Nydia Rolling, Director of Human Resources, 1001 Main Street, 5 th Floor, Buffalo, NY 14203 716.323.0000, 716.323.0290, nrolling@upa.chob.edu. You can file a grievance in person or by mail, fax, or email. If you need help filing a grievance, Nydia Rolling, Director of Human Resources, is available to help you.Contact Us‧Endocrinology/Diabetes‧Research‧10/19/18 Find a Doctor‧Allergy/Immunology.