X-rays can show a lot; fractures, bone positions, etc.
It's a good place to start, I think.
Also, you and other posters mentioned that you mentioned feeling dizzy, before you fell.
The regular pcp dr could check on if there's any medication of yours, causing dizziness, which if so, should change in some way.
Or any other cause of dizziness, that they could determine.
Because that's so important, in trying to prevent future falls.
I hope the physical therapist will have cancellations and see you sooner, because they too, can determine other possible causes of dizziness, and intervention strategies for that, too.
I know that you know all of this..... but it's a thread about falls. So, I'm rattling on.