Can a non-physician own a med spa in Maryland?

Short answer
The cited rules do not settle this — they establish only that a Maryland professional corporation may render services within a single profession, and that only Board licensees may practice medicine; they set no ownership test for non-physicians.

Maryland confines a professional corporation to a single profession and to the professional service named in its articles, and its Medical Practice Act contemplates a physician practicing within or as a professional corporation — so the corporate form is available, but it is not a route to mixing a medical practice with an unrelated business. Maryland’s self-referral law is the financial-arrangement rule on record: except as the section itself provides, a health care practitioner may not refer a patient, or direct an employee or contractor to refer a patient, to a health care entity in which the practitioner or the practitioner with immediate family owns a beneficial interest, in which immediate family owns 3 percent or more, or with which any of them has a compensation arrangement — defined as any agreement or system involving any remuneration between the practitioner or an immediate family member and a health care entity. Whether a particular med spa owner is a “health care entity” under that law, and whether any of its exceptions apply, is not surveyed by these claims.