Washington — Med Spa Medical Director
Whether you need a medical director in Washington, who can serve, how the role differs from ownership, and how to pay them without crossing fee-splitting lines — from Washington 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 Washington board and counsel.
In Washington the safe, recognized setup puts a physician (MD/DO) medical director at the top — cosmetic injectables are the practice of medicine and the clinical entity is physician-owned, so an actively-involved physician who supplies the delegation, protocols, and good-faith exams is the clean route, with the RN injecting under that authority. Washington does grant ARNPs full practice authority, so an ARNP can be the prescriber and perform the exam and orders — but whether an ARNP alone can be the sole medical authority for an RN injector with no physician medical director isn't cleanly settled, so plan on a physician medical director and let a Washington healthcare attorney confirm any ARNP-led arrangement before you rely on it. Either way, an RN needs a prescriber in the chain.
Sources: Portrait — Washington Medical Spa Laws (designated medical director described as a licensed physician responsible for medical services) · AANP — Washington = Full Practice (ARNP may diagnose, order, prescribe) — the NP-only-medical-director edge remains unsettled · Verified 2026-06-26.
The medical director is clinically responsible for the practice; the owner holds the business. In Washington 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 Washington you can absolutely build and own an aesthetics business as an RN — the answer is structure, not a flat no. Washington follows the corporate-practice-of-medicine doctrine (an implied common-law ban from the Morelli v. Ehsan case) and treats cosmetic injectables as the practice of medicine, so the entity that delivers the medicine has to be a physician-owned professional corporation or PLLC. Because Washington grants nurse practitioners (ARNPs) full practice authority, an ARNP can own a professional entity for services within ARNP scope. As an RN you own the business through a management company (an MSO you control) that contracts the clinical entity, and you inject under delegation. Net: an RN can own and run a Washington med spa with the right setup — have a Washington healthcare attorney paper the MSO/PC separation.
Sources: Permit Health — Washington CPOM Guide (implied common-law ban, Morelli v. Ehsan; clinical entity 100% physician-owned PC/PLLC) · Portrait — Washington Medical Spa Laws (qualified NPs can own/operate a med spa; physician medical-director nuance) · 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 Washington healthcare attorney paper both before you sign.
The free 17-question assessment returns a Washington-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. Washington 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 Washington 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 Washington 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 Washington.