24 Del. Admin. Code § 1700-6.0
Consultation may be done telephonically, electronically or in person. Consultation shall ordinarily consist of a history and physical examination, review of records and imaging pathology or similar studies. Consultation includes providing opinions and recommendations. An active Delaware certificate is required of any out of state physician who comes into Delaware to perform a consultation more than twelve (12) times per year. A physician who comes into Delaware to perform consultations must be actively licensed in another State or country on a full and unrestricted basis. Any consultations done for teaching and/or training purposes may include active participation in procedures and treatment, whether surgical or otherwise, provided a Delaware licensed physician remains responsible as the physician of record, and provided the patient is not charged a fee by the consultant.
24 Del. Admin. Code § 1700-6.0