Help Fund Mattie's Cancer Treatment

Hi friends, family, and animal lovers!

If you've ever had the chance to meet Mattie, you know that she is unbelievably sweet and hilariously silly. She brings endless joy to her mama Katie, her sister Murphy, her brother Biff, and her many, many human and dog friends who live all over Austin and beyond. 

Mattie is 2 years old and was diagnosed with a very rare form of bone cancer called Osteosarcoma. As part of her treatment, she requires an immediate leg amputation (where the cancer is located), x-rays, biopsies, as well as possible chemotherapy and other medical interventions. The hope is that the amputation and other treatments will get rid of the cancer, andMattie will get the chance to live a happy, healthy life after recovery. She still has so much explore! 

Mattie's medical bills are going to add up quickly, so we're asking for your support to please help Katie cover some of these costs, in whatever amount you can. Your support will mean so much to everyone who loves Mattie and it will guarantee that she will be able to get the treatment she needs. Thank you!

  • Erica Mims 
    • $25 
    • 47 mos
  • Catherine Duck Lafrenz 
    • $25 
    • 48 mos
  • Mandy Oettmeier 
    • $50 
    • 48 mos
  • Leo Vilenskiy 
    • $25 
    • 48 mos
  • Rachel Jackson 
    • $25 
    • 48 mos
See all

Organizer and beneficiary

Natalie Vanderveen 
Austin, TX
Katie Castellano 
  • #1 fundraising platform

    More people start fundraisers on GoFundMe than on any other platform. Learn more

  • GoFundMe Guarantee

    In the rare case something isn’t right, we will work with you to determine if misuse occurred. Learn more

  • Expert advice, 24/7

    Contact us with your questions and we’ll answer, day or night. Learn more