Yes. Read-only access is useful for a practitioner who is no longer working at your practice but may still need access to their patient's medical records. Read-only access prevents them from adding, editing or deleting any records.
To set read-only access for a practitioner:
Click Settings > Users.
Click the Edit (pencil) icon next to the practitioner's name.
Tick the Read Only Access checkbox.
You should also change their access level to Personal access so they can't see anyone else's information.