National Physician Database Data Release, 2022–2023 — Methodology Notes

Table of Contents

• Table of contents 3
• Introduction 4
• More information 4
• 1.1 Background 5
• 1.2 Data sources and collection 5
• 1.3 Data quality 6
• 1.4 Data definitions 7
• 1.5 Computations 10
• 1.6 Data limitations 13
• 1.7 Privacy and confidentiality 15
• Appendices 16
• Appendix A: Physician specialty categories 16
• Appendix B: Measurement of a full-time-equivalent physician 19
• Appendix C: Alternative payment programs in each jurisdiction 28
• Appendix D: National Grouping System 40
• Appendix E: Fee code adjustments for services 50
• Appendix F: Text alternatives for images 54