As an outpatient doctor, should I leave a phone number for my patients?

As an outpatient doctor, do you want to leave a phone number for the patient? I think the outpatient doctor can leave a phone number for the patient to explain the doctor. Being responsible for patients and having medical ethics, I agree, because patients sometimes go to the hospital and can't finish seeing the doctor on the same day. How many times do you have to run? It's more convenient to have the phone number of the outpatient doctor. It is also convenient for patients. You won't come for nothing. Sometimes you can call the doctor to explain the situation when your illness gets worse at home. Therefore, it is appropriate to leave the phone number of the outpatient doctor.