In 2018 R2 October releases onward you can suppress various identifying fields from printing on Medilink invoices.

The settings will hide DOB and/or Medicare/DVA and/or Fund details from printing on invoices.

This provides an added level of privacy to the invoices (which historically have printed these identifying data fields on them).

Note that this does not work for Crystal style invoices (which are pre/custom designed and not controlled by these settings).

The settings are in File Menu -> General Options -> Invoice Privacy or under File Menu -> New Printer Setup.