Who can inject
MD/DO, NP/PA under physician supervision, RN under physician delegation
Registered nurses (RNs)
Yes, under physician delegation and supervision
Nurse practitioners & physician assistants
Require physician collaboration/supervision for injections
The exam that makes it legal
Required; in-person preferred, telehealth conditional A valid order or good-faith exam by an authorized provider is what makes an injection lawful — not simply who holds the syringe.
Training expected
No state-mandated injector training beyond licensure.
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.