Answer: Yes, you may collect the co-insurance on the date of the service from patients who advise you that they do not have co-insurance coverage.
My question to you: Why aren’t you trying to collect the co-insurance amount at time of service from your Medicare patients? So you’d rather bill and collect and then send your Medicare patient a bill of $12.45? Doesn’t make sense.
By the way, collecting patient copayments at time of service applies to ALL patients from whom you can legally collect from. Benchmark: You should be collecting at least $1.00 from 90% of all daily patient visits for whom you can legally collect a copayment from.