Do you need an MSO for your ABA practice in New York?

New York's corporate-practice doctrine

New York enforces a long-standing prohibition on the corporate practice of the licensed professions, drawn from the Education Law, under which offering a licensed profession without a license is unlawful and a general business corporation may not practice a licensed profession or employ licensed professionals to do so. The mechanism New York uses is the professional entity: a licensed service must be delivered through a professional corporation, a professional service limited liability company, or a limited liability partnership, and those entities may be owned only by licensed members of the profession (N.Y. Bus. Corp. Law art. 15; N.Y. Ltd. Liab. Co. Law art. 12). For most healthcare fields this is the familiar corporate-practice line. For ABA, New York goes a step further, because behavior analysis is itself a licensed profession.

ABA is a licensed profession in New York

It is, and that is the decisive fact. Article 167 of the Education Law, enacted in 2013 and amended in 2014, established and defined the practice of applied behavior analysis and created two credentials, the Licensed Behavior Analyst and the Certified Behavior Analyst Assistant, effective July 1, 2014, administered by the New York State Education Department's Office of the Professions (N.Y. Educ. Law art. 167; NYSED Office of the Professions). New York requires its own LBA credential, separate from and in addition to BCBA certification, and a 2022 change created a streamlined pathway for BCBAs, but BCBA certification alone is not sufficient to practice as an LBA. Because ABA is a licensed profession, the professional-entity ownership rule applies directly to ABA businesses.

Who is allowed to own the clinical entity

The answer is narrow: only Licensed Behavior Analysts. The State Education Department is explicit that a professional corporation or professional service limited liability company that offers applied behavior analysis may be owned only by persons licensed in the same profession under Article 167, and the Business Corporation Law permits a professional corporation to issue shares solely to individuals licensed to practice the profession the corporation is authorized to practice (NYSED Office of the Professions; N.Y. Bus. Corp. Law § 1507). There is no minority allowance for non-licensees and no passive-investor carve-out. A non-licensee, whether a private equity sponsor, a non-clinical co-founder, or a management company, cannot hold equity in the ABA clinical entity. That is what makes the management-company structure necessary for any outside capital, and it places New York alongside Illinois as one of the two strictest ABA-ownership states in the country.

The diagnosis-and-prescription gate

New York adds a second structural feature that shapes the two ABA practice archetypes: ABA is delivered pursuant to a diagnosis and a prescription or order from a qualifying professional, and Licensed Behavior Analysts are not authorized to diagnose or prescribe (N.Y. Educ. Law § 8803; NYSED guidance on ABA service delivery). The qualifying professionals who may diagnose and order ABA include physicians, nurse practitioners, psychologists, and certain other licensees. This creates the familiar fork. An ABA-only practice, owned by LBAs, depends on an outside qualifying professional to diagnose and prescribe before it can treat. A practice that wants diagnosis in-house must bring in a physician or psychologist, and because New York restricts each professional entity's ownership to its own profession, a multi-disciplinary structure, typically separate professional entities or a jointly held professional corporation where the law allows, is needed to hold both the behavior-analysis and the diagnostic services. Which archetype you run determines how many professional entities you operate and where the diagnostic gate sits.

What a management services organization actually is

An MSO is a separate company that provides the non-clinical side of a practice to a clinical entity it does not own. The clinical entity employs the licensed clinicians and holds the professional standing. The MSO employs everyone else and runs the business. A management services agreement ties them together, and the clinical entity pays the MSO a fee. In New York, the clinical entity must be owned entirely by Licensed Behavior Analysts, and the MSO is where any non-licensee capital lives. Crucially, the MSO must not hold equity in the ABA professional entity, because ownership is restricted to licensees.

