Place chicken breasts in the bottom of a 6-quart slow cooker.
Add the Great Northern beans, diced onion, minced garlic, green chiles, chicken broth, cumin, oregano, chili powder, and cayenne pepper.
Cover and cook on low for 6 hours or high for 3-4 hours.
Remove the chicken breasts to a plate and shred with two forks.
Return the shredded chicken to the slow cooker and stir in the frozen corn and cubed cream cheese.
Cover and cook for an additional 15 to 20 minutes until the cream cheese is melted and incorporated.
Season with salt and pepper to taste before serving.