Lost/Stolen/Fraud ATM Cards: In the event of a lost/stolen ATM/Debit card or if you have fraud to report regarding your ATM/Debit card, during non-working hours, please call (800) 417-8715.

islandia front
teller area

Contact Information:

2929 Expressway Drive North
Islandia, NY 11749

Branch Phone:
(631) 233-8660

Branch Fax:

Headquarters Phone:


Bill Miller
VP, Regional Branch Manager
e-mail: wmiller@gcbny.com

Keith Steininger
AVP, Regional Branch Operations Officer
e-mail: ksteininger@gcbny.com

Lisa Tomasulo
AT/Assistant Branch Manager
e-mail: ltomasulo@gcbny.com


Monday 8:30am-4:00pm
Tuesday 8:30am-4:00pm
Wednesday 8:30am-4:00pm
Thursday 8:30am-4:00pm
Friday 8:30am-4:00pm
Saturday Closed
Sunday Closed