Why the MSO is the only route for outside capital here

Because New York restricts ownership of the ABA professional entity to Licensed Behavior Analysts, a non-licensee cannot take any equity in the practice. If a non-licensee founder, operating partner, or private equity sponsor wants an economic stake, the compliant path is to own a management company that contracts with the LBA-owned clinical entity for a fair-market-value fee. The Licensed Behavior Analysts hold the ABA business outright, and the enterprise value accumulates in the MSO. This is the same clinician-owned-PC-plus-investor-owned-MSO structure used in dermatology and dental roll-ups, and its durability in ABA is being tested as licensure spreads and scrutiny rises. See the practice expansion and sale page for the transaction view.

The material-transaction notice requirement

New York layers a transaction-notice requirement on top of ownership. Article 45-A of the Public Health Law, effective August 1, 2023, requires a health care entity that is party to a material transaction to give the New York State Department of Health written notice at least 30 days before closing, and the Department shares the notice with the Office of the Attorney General and posts a summary for public comment (N.Y. Pub. Health Law §§ 4550-4552). Material transaction is defined broadly, reaching mergers, acquisitions of assets, affiliations, and the formation of management services organizations, and a management services organization that provides substantially all administrative services to a practice is itself a covered health care entity. A monetary threshold applies, cumulated across related transactions, and failure to notify carries civil penalties. Whether a given ABA practice or its MSO is a covered health care entity turns on the statute's definitions, so any larger New York ABA transaction, especially one involving an MSO or outside capital, should be screened against Article 45-A.

How New York would evaluate your arrangement

In New York the questions are concrete because the ownership rule is explicit. These are the factors that decide whether a structure complies.

Fee-splitting and how to pay an MSO

New York treats fee-splitting with unlicensed parties as professional misconduct, so how the MSO is paid matters (N.Y. Educ. Law § 6530(19)). A fixed or cost-plus management fee set to fair market value and traceable to documented services is the safest, because it reflects payment for real administrative work rather than a share of the practice's professional income. A percentage-of-revenue fee is riskier and, if used at all, should reflect the fair value of actual services rather than function as a way for a non-licensee to participate in professional fees. For New York Medicaid clients, the federal anti-kickback statute applies on top (42 U.S.C. § 1320a-7b(b)). Set the fee to fair market value and document the services behind it.

Keeping clinical control on the right side of the line

The structure holds only while the MSO stays on the business side, holds no equity in the ABA professional entity, and the Licensed Behavior Analysts keep genuine ownership and authority over clinical decisions, supervision, and professional judgment. In New York the ownership line is explicit, so an arrangement that leaves a non-licensee with equity or effective control of the clinical entity is not a gray area; it is non-compliant. Write the management services agreement so that ownership and clinical control sit entirely with the Licensed Behavior Analysts, and so that the MSO's role is administrative support, not clinical direction.

How this connects to the rest of your compliance stack

Ownership is one layer. Three others interact with it directly, and getting the MSO right does not resolve them:

• Payor and Medicaid disclosure. Your real ownership stack, including any MSO, is disclosed at enrollment and revalidation regardless of how it looks on paper (42 C.F.R. Part 455). See Medicaid and insurance mandates.
• Facility licensure. A change in the ownership or service model can affect facility and records obligations. See facility licensure and HIPAA.
• Entity structure. Forming the LBA-owned professional entity, and any separate diagnostic entity, is its own analysis. See entity structures for ABA practices.

Setting it up in New York: the sequence

1. License the practitioners and owners. Behavior analysts licensed as LBAs through NYSED, and, critically, every owner of the ABA professional entity must be an LBA.
2. Form the professional entity. A PC, PLLC, or LLP owned entirely by Licensed Behavior Analysts, not a general business corporation or ordinary LLC.
3. Arrange the diagnostic pathway. Secure diagnosis and prescription from a qualifying professional, structuring any in-house diagnostic service as its own properly owned professional entity.
4. Move non-licensee capital to an MSO. A standard LLC or corporation that contracts with the clinical entity for a fair-market-value fee and holds no equity in it.
5. Screen any transaction for the DOH notice. Check the material-transaction thresholds under PHL Article 45-A before closing.

New York MSO variables at a glance

Frequently asked questions