Google is fine. Then call them. Usually need to wait for some time since it is free. Or you can find some family doctor/primary care doctors nearby. Call them, tell them you have no insurance, and ask them how much it will be . Endocrinologist is usually much more expensive. Doctors from free clinics can prescribe insulin too. Meanwhile, check the blood sugar at least twice per day including morning fasting sugar, and before lunch or dinner. Bring to records to the doctor. You may need to do blood work.