How/where do you get PSHCP approved Orthopedic shoes?

Hi, I’ve noticed we are allowed to get orthopedic shoes under PSHCP but I was wondering if anyone has gone through that process as I have some questions:

Do you need a doctors prescription? If so, does it need to be an orthopedic specialist?

If not, what kind of shoes are allowed? Could I search orthopedic shoes online and get whichever?

Would orthopedic running shoes be allowed?

Overall if you can share your experience and what has worked for you. Thanks