California Cancer Reporting System Standards Volume I: Abstracting and Coding Procedures for Hospitals
State physician's license numbers are nine characters.
For license numbers less than eight characters, insert zero(s) after the first alpha character. For handling a nine-character number, enter the alpha character and drop the first zero.
For dentists, the same instructions apply.
For osteopaths, add a leading O (alpha character) and then enter the entire eight-character code . For handling a nine-character number, drop the zero after O2.
Physician - A23456 would be entered A0023456
Dentist - D00056789 would be entered D0056789
Osteopath - O20A4422 would be entered O20A4422 or for nine digit O20A44222 would be entered O2A44222
Note: It is important to note that the first character of the osteopath license is an alpha character and the third character is a zero.
Facilities may enter out-of-state license numbers. The first character must be an X. If this number is less than seven characters, insert zeroes between the X and the license number.