At the time of writing, there are probably around 500,000 medical "apps" (i.e., software tools) on the 'market' (in quotes, since some may be free, albeit nothing is really free). Some are designed to be used by patients, others by clinicians. This article assesses the regulatory environment and evidence on their safety w.r.t. privacy and data integrity. While current regulations seem to be enough to ensure data integrity at the healthcare provider level, the weak link seems to be in third party apps that allow patients to interact with the providers data.
The JZ modifier will show Medicare if providers are using pharmaceuticals efficiently by identifying the amount of unused and discarded drugs from single-dose containers or single-use packages. One way to remember the correct use of these drugs is waste vs zero-waste.