ยง 4504. Physician, dentist, podiatrist, chiropractor and nurse. (a) Confidential information privileged. Unless the patient waives the privilege, a person authorized to practice medicine, registered professional nursing, licensed practical nursing, dentistry, podiatry or chiropractic shall not be allowed to disclose any information which he acquired in attending a patient in a professional capacity, and which was necessary to enable him to act in that capacity. The relationship of a physician and patient shall exist between a medical corporation, as defined in article forty-four of the public health law, a professional service corporation organized under article fifteen of the business corporation law to practice medicine, a university faculty practice corporation organized under section fourteen hundred twelve of the not-for-profit corporation law to practice medicine or dentistry, and the patients to whom they respectively render professional medical services. A patient who, for the purpose of obtaining insurance benefits, authorizes the disclosure of any such privileged communication to any person shall not be deemed to have waived the privilege created by this subdivision. For purposes of this subdivision: 1. "person" shall mean any individual, insurer or agent thereof, peer review committee, public or private corporation, political subdivision, government agency, department or bureau of the state, municipality, industry, co-partnership, association, firm, trust, estate or any other legal entity whatsoever; and 2. "insurance benefits" shall include payments under a self-insured plan. (b) Identification by dentist; crime committed against patient under sixteen. A dentist shall be required to disclose information necessary for identification of a patient. A physician, dentist, podiatrist, chiropractor or nurse shall be required to disclose information indicating that a patient who is under the age of sixteen years has been the victim of a crime. (c) Mental or physical condition of deceased patient. A physician or nurse shall be required to disclose any information as to the mental or physical condition of a deceased patient privileged under subdivision (a), except information which would tend to disgrace the memory of the decedent, either in the absence of an objection by a party to the litigation or when the privilege has been waived: 1. by the personal representative, or the surviving spouse, or the next of kin of the decedent; or 2. in any litigation where the interests of the personal representative are deemed by the trial judge to be adverse to those of the estate of the decedent, by any party in interest; or 3. if the validity of the will of the decedent is in question, by the executor named in the will, or the surviving spouse or any heir-at-law or any of the next kin or any other party in interest. (d) Proof of negligence; unauthorized practice of medicine. In any action for damages for personal injuries or death against a person not authorized to practice medicine under article 131 of the education law for any act or acts constituting the practice of medicine, when such act or acts were a competent producing proximate or contributing cause of such injuries or death, the fact that such person practiced medicine without being so authorized shall be deemed prima facie evidence of negligence.