The Florida PIP Demand Letter: What § 627.736(10) Requires Before You Sue

§ 627.736(10) requires that before any action for PIP benefits is filed, the claimant (or someone on their behalf) provide the insurer written notice of an intent to initiate litigation. The letter has to specify the claimant, the claim number if known, the specific benefits claimed to be due, and give the insurer a defined window — 30 days after receipt — to pay the claim or otherwise resolve it before suit can be filed.

The policy logic is straightforward: give the insurer one clean, documented chance to fix a legitimate error before both sides incur litigation costs. For providers, the practical upside is real — a well-built demand package resolves a meaningful share of disputes inside that 30-day window, without ever reaching a courtroom, because a correctly itemized shortfall gives the insurer's claims desk an easy, low-risk decision: pay it now, or defend an arithmetic error later.

The statute is specific about form, and Florida courts have not been forgiving of demand letters that skip elements. At minimum, a compliant PIP demand letter needs:

• Identification of the claimant — patient name, and the insurer's claim number if one has been assigned.
• The specific amount claimed to be due, itemized. A vague assertion that "the claim was underpaid" without a dollar figure and a basis for it does not satisfy the requirement.
• Sent to the correct address. Many auto policies designate a specific address for statutory notices in the policy language itself; sending the demand to a generic claims department instead of the address the insurer designated is a common, avoidable defect.
• Clear identification of the provider or assignee making the demand, consistent with any assignment of benefits on file.

None of this is exotic, but each element is independently checkable, and a demand letter missing one of them hands the insurer's defense counsel an easy procedural argument that has nothing to do with whether the underlying claim was actually underpaid.

The statute requires an itemized demand; it doesn't specify the format, which means the quality of the itemization is where cases are actually won or lost inside the 30-day window. A demand package that gives the insurer's adjuster everything needed to verify the shortfall in five minutes gets paid faster than one that makes them do the work themselves — and packages that make the adjuster do the work tend to get a form denial instead.

A strong itemization, line by line per date of service, includes:

• CPT code billed and the amount charged
• The correct-year, correct-locality Medicare Part B participating allowable used in the fee-schedule calculation (see our fee schedule calculator guide for the exact formula and how to source this figure)
• The computed payable amount: allowable × 200% × 80%
• What the insurer actually paid on that line
• The resulting shortfall, and a running total across all disputed lines
• Supporting documentation: the original EOB, proof of timely submission, and any medical necessity documentation the insurer's remark codes call into question

This is exactly the re-pricing discipline covered in our underpayments article — the demand letter is where that re-pricing work gets packaged into something the insurer has to respond to on the record.

Once the demand is received, the insurer has 30 days to pay the claim, or the balance, or respond with a basis for continued non-payment. A few practical realities of that window:

• Send it in a way that proves receipt — certified mail or another delivery method that documents the date the clock started. A dispute over when the 30 days began is an avoidable, unforced complication.
• Partial payment during the window is common. An insurer that agrees some lines were underpaid but disputes others may pay the undisputed portion and respond substantively on the rest — track this per line, not as a single yes/no outcome.
• Silence is not resolution. If the window closes with no payment and no substantive response, the letter has done its job: it created the documented pre-suit record § 627.736(10) requires, and the path to litigation is now open if the practice or its attorney chooses to pursue it.

The practices that get demand letters out fast — and get paid inside the 30-day window more often — aren't building the itemization from scratch every time. They're demand-ready by default: EOBs re-priced against the fee schedule as a matter of routine (not just when a dispute is already brewing), a per-patient benefit ledger that makes exhaustion and payment history a lookup rather than a reconstruction project, and documentation filed contemporaneously rather than assembled under deadline pressure months later.

That posture is the same billing discipline covered across this whole cluster — fee-schedule accuracy from the calculator guide, exhaustion tracking from the underpayments article, and clean documentation habits from our piece on Letters of Protection billing. A demand letter is just the moment all of that documentation gets tested.

If your practice is sitting on a stack of "resolved" PIP EOBs you've never actually re-priced, that's the starting point — not a demand letter yet, just an honest look at whether one is warranted. ClaimCarePro builds demand-ready documentation into our standard PIP billing workflow for Tampa Bay and Pinellas County practices, on a 15% contingency for underpayment recovery — no recovery, no fee. Start with the PIP billing guide, or request a free A/R review to see what's sitting in your own auto-injury EOBs.