California’s rules come from the Dental Practice Act, the Moscone-Knox Professional Corporation Act, Dental Board regulation, and case law. SB 351 took effect January 1, 2026. Check the legislation tracker for pending changes.
1. CPOD status
Tier: Strict. The doctrine appears in the practice definition. Under Cal. Bus. & Prof. Code § 1625(e), a person practices dentistry who “manages or conducts as manager, proprietor, conductor, lessor, or otherwise, a place where dental operations are performed.” A lay proprietor of a dental office is therefore practicing dentistry without a license. Unlicensed practice is a crime under B&P § 1626; verify the penalty pinpoint with counsel. The California Supreme Court upheld discipline of a dentist practicing under a lay-controlled corporate structure in Painless Parker v. Board of Dental Examiners, 216 Cal. 285, 14 P.2d 67 (1932). Confirm the reporter pinpoint before relying on it in a filing.2. Other professions
This page covers dentistry only. Medicine, optometry, veterinary practice, and other professions are governed by different statutes and boards, even within the same state. For medical-practice sources, use the MSO-PC Wiki.3. Professional entity forms
Permitted form: dental corporations under B&P Code §§ 1800–1808, governed by the Moscone-Knox Professional Corporation Act (Corp. Code § 13400 et seq.). California has no PLLC. LLCs may not render professional dental services. Specified licensees may hold a minority interest: Corp. Code § 13401.5 permits licensed physicians and surgeons, dental assistants, RDAs and RDAEFs, and registered dental hygienists (including extended-function categories) to hold up to 49% of a dental corporation’s shares in aggregate. The number of these shareholders may not exceed the number of dentist shareholders. Lay investors are not included in the § 13401.5 list. Also confirm before filing:- Naming rules, designator requirements, and any limits tied to licensed owners’ names; several states regulate dental trade names separately
- Board pre-approval or certificates, whether the dental board must act before (or after) the secretary of state will file
- Officer and director licensure, including states that restrict these roles as well as ownership to licensees
4. Fee structure
No statute banning percentage management fees for dental support was located in this research. SB 351, however, reserves coding and billing decisions, payer contracting, and patient-volume control from covered investors. A revenue-linked fee for a PE-backed DSO warrants close review against those restrictions. A flat or cost-plus fee may reduce the concern, but it is not an automatic safe harbor. Verify any design with counsel. For the MSA, test whether a percentage-of-collections fee is permitted under the state’s dental, fee-splitting, referral, tax, and contract rules. Several states expressly restrict revenue-linked dental management fees, and the Aspen Dental settlements imposed related party-specific terms. Flat and cost-plus formulas are not automatic safe harbors; the services, calculation, amount, control rights, and actual payments still matter. See Fee-splitting rules and Set the management fee.5. Noncompetes
SB 351’s Health & Safety Code § 1191 voids noncompete and non-disparagement clauses that bar a provider from competing after termination or from commenting on quality of care, utilization, ethical challenges, or profit-driven strategies (sale-of-business covenants and confidentiality clauses excepted). Verify general California noncompete law with counsel. Federal noncompete policy changed substantially in 2025 and 2026. The FTC’s Non-Compete Rule was vacated, the agency dismissed its appeals in September 2025, and the rule was removed from 16 C.F.R. pt. 910 effective February 12, 2026. State law remains central. Dental enforcement resolutions in New York and California have also restricted noncompetes for the settling parties as a corporate-practice remedy. Verify the current rule, worker, agreement type, transaction context, effective date, and remedy in this state. See the legislation tracker.6. DSO-specific law and registration
California has no DSO registration statute. The operative DSO-facing law is SB 351 (2025), signed October 6, 2025 and effective January 1, 2026. It added Health & Safety Code Division 1.7 (§§ 1190–1191). The law applies to any “private equity group” or “hedge fund” involved in any manner with a physician or dental practice doing business in California, subject to carve-outs for hospitals and health systems, public agencies, and pure debt financiers. It prohibits a covered investor from interfering with professional medical or dental judgment; controlling patient volume, appointment quotas, or provider schedules; or exercising control over patient records, clinical-competency hiring and firing, payer contracting, coding and billing decisions, and the selection of dental equipment and supplies. The Attorney General may seek injunctive relief and recover attorney’s fees. Dental practices are expressly covered. Companion AB 1415 (2025) expands Office of Health Care Affordability transaction-notice requirements to management organizations and PE groups; it is medical-focused, and its application to dental transactions should be verified with counsel. See Register a DSO for the states with true filing regimes.7. Death and transition
B&P § 1625.3 lets a guardian or conservator, executor or administrator, or trustee of a practice-only trust employ licensees and charge for services for up to 12 months from death or incapacity. Section 1625.4 conditions the window on board notification, operation by a licensed dentist in good standing, patient notice within 30 days, no interference with professional judgment, and termination on any earlier sale.8. Practical structuring notes
- Section 1625(e) reaches lessors. An equipment- or premises-lease structure can itself constitute practicing dentistry if it amounts to conducting the place of practice. Review leases under both the statute and the Painless Parker facts.
- For PE-backed groups, compare the management services agreement (MSA) directly with SB 351’s control list. Payer contracting, coding and billing, scheduling, and equipment selection must remain with the dental corporation.
- The § 13401.5 allied-licensee minority (up to 49%) is a genuine equity tool for hygienist and physician partners that most strict states lack.
- No CPOD safe-harbor statute exists. A California management model must stay outside § 1625(e), and enforcement is active.
9. The standing checklist
- Confirmed the permitted entity form for dentistry in this state
- Confirmed whether dental board pre-approval or a certificate is required before filing
- Confirmed whether officers and directors must be licensed dentists
- Confirmed the management fee structure is lawful here, including any restriction on revenue-linked fees
- Clinical carve-out drafted against this state’s current statutory language, including any enumerated control prohibitions
- Transfer restriction and succession documents checked against this state’s death-transition window
- Noncompete provisions checked against current state law
- DSO foreign-qualified before it has employees here
- Any DSO registration, licensure, or disclosure obligation identified and calendared
- Trade-name and advertising-disclosure rules for dental practices checked
10. Sources and where to verify
For the cases and statutes referenced above, see DSO & dental case law and the 51-jurisdiction table. For enacted and pending legislation, see the dental legislation tracker.