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Northwestern University

Department/Office Directory

Use this directory to find phone numbers, email addresses and website links for university departments and offices. Individuals can edit their online directory information.

You can also submit a new listing or download a PDF version of this Directory.

Accounts Payable

Accounts Payable, part of Procurement and Payment Services, provides support and policies to facilitate the processing of payables transactions including invoices, checks, online vouchers, reimbursements, vendor credits, and wire transfers.

  • Phone: 847-491-7339
  • Fax: 847-491-4738
  • Email:
  • Buildings: Suite 2300, 2020 Ridge Avenue, Evanston, IL 60208 campus map
  • Web site:
Department Heads
Guy A Wilson
Manager of Accounts Payable
Primary Contacts
Gary Ernsteen
Assistant Manager Transaction Processing
Wanda S Kailer
Assistant Manager Customer Service Accounts Payable
Other Contacts
Accounts Payable General Support 847-491-7339


Monday–Friday, 8:30 a.m.–5 p.m.

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This form is intended for use by Northwestern University faculty, staff and students. Non-Northwestern visitors are welcome, but directory support is only available for the Northwestern community.

This directory is for official Northwestern University use and also for individual communication between faculty, staff and students listed here. Use of this directory for any other purpose, including, but not limited to, reproducing and storing it in a retrieval system by any means, electronic or mechanical, photocopying, or using the addresses or other information contained in the directory for any private, commercial or political mailing is strictly prohibited, is in direct violation of copyright and constitutes misappropriation of corporate property.

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