managing the individual’s diabetic condition (or other physician or qualified nonphysician practitioner furnishing items or services to such individual, in coordination with the physician or qualified nonphysician practitioner managing such individual’s diabetic condition), provided that the physician or qualified nonphysician practitioner who is managing the individual’s diabetic condition (or other physician or qualified nonphysician practitioner furnishing items or services to such individual, in coordination with the physician or qualified nonphysician practitioner managing such individual’s diabetic condition) certifies that— (i) there has been a change in the individual’s diagnosis, medical condition, or treatment regimen