Patients can enroll in DUPIXENT MyWay by calling 1-844-DUPIXEN (T) or 1-844-387-4936. User Acknowledgement. TERMS OF USE. Welcome to Lash Group Provider Portal (the "Site"), a website for services arranged by The Lash Group, Inc. ("Lash") and administered and operated by The Lash Group, Inc. ("Lash"). The Site contains information about Alpha ....