Ownership rules
Physician-only or physician-controlled MSO; non-physicians cannot own
Corporate Practice of Medicine
Strict; Corporate Practice of Medicine enforced; physician ownership or MSO with physician control required
The medical-director angle
Required; physician must be on-site or available for immediate consultation Ownership and the medical-director requirement are usually two sides of the same compliance coin.
What to verify in Illinois
If you are not a physician, establish a physician-owned or physician-controlled MSO structure; verify that your medical director meets on-site or availability requirements under Illinois State Medical Practice Act.
Primary source: Illinois State Medical Board; Illinois Department of Financial and Professional Regulation (IDFPR)
General business information for Illinois medical-spa owners, current as of 2026 — not legal advice. State boards update rules often; confirm specifics with the Illinois board (and your own counsel) before you act.