I think my fastest turn around on a submitted insurance bill was like 10 calendar days. That same company has also taken like 8 weeks for other bills submitted. Medicare is by far my slowest overall. I just recently got some resolution on a handful from a different company that were like 6 months old. I've got one company that hasn't even paid anything yet after 4-5 months, because they wanted records and even now things are "still in review."
As finalpsychyear pointed out, a bill submitted for $200, might get reduced down to $100, of which the insurance pays $60, $20 was the co-pay (supposed to be at time of service) and even an additional "co-insurance" of 20% which is the residual $20 needed to be collected from the patient.
-Some patients have an insurance that pays the entire reduced amount
-Some only have a co-pay
-some only have a co-insurance percentage
-some have a co-insurance and co-pay
-Of course there is also the deductible, with it now being January, many patients are paying a larger component out of pocket. Which means potentially harder to collect... which gets at what fianlpsychyear alluded to on *if* you have 100% collections...
-Then there is your unique detail... you are only getting a Percentage of collections. So of the exampled $100 above, you are only getting, 40%? 70%? 60%? etc. of what was actually collected.
Now you should start to see why you are getting paid below what you expected and why its taking so long.