California — Med Spa Medical Director
Whether you need a medical director in California, who can serve, how the role differs from ownership, and how to pay them without crossing fee-splitting lines — from California board and statutory sources, reviewed by Faisal Darwiche, NP.
Last reviewed 2026-06-27 · Faisal Darwiche, NP. General guidance, not legal advice — confirm with your California board and counsel.
In California aesthetics, plan on a physician medical director — it's practicing medicine, and the Medical Board treats cosmetic injectables as physician-controlled care. The medical director is the licensed physician who performs or delegates the good faith exams, writes the standardized procedures, sets clinical policy, and stays genuinely involved — California is aggressive about arrangements where a physician is paid a stipend and never touches a patient, so the role has to be real. For an RN this is non-negotiable: you need a physician as both your prescriber and your medical director. AB 890 adds limited independent NP pathways, but because the clinical entity must still be a physician-majority Medical Corporation and aesthetics is the practice of medicine, the conservative, sourced position today is a physician medical director — have a California healthcare attorney confirm any NP-led setup.
Sources: Medical Board of California — Cosmetic Treatments FAQ + corporate-practice guidance · Bay Legal — physician medical director required; NP cannot own a standalone med-spa medical corporation even under AB 890 · Verified 2026-06-26.
The medical director is clinically responsible for the practice; the owner holds the business. In California they can be the same person or two different people. The common structure for non-physician owners separates the two: a management company (the business) contracts a physician-led clinical entity (the medicine). The medical director supplies the exams, orders, and protocols; the owner runs marketing, staffing, and facilities.
In California you absolutely can own and run an aesthetics business as an RN or NP — the answer is the structure, not a flat no. California enforces the corporate practice of medicine strictly and treats injectables as practicing medicine, so the clinical entity has to be a physician-owned California Medical Corporation (at least 51% owned by licensed physicians; allied professionals like RNs/NPs can hold up to 49%). You own the business through a separate management company (MSO) you control — marketing, billing, staffing, facilities, equipment — which contracts with that physician-owned PC through a Management Services Agreement at fair market value (a flat or FMV fee, never a percentage of medical revenue, because fee-splitting is prohibited). The physician genuinely controls the medicine; you genuinely control the business. Get this papered by a California healthcare attorney — CA scrutinizes arrangements that exist only on paper harder than almost any state.
Sources: Cal. Bus & Prof Code §2400 (CPOM prohibition) + Medical Board of California corporate-practice guidance · Cal. Corp. Code §13401.5 (Moscone-Knox; 51% physician ownership of a medical corporation) · Cal. Bus & Prof Code §2052 (unlicensed practice of medicine) + Bay Legal med-spa MSO/PC structure guide · Verified 2026-06-26.
Compensate the medical director at fair-market-value for the clinical work they actually do — a flat retainer or hourly rate, documented. Paying them a percentage of treatment revenue is the classic fee-splitting trap. Keep the management fee (to the business entity) and the medical-director fee (for clinical oversight) as separate, defensible line items, and have a California healthcare attorney paper both before you sign.
The free 17-question assessment returns a California-specific plan: the right entity structure for your credential, the medical-director and good-faith-exam path, and your exact next action. 7 minutes, no card. Built by Faisal Darwiche, NP.
Yes. California treats cosmetic injectables as the practice of medicine, so a physician medical director is the standard requirement — they perform or delegate the good faith exam, author the protocols, and stay genuinely involved. A nominal "paper" director is a compliance risk.
In California the medical director is the licensed physician (MD/DO) who is clinically responsible for the practice — performing or delegating exams, signing standardized procedures, and being reachable. The role is clinical oversight, not a signature for hire; the involvement has to be real and documented.
Medical-director compensation in California should be fair-market-value for the actual clinical work — a flat or hourly fee, not a percentage of medical revenue. Paying a cut of treatment revenue risks illegal fee-splitting. Structure the management fee and the medical-director fee separately, and have counsel paper both.
Yes — with the right structure. An RN owns the business side (typically an MSO), and the clinical entity is physician-led with a medical director who supplies the exams and orders. The RN injects under that delegation. Your attorney papers the exact entity for California.