If you want to verify that tax ID number, also commonly referred to as the EIN, or employer identification number, you can contact the IRS. Take a look at this IRS web page tfor more information.
But another thing strikes me in your message. Your group's treasurer really should be providing basic financial information at every meeting.
- Rose H
Links in this post:
IRS web page t: http://www.irs.gov/businesses/small/article/0,,id=161104,00.html