Since the breeder is a distance away, it would be best to ask for a scanned copy of the OFA (hips, elbows and cardiac) and any other health certifications (CERF on the eyes, for example). Or he could also supply you with the appropriate OFA numbers and you could look them up on the OFA site as already mentioned.
The OFA site will also be able to tell you if the grandparents of the puppies are OFA'd too, so you will know that there is some background of health. Ideally, health certifications are done for several generations to prove the genetic likelihoods of good health. One generation is not sufficient.
If you just show up there, you or your wife will simply fall in love with the puppy and take one regardless of the health of the parents. Backyard breeders depend on the emotional draw of a cute puppy! Good breeders talk about health certifications immediately and want to show proof of health so that people understand how important it is.
While these pups will need kind, loving homes like all pups do, you will be most upset if your dog ends up with hip dysplasia or another crippling disease and you find out then that there wasn't any true health certifications on the parents and grandparents. It's up to us, the puppy buyers, to research and only support breeders who are trying to breed the healthiest dogs they can. Without buyers, the backyard breeders will either start doing health certifications or will stop breeding, and either of those will benefit the breed as a whole.
Melanie and the gang in Alaska