on a stack of California statutes (Cal. Bus. & Prof. Code §§ 2052 and 2400, plus the Moscone-Knox Professional Corporation Act at Cal. Corp. Code § 13400 et seq.) and is enforced by the Medical Board of California. Medical spas sit squarely inside CPOM analysis because California classifies injectables, lasers, IV therapy, and similar services as the practice of medicine. The classification turns on the use of prescription drugs and medical devices, not on the cosmetic framing of the service.

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What CPOM Means in California

California’s CPOM doctrine prohibits corporations and unlicensed entities from practicing medicine and extends that prohibition to lay control over medical decisions.

The doctrine is not codified in a single statute. It rests on two Business and Professions Code sections and on the Medical Board of California’s interpretive authority.

Two California statutes anchor CPOM. Cal. Bus. & Prof. Code §2052 (unauthorized practice of medicine) makes the unauthorized practice of medicine a crime and creates corporate-agent liability for individuals who aid or abet the practice. Cal. Bus. & Prof. Code §2400 (corporate practice prohibition) codifies the prohibition by stating that corporations and other artificial legal entities have no professional rights, privileges, or powers in the practice of medicine.

The Medical Board of California treats the corporate practice prohibition as extending well beyond formal corporate ownership. The Board’s interpretation extends to non-licensed entities that exert effective control over clinical operations and to arrangements that delegate clinical decision-making to lay management. This expansive interpretation is what makes California stricter than many other CPOM states. The Board treats the substance of an arrangement as more important than the form.

For the national doctrinal treatment that frames California’s position among U.S. jurisdictions, see our MSO-PC framework overview.

Why Med Spa Services Trigger CPOM Analysis

Medical spa services trigger CPOM analysis because California classifies them as the practice of medicine rather than cosmetic services. The classification turns on what the service involves rather than how it is marketed.

What Counts as the Practice of Medicine

California classifies injectable neurotoxins, dermal fillers, laser treatments, IV therapy, hormone therapy, medical weight loss, and prescription topical regimens as the practice of medicine. Services involving prescription drugs and services involving medical devices at medical fluence levels are the practice of medicine regardless of the setting in which they are delivered.

The Medical Board of California’s guidance on medical spas is explicit: using prescription drugs and medical devices for cosmetic purposes constitutes the practice of medicine.

What Sits Outside CPOM

A narrow set of aesthetic services sits outside CPOM analysis. Facials, microdermabrasion under cosmetology rules, manual extractions, and non-medical aesthetic treatments performed by licensed estheticians under the Board of Barbering and Cosmetology fall outside the practice of medicine.

The line is narrow. Most operators who offer a meaningful service mix (any injectables, any prescription topical, any laser at medical fluence levels) cross into the practice of medicine and must structure for CPOM. Practices that offer only BBC-scope services operate under cosmetology rules rather than medical practice rules.

Ownership, Revenue, and Control Restrictions

California CPOM restricts three layers of practice operation. Non-physician founders evaluating California med spa ownership need to understand all three because a structure that satisfies one layer can still fail the others.

Ownership: Who Holds Equity

Non-physicians cannot directly own a California medical practice. Licensed physicians can. Cal. Corp. Code §13401.5(a) allows licensed allied healthcare professionals to hold up to 49 percent of shares, but they cannot outnumber physician shareholders. Detailed entity rules sit on the California PC formation page.

Revenue: Fee-Splitting Constraints

California CPOM intersects with California’s fee-splitting prohibition under Cal. Bus. & Prof. Code §650. Revenue arrangements tied to referrals or patient volume can violate both. Many California practices structure management fees as fixed monthly amounts rather than percentage-of-revenue arrangements.

Control: Clinical Decisions Stay With Physicians

The management services agreement can allocate administrative authority to the MSO; it cannot allocate clinical decision-making. Standing orders, treatment protocols, patient-care decisions, hiring and firing of clinical staff, and the standard of care delivered at the practice must remain with the licensed physician engaged.

The MSO-PC Structural Answer

Two separate entities sit alongside each other: a Professional Corporation, owned by a licensed physician, that delivers care, and a Management Services Organization, owned by the operators or investors, that delivers administrative services to the PC. A written management services agreement ties the entities together.

The deep treatment of MSO-PC mechanics sits on the MSO-PC framework page. This section covers the California-specific elements.

