Ownership rules

Physician-owned or MSO-managed with physician oversight

Corporate Practice of Medicine

Strict; physician ownership or MSO structure required

The medical-director angle

Required for most medical spa operations Ownership and the medical-director requirement are usually two sides of the same compliance coin.

What to verify in California

Verify physician supervision requirements and ensure compliance with California's strict corporate practice of medicine doctrine before opening.

Primary source: California Medical Board, California Board of Registered Nursing

General business information for California medical-spa owners, current as of 2026 — not legal advice. State boards update rules often; confirm specifics with the California board (and your own counsel) before you act.

See the full California regulation profile →