NIPSCO - Contacts
Primary Contacts
P.O. Box 13007 Merrillville, IN 46411
Other Addresses
135 North Pennsylvania Street, Suite 1610 Indianapolis, IN 46204
801 E. 86th Avenue Merrillville, IN 46410
PNC Center, 101 West Washington Street, Suite 1500 East, Indianapolis, IN 46204 or
PNC Center, 101 West Washington Street, Suite 1500 South, Indianapolis, IN 46204
Other Phones
1-800-464-7726
1-800-634-3524
1-800-635-0952
1-866-248-7296
219-647-6210
Other Emails