The Professional Corporation Side

The PC must be formed under the Moscone-Knox Act at Cal. Corp. Code §13400 et seq. Articles must include a Moscone-Knox-specific statement. Medical Corporations rendering services through MBC-licensed physicians do not need a separate MBC certificate of registration under §13401(b).

The MSO Side

Typically formed as an LLC owned by the non-physician operators or investors. Provides administrative services to the PC under a written MSA: billing, marketing, HR, facilities, IT, equipment leasing, vendor management. Does not deliver medical services. Does not employ treating physicians.

MSA Substantive Constraints

Compensation flowing from PC to MSO must be commensurate with services delivered. The agreement cannot allocate clinical decision-making or structure fees in a way that gives the MSO effective control over medical decisions. Fixed monthly fees are the cleanest structure.

Why You Cannot Use a PLLC

California prohibits Professional Limited Liability Companies for healthcare services under Cal. Corp. Code §17701.04(e). Out-of-state founders frequently arrive planning to use a PLLC; California does not allow it. LLCs are available only on the MSO side.

Allied-Professional Shareholders

NPs, PAs, RNs, and other allied healthcare professionals on the §13401.5(a) qualifying list can hold shares up to the 49 percent cap. They cannot outnumber physician shareholders. The supervisory framework that runs alongside shareholder eligibility goes through the collaborating physician role.

How MedSpire Helps Structure Your California Practice

Identifying that your California med spa needs MSO-PC compliance is one step. Forming both entities correctly, drafting the management services agreement, and maintaining the structure as the practice grows is the work that makes compliance real.

1. Discovery and Structure Assessment

A discovery call to map your services, ownership composition, capital stack, and growth plans. We identify whether you need a new PC and MSO formation or remediation of an existing structure.

2. MSO-PC Formation

We deliver the Professional Corporation formation under Moscone-Knox with a our licensed physicians. We can provide guidance on the Management Services Organization formation under California LLC law owned by the non-physician founders.

3. MSA

We finalize the details of the management services agreement between the MedSpire PC and your MSO to the specific clinic and services details. We work with you to implement the MSA such as bank accounts, insurance, and documentation of the arrangement.

4. Ongoing Compliance Support

As you add service lines, enter new states, or take on institutional capital, we evaluate the structure against current CPOM and the 2026 SB 351 and AB 1415 layers, and adjust the MSA and physician network accordingly.

2026 Reinforcement Under SB 351 and AB 1415

California enacted two laws in 2025 that took effect on January 1, 2026, reinforcing CPOM enforcement against private equity and hedge fund involvement in physician practices. Practices with institutional capital, practices contemplating a sale, and operators whose MSAs were drafted before the new statutes took effect need to re-examine their structures.

What SB 351 Adds

SB 351 expressly extends California’s CPOM prohibitions to any situation in which a private equity group or hedge fund is involved in any manner with a physician or dental practice. The law authorizes the California Attorney General to enforce CPOM directly, which is a new enforcement mechanism on top of the Medical Board’s existing authority.

SB 351 also voids non-compete and non-disparagement clauses between PE-affiliated entities and physicians or dentists.

What AB 1415 Adds

AB 1415 expands OHCA’s pre-transaction notice requirements to cover private equity groups, hedge funds, management services organizations, and newly formed entities (NewCos) created to enter into healthcare transactions. Noticing entities must file at least 90 days before closing a material change transaction.

PC formation alone typically does not trigger AB 1415; MSO formation paired with PE or hedge fund capital often does.

Frequently Asked Questions

Is California a CPOM state?

Yes. California is one of the stricter CPOM states in the country. Cal. Bus. & Prof. Code §2052 prohibits the unauthorized practice of medicine and creates corporate-agent liability, and §2400 codifies the corporate practice prohibition. The Medical Board of California enforces both statutes, and California courts treat the prohibition as extending to non-licensed entities and lay-controlled medical practices. The doctrine reaches the substance of operational control, not just the form of corporate ownership.

Can a non-physician own a med spa in California?

Not directly. California CPOM prohibits non-physicians from owning the entity that delivers medical services. Non-physician founders structure under MSO-PC: a Management Services Organization (which the founder can own) provides administrative services to a Professional Corporation (which must be owned by a licensed physician) that delivers care. The non-physician founder owns the MSO and contracts with the PC through a management services agreement. The structure is well-established in California.

