Depends... Generally speaking,
If its an individual policy.... Claims must either be paid, pended, or denied within 30-45 days of the received date. (in most states) You can file complaints with the department of insurance in your state, in this instance. most states have resources available to do this online...
If it is a group plan, what's the hold up? The only thing I can think of that would cause a claim to be held up for such a long time would be if the employer group was, for some financial reason, withholding funds. I've seen that take weeks to work itself out.
Is there a problem with a claim? Or, are they simply not releasing checks? I'd be more than happy to help direct you
I work in insurance& health care 10+ yrs