No. The regulations do not designate a specific staff person to conduct the follow-up for positive mammograms. The facility may specify that the audit interpreting physician conduct the follow-up, but this is not required under the MQSA final regulations. The facility may designate a single individual to take the lead on patient follow-up, and also identify a back-up person to conduct the follow-up during the designated lead person’s absence. However, the lead interpreting physician is responsible for the facility’s quality assurance program, which includes the mammography medical outcomes audit. 21 C.F.R. 900.2(x).