Comment by kjellsbells

Location data generated by your phone is not covered by HIPAA (source: [1]) whereas the location of a patient undergoing treatment is. Thus, there's nothing that stops a data broker inferring that you are visiting a psychiatrist or a reproductive health clinic and sharing that insight with buyers, but the clinic/doctor cant share that you were treated at such and such location since that is personal health information (PHI).

The web page below has quite some discussion on what this means for patient privacy and how to disable certain location services on your phone.

[1] https://www.hhs.gov/hipaa/for-professionals/privacy/guidance...)