On a recording of the 911 call Wednesday, Buddy is heard whimpering and barking after the dispatcher answers and repeatedly asks if the caller needs help.
"Hello, this is 911. Hello ... Can you hear me? Is there somebody there you can give the phone to," says the dispatcher, Chris Scott.
Police were sent to Stalnaker's home, and after about three minutes Buddy is heard barking loudly when the officers arrived.
Scottsdale police Sgt. Mark Clark said Stalnaker spent two days in a hospital and recovered from the seizure.
"It's pretty incredible," Clark said. "Even the veteran dispatchers -- they haven't heard of anything like this."
Clark said police are dispatched whenever 911 is called, but that Stalnaker's address was flagged in Scottsdale's system with a notification that a trained assistance dog could call 911 when the owner was incapacitated.