Spray the inside of your slow cooker with non-stick cooking spray.
Add the shredded chicken, cream cheese cubes, sour cream, enchilada sauce, 1.5 cups of the shredded cheese, green chiles, cumin, and garlic powder to the slow cooker.
Stir everything together until well combined, then cover and cook on low for 2-3 hours, stirring occasionally, until the cheese is melted and the dip is hot and bubbly.
About 15 minutes before serving, sprinkle the remaining 1/2 cup cheese on top, cover, and let it melt.
Garnish with fresh cilantro and serve warm with tortilla chips.