Frequently Asked Questions

What is the process to unlock my access to OASIS?

We will automatically unlock your access to OASIS. During regular business hours, we unlock accounts throughout the day. If you lock your account on a weekend (or holiday), the reset will occur when we reopen for business.

What is your routing number and how do I set up an ACH transaction?

Our routing number is 275979377. This number is also known as our ABA number. When establishing an electronic debit or credit (ACH) to your account, use the following format: In general, where XXXXX is your MEMBER number (this could be three, four, or five digits), you should add “10” at the end for settlement to your CHECKING account. Example: for member number 99999, checking is 9999910. The format for savings also uses your MEMBER number followed by the SAVINGS suffix (1, 2, 3, etc.). Be sure to select the correct suffix if you have multiple savings accounts. Example: for member number 99999, savings is 999991. Most authorization forms require you to select “Checking” or “Savings” account. Please note this selection overrides any account number format per settlement rules. So, if you select a “Checking” account but use the format for savings – the funds will settle to the checking account provided you have a checking account here (if not, the item will be returned).

How do I get access to my accounts by phone 24x7?

You must call us or stop in to the office to enroll for access to our audio response system.

My debit or credit card was lost or stolen. What do I need to do?

On the main menu, select “RESOURCES” and then “Security & ID Theft” for procedures to follow if your debit or credit card is lost or stolen.

I'm moving or I no longer work in health care. Do I have to close my account?

No, you can keep your account with us. You may access your accounts via our Shared Branch program, our website, or by phone. We provide service to members throughout the U.S.

What is Shared Branching

In partnership with CO-OP Financial Services, our members can conduct transactions at more than 5,000 locations nationally. All you need is a valid photo ID and your member number. Some locations are other credit unions and some are stand-alone branches. On the main menu, select “eSERVICES” and then “CO-OP Shared Branch” for more information and to find a location near you.

Our Services

Need Help ?

Please feel free to contact us.

302 W Upham St.

PO Box 279

Marshfield, WI 54449




For lost or stolen debit cards


For questions on your VISA® credit cards

Customer Service

866-234-4691 (US)

701-461-1772 (International)

Fraud Department


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