This is a licensed acupuncturist’s job. We go through rigorous hours of training, exams for 4 plus years. Not to mention, needling will also affect the immune system. A physical therapist that simply dry needles does not know how to take care of the repercussions that come after a dry needling treatment. Leaving the patient susceptible to getting sick after treatment. Example: their shoulder pain improves, but then patient catches  a virus afterwards. An acupuncturist goes in depth in learning the ins and outs of acupuncture treatment so knows how to mitigate any possible side effects.
All in all, acupuncture should be done by a licensed professional who knows how to avoid any potential harm.