Find Your Vet Clinic and Claim Your Listing ! Claim this listing and manage your memorials! If you own this animal clinic and would like to manage your listing information and obituaries then click the claim listing button below! Claim ListingNielsen, Roy Jr DvmPhone: 712-722-2412Address: 1143 1st Ave Se Sioux Center, IA Rock Valley Iowa, 51250 MemorialsNo Memorials for this location