Chicken Corn Chowder

Name: Chicken Corn Chowder
Ingredients: ½ lb bacon; 2 large chicken breasts, cut into bite sized pieces (*see notes); 1¼ cup celery, chopped; ⅓ cup yellow onion, chopped; ¼ cup all purpose flour (*see notes); 3 cloves garlic, minced; ½ tsp salt (*more as needed to taste); ¼ tsp dried oregano; ½ tsp dried basil; ½ tsp cayenne pepper; ½ tsp pepper; 2.5 cup corn kernels, fresh or frozen; 4-5 cups chicken broth (*see notes); ½ cup heavy whipping cream; ½ cup whole milk; 3 cups russet potatoes, chopped (about 3 medium potatoes ); ¼ cup green onions, chopped; ⅓ cup cheddar cheese, shredded; 2 Tbsp parsley, chopped (optional for garnish)