Can an NP own a med spa in California?

Partially. Cal. Corp. Code §13401.5(a) allows licensed nurse practitioners (and other listed allied healthcare professionals) to hold shares in a Medical Corporation up to 49 percent of total shares. Allied-professional shareholders cannot outnumber physician shareholders. An NP can be a 49 percent shareholder but cannot be the sole or majority owner of a California Medical Corporation. Full Practice Authority under AB 890 does not change the Moscone-Knox ownership rules; it affects the supervisory framework, not the corporate structure.

Can I use a PLLC for my California med spa?

No. California prohibits Professional Limited Liability Companies for healthcare services under Cal. Corp. Code §17701.04. The Professional Corporation is the required entity for delivering medical services in California. Out-of-state founders frequently assume a PLLC is an option because their home state allows it; California does not. LLCs and other entity types are available for the MSO side, where they do not deliver medical services.

Will SB 351 affect my existing California med spa?

It depends on the capital structure. SB 351 (effective January 1, 2026) reinforces CPOM restrictions on private equity and hedge fund involvement in physician practices and authorizes the California Attorney General to enforce them. Practices with PE or hedge fund capital should evaluate their management services agreement, physician compensation structures, and any non-compete or non-disparagement clauses against SB 351. Practices without institutional capital face indirect effects through the tightened MBC enforcement posture signaled by the new law.

What happens to my management services agreement under AB 1415?

AB 1415 does not invalidate existing MSAs. It adds pre-transaction notice requirements to the California Office of Health Care Affordability for material change transactions involving private equity, hedge funds, MSOs, and newly created entities. Practices entering new MSAs or restructuring existing ones should evaluate AB 1415 notice obligations at least 90 days before closing. The notice obligation extends to MSO acquisitions and NewCo formations that were previously outside OHCA’s jurisdiction.

How does California CPOM compare to Texas CPOM?

Both are strong CPOM states with different mechanics. California codifies CPOM in statute through § § 2052 and 2400 and reinforces it through Moscone-Knox PC requirements and the §13401.5(a) allied-professional shareholder rules. Texas CPOM rests primarily on common law and Attorney General opinions, including Op. JM-438 from 1986, and is enforced through the Texas Medical Board. California’s 2026 SB 351 layer specifically targets PE and hedge fund involvement; Texas has no comparable recent legislation aimed at the same structures.

Is Florida a CPOM state like California?

No. Florida is not a CPOM state. Florida permits non-physician ownership of medical practices subject to general business law and licensure requirements. This is the inverse of California’s structure: a med spa structured for Florida operations using a general LLC with non-physician owners cannot operate the same way in California without restructuring under MSO-PC. Multi-state operators expanding from a non-CPOM state into California typically need to form a separate California Professional Corporation and a California MSO before delivering care in the state.

Can I retroactively fix my California med spa CPOM structure?

Yes, but it costs more than getting it right at launch. Retroactive restructuring typically involves forming a Medical Corporation under Moscone-Knox, transferring clinical operations and physician employment to the PC, drafting a compliant management services agreement, and rebuilding the operational handoffs between the MSO and the PC. A compliance audit is the practical starting point. The work is slower than initial structuring but materially less expensive than defending an MBC enforcement action or absorbing payer-audit recoupment.

What happens if I violate CPOM in California?

Enforcement consequences range across disciplinary, financial, and criminal exposure. The Medical Board of California can pursue disciplinary action against physicians, including stayed revocation with probation, suspension, or revocation. SB 351 authorizes the California Attorney General to enforce CPOM directly against PE-affiliated entities. Voided contracts and payer-audit recoupment of paid claims are common financial consequences. Criminal exposure under §2052 attaches to corporate agents involved in the unlicensed practice of medicine in some circumstances.

Evaluate Your Practice Against California CPOM

California’s CPOM doctrine is the most consequential structural constraint on med spa operations in California. The operator’s task is to structure the practice correctly before launch and to keep the management services agreement, the physician ownership of the PC, and the clinical decision-making clearly separated from administrative operations. Current as of August 2026, reflecting SB 351 and AB 1415, both effective January 1, 2026. Next review: February 2027. For the rest of the cluster, start at the California med spa compliance hub.

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