CODE OF VIRGINIA CHIROPRACTOR, NURSE PRACTITIONER, OR PHYSICIAN ASSISTANT AS EXPERT WITNESS (§ 8.01-401.2) A. A doctor of chiropractic, when properly qualified, may testify as an expert witness in a court of law as to etiology, diagnosis, prognosis, treatment, treatment plan, and disability, including anatomical, physiological, and pathological considerations within the scope of the practice of chiropractic as defined in § 54.1-2900. B. A physician assistant or nurse practitioner, when properly qualified, may testify as an expert witness in a court of law as to etiology, diagnosis, prognosis, treatment, treatment plan, and disability, including anatomical, physiological, and pathological considerations within the scope of his activities as authorized pursuant to § 54.1-2952. However, no physician assistant or nurse practitioner shall be permitted to testify as an expert witness for or against (i) a defendant doctor of medicine or osteopathic medicine in a medical malpractice action regarding the standard of care of a doctor of medicine or osteopathic medicine or (ii) a defendant health care provider in a medical malpractice action regarding causation. HISTORY: 1984, c. 569; 2014, cc. 361, 391; 2015, cc. 295, 306.