SG never train introducing to patients then.
Actually I dont recall a proper training on this during my NUS days. Maybe i forgot liao.
But in Canada it is part of the examination and also assessment as a resident.
https://www.physicianspractice.com/...-your-practice-are-critical-patient-relations
Introducing yourself to a patient. When meeting a patient for the first time, make eye contact, extend your hand (when appropriate) and personalize the introduction by saying something like, "Hello Mr. Wong, I'm Dr. Smith, the orthopedic surgeon who will be performing your hip replacement." If family members or friends are in the room, acknowledge them as well.
It is prudent to address people with an honorific (Mr., Mrs., Dr., Miss, or Ms.), unless they ask you to call them by their first name. Let people know if you prefer to be called by your given name by inviting them to do so: "I'm Dr. Smith, and it's OK for you to call me Julia if you like."