California's corporate practice of medicine rule gets most of the attention. New York's is older, tighter, and catches more people out — usually after they have already built the business.
The rule
New York permits only individuals to be licensed to practice medicine. Education Law Article 131 licenses people, not entities. Business Corporation Law § 1507(a) and Limited Liability Company Law § 1207(b) then restrict shares in a professional corporation, and memberships in a PLLC, to those licensed individuals.
The practical result is narrow. The clinical entity must be a professional service corporation, a registered LLP, or a PLLC, and it must be owned by physicians licensed under Article 131.
Physician assistants cannot own it. Registered nurses cannot own it. Nurse anesthetists cannot. Estheticians certainly cannot. Neither can an outside investor, a family member, or the person who actually built the business and found the doctor.
In New York, the person whose name is on the door is frequently not the person who is allowed to own what happens behind it.
Why the MSO structure exists, and where it strains
The near-universal answer is a management services organization. The non-physician owns the MSO, the physician owns the PC, and the MSO provides everything that is not clinical: the lease, the equipment, the staff who are not delivering care, the bookkeeping — and the marketing.
That is a legitimate structure. It is also a structure that New York regulators examine on exactly the question of whether the MSO is really providing administrative services or is quietly running a medical practice.
The marketing is one of the places that question gets answered.
What this changes in the ad account
Advertiser of record. Clinical claims run from the PC. If the ad says "our nurse injectors," the entity paying for that ad should be the entity that employs them.
Pronouns are a compliance surface. "We treat," "our patients," "our results" — each of those is a factual assertion about a relationship. When the MSO makes them, it is asserting a relationship New York does not permit it to have.
Lead ownership. A New York lead form collecting a medical concern, landing in an MSO's CRM, puts patient information with a non-clinical entity. That is a privacy question in every state and a corporate-practice question in this one.
Fee display. If the ads carry prices and the MSO set them, the ad is evidence about who controls clinical fee-setting.
What we do differently for New York practices
We ask for the management agreement before we write anything. Not to read it as lawyers — we are not — but to find out which entity is which, so the copy can be accurate rather than accidentally incriminating.
Then the split is usually:
- PC runs anything naming a treatment, a clinician, a medical outcome, or a price for a medical service.
- MSO runs brand, location, hiring, and non-clinical offers.
In practice this is a smaller change than it sounds. Patients notice nothing. The ad account has two business assets instead of one. And the marketing stops being the easiest available evidence that the structure is a fiction.
The three-state contrast, briefly
| Who may own the clinical entity | |
|---|---|
| New York | Article 131 physicians only. The strictest of the three. |
| California | Professional medical corporation, ≥51% physician-owned; a defined list of allied professionals may hold the rest |
| Florida | No corporate practice statute. A non-physician may own the business entity outright. |
If you operate in more than one of these, the advice that worked in Florida will actively harm you in New York. We have watched it happen: an operator scales a Florida model north, keeps the same ad account and the same copy, and inherits a problem that did not exist in Tampa.
If you run a New York practice and your ads have never been looked at against your structure, it is worth an hour. We will tell you what we see, and you can take it to your healthcare attorney — which, on this subject, you should.