Contact usMKR BILLING QUESTIONS Office Hours:Monday - Thursday 8:00 am - 4:30 pmFriday 8:00am - Noon (559) 734-92441700 South Court St. Suite F (Upstairs) Visalia, CA 93277 eleanor alvaradobilling supervisor(559) 734 -9244 ext 130ealvarado@mineralking.com stacy hernandezbilling manager(559) 734-9244 ext 150shernandez@mineralking.com