Registered nurses (RNs)
Yes, under physician delegation and supervision
Nurse practitioners & physician assistants
NP/PA may inject under physician collaboration; independent practice limited
Supervision & the medical director
Required for RN/LPN injectors; physician supervision mandatory
The exam requirement
Required; in-person or telehealth permitted
What to verify in Maryland
Establish clear physician delegation protocols and ensure medical director oversight for all injector staff.
Primary source: Maryland Medical Board; 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.