That sounds like a stab phlebectomy. Minimally invasive removal of bulging varicosities. I'm A ACNP and have worked with neurosurgery and currently vascular surgery. Yes, you assist in all procedures and operations but the MD should never leave the OR and let the NP perform, only if you are closing the wound. I have started spinal cord stimulator pulse generator insertion with MD not in room but they were either scrubbing in or had already seen the pt and advised me to get started with incision and dissection. It's all experience and the comfort level between you and surgeon. Also you need privileges from medical staff to do anything even with physician supervision. If you like surgery ACNP is the way to go, you get OR time, rounding and clinic, it's nice to follow patients through entire spectrum from clinic until discharge post operativly.