Cut each breast into 1 inch pieces. Sprinkle chicken with a 1/4 teaspoon each of salt, pepper, and paprika.
Heat oil in a large skillet over medium heat. Add chicken, and cook until golden. Remove chicken, and set aside.
Add green pepper, onions, and garlic to oil in skillet. Cook for 5 minutes. Add rice; cook and stir until rice is opaque, 1 to 2 minutes. Stir in broth, white wine, saffron, and tomatoes. Stir in remaining salt, pepper, and paprika. Return to a boil. Cover, and simmer for 20 minutes.
Return chicken to the skillet, and cook to reheat. Stir in parsley.