LINQ to SQL - populate child property of a collection property - asp.net-mvc

Question

I'm using Code First and LINQ to SQL in an ASP.NET MVC4 project. In the below query I'm trying to populate PatientView.Appointments.ScheduledBy, but it's returning null. I've tried adding .Include("Appointments.ScheduledBy"), but Appointments.ScheduledBy continues to return null.
How can I modify the LINQ to SQL expression to get ScheduledBy populated?
Here's my LINQ to SQL (Id is the action's parameter)
var q = from p in context.Patients.Include("Appointments.ScheduledBy")
where p.Id == Id
select new PatientView
{
Patient = p,
Appointments = p.Appointments.OrderByDescending(a => a.ScheduledFor)
};
PatientView pv = q.Single();
PatientView is the view model for the view. The Appointments property does get populated, but the Appointments' ScheduledBy property is null.
public class PatientView
{
public Patient Patient { get; set; }
public IEnumerable<Appointment> Appointments { get; set; }
}
public class Patient
{
public int Id { get; set; }
public string Number { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public List<Appointment> Appointments { get; set; }
}
public class Appointment
{
public int Id { get; set; }
public Patient Patient { get; set; }
public Employee ScheduledBy { get; set; }
public DateTime ScheduledFor { get; set; }
}
public class Employee
{
public int Id { get; set; }
public string Email { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
}