I don't really have any direct input (podiatrists here are all about diabetic foot care and most of them have never even seen an athlete; I got my orthotics made by PTs using an AmFit machine).

But if it was me, I'd bring my bike and cycling shoes to the next visit, and a trainer if you have or can borrow one. Whether or not this pod has any experience with cyclists, it can't hurt for him to see your particular body mechanics on the bike.