It depends on what happened and who was involved. The answer might be both.
Pennsylvania law determines who faces legal liability for a medical error constituting malpractice. An error by an individual doctor, nurse, or other medical team member could saddle that individual with liability, but it could also place liability on the individual’s employer, or the owner of the facility where the error occurred, or on a third party.
One of the most important jobs of any medical malpractice attorney is to assess the facts of a case to identify all parties who may have legal liability for harm done to a patient by a medical mistake.