Veterinarian Recommendation?

[SharonP]

I am going to Islip, NY (Long Island) to look at a PF gelding this Saturday. If I work well with the horse, I want a pre-purchase exam with a stress test for any signs of lameness. I do not want to use the owner's vet.

Can anyone recomend a vet in the Islip area who can perform the pre-purch?

Thank you for your help with this.
Sharon