My father recently was treated for what seems to be dementia. He was taken to a facility but no one will tell me how he is doing, help?

Not sure. What type of facility he was taken to, but try making contact with the social services person assigned to him. One problem may be a lack of consent to talk with you, but social services should be able to clarify this for you.
Dementia. You or another member of your family should make an appointment with the doctor and discuss his case, as to diagnosis, his treatment, therapy and his prognosis.Thats the way to go.