Ralph, I think you could add "Good" in front of that. :D
I've just had a set of cards printed. My name, 'photographer', and email address. It's not my living.
The cards are for when I'm out shooting. I meet folks, and sometimes I ask to take their photos. Sometimes they ask me. And rather than scratch around for paper and a pen, or fumble with fat thumbs and a small phone, now I've a pretty card.
I reckon Rick A has the right idea. Call yourself what you will.
When somebody else hangs one of your pictures on their wall without you asking them.
Right after someone says, "That's a great picture, you must have a really nice camera".
I agree with PeterB from Down Under...
I used to take photos of anything I found interesting at the moment.
As my experience has grown though I tend to ask myself; what the purpose of this shot is, will I print it, is it for practice, is it a composition I like, can I shoot it well with what I have in my bag, is this documentation or art?
Typically now, unless there's a good chance of me making a print, or learning something, or remembering something special; the shutter doesn't drop.
This is also behind my move away from 35mm to larger formats; the look I want in the print is driving more of my decisions.
I'm not a photographer, although I take photographs. I'm not a machinist, although I can make things on lathes and such. I'm not a mechanic, although I understand and can repair mechanisms. I'm not a....well you get the point. I'm not what I do as work, although society seems to assess us that way.
My "business" card simply has my name on it.
With your credential and accomplishment, I'd think it'd be fitting to call yourself a photographer - perhaps more.
How about "Wizard of Darkness and light?" ;)