"I want to go into pediatric medicine," he said.
Walker began volunteering at The Children's Hospital at age 13. He started working in the gift shop and was later asked to be on the Junior Volunteer Advisory Board.
"I used to always say, 'Kid doctor. I want to be a kid doctor.' I found out at 13 you can be a volunteer here. I knew I had to just start volunteering," Walker said.
Today, he volunteers in the emergency department seven hours every week. In the ED, Walker draws upon his own experience, being diagnosed with Crohn's Disease, to help him relate to others.
"There's a time... I was in and out of the hospital, doctor's office. [I] knew what it was like to be scared," Walker said.
He delivers fresh blankets and a warm greeting.
"Having that extra blanket makes that stay much more comfortable. Makes them want to stay and not leave," he said.
He also cleans and arranges the toy closets.
"Even though I'm not medically helping them, I have that blanket when they're cold, toys to make the time go faster," Walker said.
"That's why I want to be here. Help them in their worst times. Help them through," Walker said. "I've always believed if you help people, it will come back to you."
In addition to his time at Children's, Walker helps his grandfather on his days off from school at the Barbara Davis Center clinic.
Please congratulate Walker Crowley, one of our 2011 9Kids Who Care winners.
(KUSA-TV © 2011 Multimedia Holdings Corporation)