My doc is pa & does internal medicine. he's only doc there. on the wall it says dr. so and so and pa. what does it mean?

Answer: A pa is a physician assistant, and works under the supervision of a licensed dr, he is able to assess and prescribe under the supervision of the doctor.

PA: It likely means that his office / business is listed as a Professional Association which allows certain differences from a legal perspective. It could also mean Physician Assistant although Physician Assistants are not "Dr"s unless they possess a PHD as well. Hope this is helpful.

Dr vs PA: Hi, its hard to know from your question, but i'll try. A PA is a Physician's Assistant. It has its own training program that resembles basic sciences in medical school, and has hands on clinical training before they can work independently. PA's can be doctors if they attain a PhD (doctorate of philosophy). Usually, there is a doctor, somewhere, taking responsibility for a PA in medicine.

Physician Assitant: PA is a physician assistant. In some states ( I believe all) PA practices under an MD/doctor supervision.