First, there is no such list of firms that participate in IDP for NYC or any other location in the country. IDP is a program for interns in the architectural profession not the firms. You should approach firms that you wish to work for and inquire how they support your professional growth in the profession including IDP. In theory, all firms could fit the bill but some firms are more supportive of interns and IDP than others.
Some AIA chapters have lists of "intern-friendly" firms.
AIA South Carolina
Granted, these firms are not in NYC, but the websites might provide ideas on what to look for in firms to which you apply for employment. Remember, your professional growth is your responsibility.