Contact Us

eMail:  merck.efcu@merck.com Shadow 1:  (732) 594-5200/800-742-3691 (800-SHADOW1)
Rahway
126 East Lincoln Avenue
PO Box 2000
Rahway NJ 07065
Main Office (732) 594-4046
Loan Department (732) 594-3018
Member Service Department (732) 594-3317
Hours: Monday – Friday: 8:00 AM – 1:00 PM and 2:00 PM – 4:00 PM
Upton Place Branch
397 Upton Place
Rahway NJ 07065
(732)  594-2274
Hours:  Monday, Tuesday, Wednesday and Friday:  9:00 AM – 2:00 PM
Thursday:  10:00 AM – 6:00 PM
Stonewall
2778 S. East Side Highway
Elkton VA 22827
(540) 298-4880
Hours: Monday, Tuesday, Thursday, Friday
9:00 AM – 12:00 PM and 1:00 PM – 4:00 PM
Wednesday: 9:00 AM – 1:00 PM
Whitehouse West
2 Merck Drive
Whitehouse Station NJ 08889
(908) 423-1506
Hours: Monday, Wednesday, Friday: 8:30 AM – 1:00 PM

Kenilworth Branch – K-6
2000 Galloping Hill Road
Kenilworth NJ 07033

(908) 740-2274
Hours:  Monday, Tuesday, Thursday and Friday – 8:30 AM – 1:00 PM

Credit Card Number:
1-800-237-6211
To report your credit card  lost or stolen, to obtain your current balance, credit limit and minimum amount due.  Please have your 16 digit account number available.
Lost Debit Cards:
1-800-554-8969
To report your debit card lost or stolen.  When reporting your card lost, you must give your name, last 4 digits of your social security number, account number and name of the financial institution.