In short, yes! Patients will see the headlines/subjects that you assign to your conversations with them.
1. When a message has a subject, but is awaiting care team member assignment: patients will see the subject line in the preview and the chat details
2. When a message doesn't have a subject nor an associated care team member: patients will see the clinic's name in the preview
3. When a message has both a subject and an associated care team user: patients will see the care team member's name in the preview, and the subject line in the chat details