Contacting the ASPCA About Adopted Pet?

I came across your site via the ASPCA, while looking for information about the lost pet that I adopted. As part of the records that I received, they said that the dog had surgery at an ASPCA mobile van/truck. Since the previous owners did not want to answer any questions, I was wondering how to find out what kind of surgery the dog had and what its prior medical history was?

Can anyone tell me where to find any information about where in the ASPCA to to call about past history of a pet? As new parents, we are curious as to what the prior medial history is so we can take the proper action, and update my vet on the case. It seems it's very hard to find any telephone number at the ASPCA except to donate money.

Any assistance you can give would be greatly appreciated