What options do I have for stem cell treatment in us?

Many Options. There are many different options for stem cell therapies in the us. I would suggest you evaluate all of them thoroughly before choosing. So far the only practice that has significant research and patient base regarding stem cell therapy is regenexx. They have over 6500 patient registry with pretty good results. Regenexx.Com.
MANY. Do you mean 'stem cell transplant' for cancers such as leukemia, lymphoma etc.. Your oncologist will refer you to the closest and best center. The seattle cancer care alliance(scca) is world famous because they did the first bone marrow transplant and have the longest record of stem cell recipients.Other centers around the country have good results, too good luck.