N.Y. Comp. Codes R. & Regs. tit. 12 § 341.6
A podiatrist authorized to treat workers' compensation cases, when requested to supersede another podiatrist or a physician, must before beginning treatment, make reasonable effort to communicate with the attending podiatrist or the physician to ascertain the patient's condition and whether or not there is any injury or disease affecting any part of the body other than the foot. The superseding podiatrist must also advise the attending podiatrist or physician of the name of the person who has requested him to assume care of the case and state the reason therefor. If the superseding podiatrist cannot contact the attending physician or podiatrist and the claimant's condition is such as to require immediate treatment of the foot, the superseding podiatrist should advise the podiatrist or physician previously in attendance, within 48 hours, that he or she now has the patient in his or her care, and send a copy of such notice to the carrier and to the chair. The preceding podiatrist or physician shall supply the superceding podiatrist or physician with a complete history of the case.
N.Y. Comp. Codes R. & Regs. Tit. 12 § 341.6