Prescription Reassigned

Fires when a prescription is reassigned from one provider to another. targetEntity is the Prescription. The eventType is provider_was_reassigned.

Field guarantees

Field	Guarantee
`eventData.practitioner`	✅ Always present (v1) — the new provider
`practitioner` in v2	⛔ Not delivered — not on the allowlist
v2 prescription reference (`prescription_id`, `prescription_status`, `pharmacy_id`)	✅ Always present

🚧
The new provider is v1-only. v2 payloads carry the prescription reference but not practitioner. Keep this webhook on v1 to know who it was reassigned to.

v1 payload (legacy)

ownerEntity is the full patient document (contains PHI); abbreviated here.

{
  "ownerEntityModel": "Patient",
  "targetEntityModel": "Prescription",
  "deleted": false,
  "ownerEntity": { "id": "pat::43e3b917-xxxx-xxxx-xxxx-70679b4a1b3f", "firstName": "<PATIENT_FIRST_NAME>", "lastName": "<PATIENT_LAST_NAME>", "…": "full patient document" },
  "targetEntity": {
    "provider": "usr::6c7a2816-xxxx-xxxx-xxxx-043b8b7e79cd",
    "pharmacy": "phar::4c1228bf-xxxx-xxxx-xxxx-f62157e57e9c",
    "patient": "pat::43e3b917-xxxx-xxxx-xxxx-70679b4a1b3f",
    "prescriptionNumber": "684627",
    "id": "prescr::39538082-xxxx-xxxx-xxxx-ebea6e7a6c09"
  },
  "eventTitle": "The prescription was reassigned from provider (<PROVIDER_A_NAME>) to provider (<PROVIDER_B_NAME>)",
  "eventType": "provider_was_reassigned",
  "eventData": {
    "practitioner": "usr::6c7a2816-xxxx-xxxx-xxxx-043b8b7e79cd"
  },
  "createdAt": "2023-06-12T19:57:06.290Z",
  "updatedAt": "2023-06-12T19:57:06.290Z",
  "__v": 0,
  "id": "event::726da01f-xxxx-xxxx-xxxx-9e049a2cca9b"
}

`eventData` field	Type	Always?	Notes
`practitioner`	string	✅	User id of the new provider

v2 payload

Sanitized envelope. practitioner is not on the allowlist; the prescription reference resolves from the target prescription.

{
  "event_type": "provider_was_reassigned",
  "event_id": "event::726da01f-xxxx-xxxx-xxxx-9e049a2cca9b",
  "api_version": "2026-08-09",
  "timestamp": "2026-05-30T14:00:00.000Z",
  "affiliate_id": "aff::c1636be3-xxxx-xxxx-xxxx-9dddc26e77b3",
  "patient_id": "pat::43e3b917-xxxx-xxxx-xxxx-70679b4a1b3f",
  "patient_external_id": "ext-patient-123",
  "patient_marketing_consent": false,
  "is_returning_patient": false,
  "prescription_id": "prescr::39538082-xxxx-xxxx-xxxx-ebea6e7a6c09",
  "prescription_status": "active",
  "pharmacy_id": "phar::4c1228bf-xxxx-xxxx-xxxx-f62157e57e9c"
}

Field	Delivered in v2	Notes
Envelope + patient identity	✅
`prescription_id`, `prescription_status`, `pharmacy_id`	✅	Resolved from the target prescription
`practitioner`	⛔	Not on the allowlist