My dad has diabetes type 2 sugar level 350 mg/dl and had stents placed in his heart and he sometimes has pain in his heart so what is the treatment?

See doc. If he has stents he is at risk for having coronary events and his chest pain should be taken seriously unless we have already been able to attribute this to something else. Secondarily he needs his diabetes, lipids and blood pressure treated to goal. Bg should be substantially less than the 350 mentioned.