THE RIGHTS AND DUTIES OF THE PHYSICIAN WITH REFERENCE TO THE PRIVILEGE.
The privilege established by law is a rule of evidence, and not a regulation of a physician’s general conduct outside of a proceeding in which rules of evidence are applicable.[474] The courts have, however, not hesitated to intimate that it is a physician’s duty to observe the same secrecy in his general walk and conversation.[475]
The physician may testify as an expert on hypothetical questions submitted to him regarding facts which might be equally true of any other person than his patient, and excluding from his consideration privileged knowledge.[476] And he may also testify as to matters which came to his knowledge before or after or independent of his employment as physician,[477] or which were immaterial to his acting in a professional capacity, and as to which his patient could have had no reasonable ground for believing that they were necessarily disclosed in order that the physician might so act.[478] It is the patient’s privilege and not the physician’s; and, therefore, the physician is not absolutely incompetent as a witness, and has no right to refuse to testify.[479] But where he is a party he may object and then he will not be forced to disclose his patient’s confidence.[480]
In Indiana it has been held that where the patient testifies in an action against his physician for malpractice the physician is then at liberty to testify or to introduce any other witness to testify concerning the matters in controversy.[481]
In Michigan, a physician who was plaintiff in a libel suit was not permitted to insist upon the privilege to prevent the disclosure of his maltreatment of his patient or what other physicians had discovered with regard to it by visits to his patients.[482]
The measure of the physician’s exemption and liability in testifying is the language of the statute, and not his idea of his duty to his patient or the patient’s injunctions of confidence or secrecy.[483]
In some of the States there are statutory provisions entitling physicians to sue for compensation for their professional services.[484] The statutes regarding privileged communications are to be construed together with these. There seems to be no reason why a physician’s right of action for his services and medicines should not survive the prohibition of his evidence; but it would seem that he cannot as a witness in such an action testify regarding privileged matter. But he can prove it by other witnesses.[485]