Who can inject
MD, DO, NP, PA, RN under physician supervision
Registered nurses (RNs)
Yes, under physician delegation; specific scope defined by board rules
Nurse practitioners & physician assistants
NP/PA may inject under collaborative agreement with physician; independent practice not permitted
The exam that makes it legal
Required; in-person exam by physician before treatment 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 Tennessee
Ensure a Tennessee-licensed physician medical director is in place and that all RN/NP/PA injectors have signed collaborative agreements or delegation protocols.
Primary source: Tennessee Medical Board and Board of Nursing
General business information for Tennessee medical-spa owners, current as of 2026 — not legal advice. State boards update rules often; confirm specifics with the Tennessee board (and your own counsel) before you act.