If you are applying for Adjustment of Status in the U.S., Form I-693, Medical Examination of Aliens Seeking Adjustment of Status, is used to report the results of the medical exam to USCIS. If you are applying for a visa at a U.S. Consular post overseas, Form DS-2053 (Formerly Form OF-157) will be given to you. The Consular officer will supply this form and the accompanying supplements, and will give you the names and telephone numbers of Panel Physicians in your area. There is also a vaccination supplement which your Civil Surgeon or Panel Physician will provide. It is used to record the results of the vaccination assessment.
Yes, when you go for your medical examination, you need to carry passport, or other form of government issued photo identification, and any written documentation of your vaccination history. If you are applying for an immigrant visa from outside of the U.S., you need to bring three current visa-sized photographs.