Interfaith Medical Center — a cash-strapped hospital struggling to serve some of the poorest neighborhoods in the city — was the victim of a $16 million white-collar feeding frenzy. Based in Bedford-Stuyvesant, Brooklyn, Interfaith has for years had one of the worst emergency room wait times in the state. Records from April show it took nearly two hours to see a doctor there. The 287-bed non-profit facility — where patients are rarely insured and almost always rely on Medicaid — was for months mired in bankruptcy proceedings. And a mentally ill patient managed to beat another patient to death in an Interfaith shower stall in 2013 because the staff lost track of them.