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
Requires physician collaboration/supervision for injections
The exam that makes it legal
Required; in-person preferred, telehealth varies by board interpretation 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; facility-specific training protocols recommended
What to verify in Maryland
Verify with Maryland Board of Physicians whether your proposed ownership/delegation model complies with current guidance on RN and NP/PA scope.
Primary source: Maryland Board of Physicians
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.