How much does an IONM arbitration cost to file?

Each party pays a $15 administrative fee per dispute plus the certified IDR entity's fee, a few hundred dollars that is refunded to the winner. With decided IONM lines paying median awards of $2,800 to $6,225 in 2025, fixed costs are a rounding error.

Is contingency pricing expensive for IONM groups?

At this specialty's award sizes, yes. A 20 percent contingency on a five-figure case award is thousands of dollars per case. Flat fee filing keeps the spread between award and cost with the group.

How do IONM cases batch?

Cases against the same payer for the same or similar services within a 30 business day window can enter one dispute. A month of monitored cases per payer becomes a handful of arbitrations sharing one set of fees and one evidence package.

Answers / IONM economics

The economics of IONM arbitration

A No Surprises Act IDR dispute costs each party a $15 administrative fee plus a refundable arbitrator fee of a few hundred dollars, while 2025 median decided awards ran $2,800 to $6,225 per line and cases carry multiple lines. At those stakes, a 15 to 25 percent contingency fee costs more per case than the entire arbitration. Batching same-payer cases within a 30 business day window spreads the fixed fees further.

The stakes per case

A monitored spine case typically bills several lines: evoked potentials, EMG, EEG, and remote supervision. At 2025 medians, the decided lines on one case can add to five figures: $2,800 on the SSEP line, $5,325 on supervision, more if EEG and junction testing ran. Against that, the hard cost of the dispute is a $15 fee and a few hundred refundable dollars. The expected value math in this specialty is not close, which the 165,409 disputes filed in 2025 suggest the industry has noticed.

What a percentage really costs

Contingency pricing grew up when arbitration looked risky. At an 84.7 percent decided win rate and median awards in the thousands, a 20 percent contingency on a $10,000 case award is $2,000 per case, every case, forever. A monitoring company running hundreds of cases a year through the process pays for its vendor many times over. The alternative is flat pricing: Lido IDR charges a flat fee per arbitration regardless of award size, which changes the math most for exactly the high-multiple specialties like IONM.

Batching the surgery schedule

Monitoring cases against the same payer for the same or similar services within a 30 business day window can combine into one dispute. For a group covering several spine programs, that turns a month of cases into a short list of per-payer arbitrations, each carrying one set of fees across many monitored cases. Batching also concentrates the evidence work: one well-built submission on monitoring's clinical value and market rates supports the whole batch.

Where groups lose money anyway

The published record shows disputes dying on process rather than merits: open negotiation started late, the 4 business day initiation window missed, batches assembled after service dates aged out. Each miss is a case that would likely have paid thousands. The discipline is calendar work, tracking payer remittance dates and business-day deadlines per case, and it is the part worth systematizing first, whether in-house or through software built for it.

Run the math on your case volume

Lido IDR batches monitoring cases by payer and files them for a flat fee per arbitration, so the award spread stays with the group. Talk to an IDR specialist.