Who is Dr. Bloomburg from Keeping Faith and what is their importance?

Dr. Bloomburg is the physician who oversees Faith's recovery in the hospital after her episode of stigmata. It's Bloomburg who calls in consultants and eventually says that he won't rule the case officially stigmata, but that he won't rule it out because he has no other explanation. It's Bloomburg who says that Faith may be dying and that the court order keeping Mariah away is cruel.