STATEN ISLAND, N.Y. -- After receiving her new health coverage in January through the New York State of Health Marketplace, Arden Heights resident Margaret Figueroa, 49, who suffers from two chronic illnesses, went to her pharmacy to fill her prescriptions. Although her insurance company, EmblemHealth, assured her she was covered, her insurance card was denied. While she had signed up for new health coverage -- because her insurance carrier dropped her old plan -- the company's internal paperwork apparently wasn't filed. She also learned that all her long-time doctors didn't accept the new insurance plan. For Ms. Figueroa, who suffers...