Yes, the scammer con-artists can spoof your CallerID with any number they want.
For example, I kept getting scam calls from this one number, which looked "like" my number, only with 2 transposed digits. Hmmmm... odd... but they were trying to make me think I was getting a call from my own neighborhood, so I might be more likely to answer it. .... I did end up calling them back (using google's gmail internet phone), and once I answered and started giving them a fake credit card number to mess with them.... scammers, uggghh!
In your case, you got a call from a spoofed caller-id identical number, not just a close number like mine. I think this is because they really screwed up their con game, or, maybe they think that you seeing your own number makes it more likely for you to answer it. But, I think they just are being stupid because then you know something is "off" & weird seeing your own number.