The number is 800-522-2460. It's The Hayes Co. James Koenigsdorf is the man to contact for info and rates about the NPPA plan.
I've used them for 10 years, and had one camera theft. They replacad my Ike V55 & lens, without hassle (w/ a V59). (The fine print stated that they did not have to pay if stolen out of a vehicle, and the vehicle was not secured/locked & did not show obvious signs of break-in). It was a snatch and grab while we were loading gear into the Suburban at an airport. We were right by the car. It was not locked and there was no obvious break-in. All this was stated on the police report, and in my report to them... They paid the claim, saying they understood the unique "nature" of the then-current camera thefts.
Good luck with your search. Always a good idea to shop around, but overall, I've been happy with the claim service and the ability to add overseas coverage on an as-needed basis, i.e. I didn't have to pay for the entire year, only for the duration of the trip. Let us know what you find out there. I'd love to save some money, as long as the coverage is there.