Direct-to-patient shipping is not the same as a patient portal
ImpetusRX supports direct-to-patient 503A orders where compounders ship to the patient's home — the clinic places the order, the pharmacy fulfills and ships. That is a fulfillment model, not necessarily a patient login where individuals manage their own refills or payments.
If your workflow depends on patients self-serving checkout or tracking without calling the clinic, confirm whether ImpetusRX offers a patient app or portal, or whether white-label partners build that layer on the API.