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  • FORMER COMMERCE CUSTOMERS: For now, please keep using only the branches you’ve been using (in Cedarburg, Elm Grove, Sheboygan and West Bend). We’ll ultimately get you access to this Summit branch (and all our branches!), so watch for updates.

“At Summit, we’re all about helping you turn wishing, waiting and wondering into planning, doing and experiencing."

New Berlin
15600 W National Ave, Suite 4
New Berlin, WI 53151
Lobby Hours:
(Branch is Located in Strip Mall)
9:00 am – 5:00 pm Mon-Thu
9:00 am – 6:00 pm Fri
9:00 am – 12:00 pm Sat
Phone Numbers:
(800) 236-5560


Branch Manager

Christen O'Quinn, Branch Manager
phone: (800) 236-5560, ext. 7620
branch fax: (414) 422-0072

christen.o'quinn@summitcreditunion.com
Mortgage Loan Officer
Cody Krznarich
phone: (800) 236-5560, ext. 5555
fax: (262) 672-4918
cody.krznarich@summitcreditunion.com