Inventory the work behind each address
List the locations used for management, support, clinical encounters, mail, and record administration. Identify which people work at each address and whether patients or other visitors attend. Include regular work from a residence even if the company also rents an office somewhere else.
The Garden Grove FAQ gives examples of how administrative activity and official address use can identify business headquarters. Present the complete arrangement to licensing staff and request clarification of the applicable category. Do not assume a registered mailing address answers every question about where the business operates. Preserve the explanation with your internal records so the team can recognize when hiring, relocation, or a changed workflow makes it outdated. This is a practical classification exercise, not a way to establish professional permission to practice medicine.