Webto find participating stores and check your balance on the ucard hub, visit the member site to access your account or use the unitedhealthcare mobile app. Use your otc credit. Webquickly and easily check the balance on your card without logging into your account! Simply enter your card number and security code, which may be located on either the. Webquickly and easily check the balance on your card without logging into your account! Simply enter your card number and security code, which may be located on either the. Webregister or login to your unitedhealthcare health insurance member account. Have health insurance through your employer or have an individual plan?