Registered nurses (RNs)
Yes, under physician delegation and supervision
Nurse practitioners & physician assistants
Require physician collaboration/supervision for injections
Supervision & the medical director
Required for medical spa operations
The exam requirement
Required; in-person preferred, telehealth conditional
What to verify in Maryland
Verify medical director credentials and ensure physician supervision protocols are documented in writing.
Primary source: Maryland Board of Physicians; Board of Nursing
General business information for Maryland medical-spa owners, current as of 2026 — not legal advice. State boards update rules often; confirm specifics with the Maryland board (and your own counsel) before you act.