I'm Portuguese and I live in Portugal. Here it's (still) common to see some people using their academic/professional title in introductions: "Hi, I'm Doctor / Dr. / Eng. X".
However, when watching some videos from people living in English speaking countries, I see that some people say "My name is Doctor/Dr. X" instead of "I'm Doctor / Dr. X" and that "sounds weird" to me, because "Dr./Doctor" is NOT part of (almost) anyone's name, as far as I believe.
Is this use of "My name is [TITLE] X" instead of "I'm [TITLE] X" a cultural thing? Does this happen only in some English speaking countries and not in others?