Question: Virginia Subscriber Answer: Most practices do bill the secondary insurance on behalf of patients, but if the patient has a deductible on the secondary insurance, you can and should bill the patient that amount. You can find out about secondary insurers by asking the patients for the information when they first present to your practice and fill out the financial information form. You will need to verify which insurance is primary -- then bill that payer first, followed by the secondary insurer. Once you get the EOB from the primary payer, you'll send your claim to the secondary, with a copy of the primary's EOB attached. In most cases, after you've received both payments, you'll take the adjustments from whichever insurance has the larger adjustment. You should not take adjustments from both plans, nor should you write off deductibles. You'll bill the patient for any remaining balance once you have both payments. Of course, individual payer contracts reign when determining where to collect. Hint: