California Cancer Reporting System Standards Volume I: Abstracting and Coding Procedures
Enter the name or code number of the attending physician—not a resident or intern—responsible for the patient. (For instructions about entering codes, see Section III.3.12.1)
Enter code 99999999 if there is no Follow-Up Physician.
Enter code 99999999 if the Follow-Up Physician is "unknown" or "license number not assigned."
Enter the physician NPI code in the respective field, if it is available. See Appendix X for further details.