Accounts receivable in a medical practice comes in two streams that behave differently: insurance A/R, which is what payers owe on submitted claims, and patient A/R, which is what patients owe after insurance has adjudicated — copays, coinsurance, deductibles, and self-pay balances. Both are money you are waiting on, but they age, deny, and collect on entirely different timelines, and lumping them together hides which one is actually the problem.
The detailed aging — claim by claim, patient by patient — lives in your practice-management or billing system, and that is where it should live. What QuickBooks needs is an accurate financial picture that reconciles to that system: the receivable balances recorded so they tie to the billing aging, collections posted as they arrive, and the split between insurance and patient responsibility visible rather than merged into one undifferentiated pile. When those two streams are separated and reconciled, you can see whether cash is slow because payers are sitting on claims or because patient balances are not being collected — a distinction that changes what you do about it. When they have drifted apart, the fix is the same discipline as our QuickBooks accounts receivable cleanup, applied to a practice's dual receivables.