The question occasionally arises as to what constitutes a proper venue in a medical malpractice action. The standards are the same as those applicable to all other actions stemming from personal injuries or wrongful death, and they are controlled by the provisions of CPLR 503. However, a circumstance sometimes arises in medical malpractice actions where venue is placed based upon a physician's principal office. A recent decision by the Court of Appeals addressing that circumstance provides the opportunity to examine the venue rules as they apply in malpractice actions.