Place oil in a large, non-stick skillet or wok set over medium-high heat. When hot, add chicken and stir-fry 3 to 4 minutes, until just cooked through. Remove from the pan and reserve. Add the broccoli, bell pepper, garlic and ginger to the pan and stir-fry 2 minutes. Add teriyaki sauce, orange juice mixture and water and bring to a simmer. Return chicken to the pan. Toss and simmer 1 to 2 minutes more, and then serve.
Note: The teriyaki sauce used in this recipe was Kikkoman brand.