Y Y Combinator · QME / AME / IME · California work-comp

Workers' comp billing,
finally done right.

The modern billing platform for California workers'-comp and med-legal practices & billing companies. Submit clean bills, auto-catch every underpayment, and win second reviews — the whole revenue cycle, automated.

Book a 15-min demo See how we compare

QME·AME·IME·Liens·Med-Legal·Second Review

A 40-second tour — bill entry, electronic routing, second-review recovery, and real-time reporting. Tap the video for sound.

Submits to every California work-comp clearinghouse

CariskJopariData DimensionsCorVelChange HealthcareDOL direct

837P e-billing, with fax & mail fallback for non-electronic payers. New clearinghouse integrations usually ship in ~2 weeks.

~9 days

typical time to payment with electronic billing — versus weeks for paper.

Every EOR

scrubbed against the fee schedule — underpayments flagged and appealed automatically.

On-site

onboarding & migration off your current system, hands-on, in about two weeks.

The whole bill lifecycle

From bill entry to final dollar collected.

Purpose-built for California QME / med-legal — not a generic biller with work-comp bolted on.

Bill entry with a built-in scrub

MLFS codes & modifier stacking (ML200–ML205, 92–98), pre-built procedure & ICD-10 templates, carrier auto-detected from the claim number, CMS-1500 / DWC SBR-1 ready. Blocking checks catch bad bills before they go out.

Underpayments caught & appealed

Every EOR is compared to the fee schedule. Underpayments are flagged, Second Reviews (SBR-1) are pre-filled with appeal language that works, and IBR + audit complaints are one click away.

Clearinghouse submission, handled

Clean 837P EDI to Carisk, Jopari, Data Dimensions, CorVel, and DOL — with fax and mail fallback for non-electronic payers. Inbound payer-fax auto-matching included.

Same-day corrections

Catch a mistake before it reaches the clearinghouse? Edit and resubmit the same day — no waiting period, with full bill history and team notes.

Reporting that runs your shop

Payments by claims administrator, AR aging, MLFS report cards, denial reasons, volume by code, and per-biller productivity — all customizable and schedulable to your inbox.

No caps on users or providers

Add every biller and every rendering provider / NPI you want. We never charge per seat or per NPI — the only thing you pay for is a bill submitted.

Underpayment detection and second review

Second Review. Underpaid bills flagged automatically, appeal pre-filled.

Analytics. Days-to-pay, AR, and collections by claims administrator.

Electronic billing, end to end

Get paid in days, not weeks.

MindBill submits every bill electronically through California's workers'-comp clearinghouses — the same rails the fastest-paying billers use — and tracks each one all the way to payment.

1 · Submit

A clean 837P is generated from your bill and routed to the right clearinghouse — Carisk, Jopari, Data Dimensions, or CorVel.

2 · Confirm

Real-time 999 / 277 acknowledgments confirm the payer received and accepted the bill — no more wondering if it landed.

3 · Reconcile

Electronic EORs (835) post back automatically and are checked against the fee schedule — underpayments flagged on the spot.

4 · Recover

Underpaid? A Second Review is pre-filled and queued; non-electronic payers fall back to fax & mail. Nothing slips.

Electronic workers'-comp bills are paid in as few as 9 days — versus weeks for paper. Under California DWC e-billing rules, payers must act on an electronic bill within 15 working days.

Why teams switch

MindBill vs. legacy software

Same clearinghouses, same compliance — a modern platform, automatic underpayment recovery, and a partner who actually builds for you.

MindBill

Legacy software

Underpayment recovery

Automatic

manual

Software & UX

Modern & fast

dated

New features

Shipped in days

take it or leave it

Onboarding & migration

On-site, hands-on

DIY

Support

Direct founder line, 24/7

ticket queue

Comparison reflects typical differences between MindBill and legacy work-comp billing software.

The real difference

A founder who's all-in on your shop.

You don't get a login and a ticket queue. You get me — the person who designs and writes the software.

24/7 direct support

Founder + engineer on the other end of the line — billing can't wait.

On-site onboarding

I fly to you and we migrate off your old system together, in person.

Custom builds, fast

You ask, we build — usually in days, not quarters.

Aligned incentives

We win when your bills go out clean and get paid — your success is the product.

Built by Jimmy Wei — ex-Roblox, ex-Meta AI, M.S. Cornell — and backed by Y Combinator.

FAQ

Questions, answered.

Which clearinghouses and payers do you support?

All major California workers'-comp clearinghouses — Carisk, Jopari, Data Dimensions, and CorVel — plus fax and mail fallback for non-electronic payers. New integrations typically ship in about two weeks.

How does electronic billing get me paid faster?

Electronic bills are received and adjudicated far faster than paper. Under California DWC rules, payers must act on an e-bill within 15 working days — and in practice many are paid in as few as 9 days. You get 999/277 acknowledgments and electronic EORs (835) back automatically.

Can you migrate us off our current system?

Yes — on-site and hands-on, typically in about two weeks, with a parallel run so nothing slips during the switch.

Do you handle second reviews, IBR, and audit complaints?

Yes. Underpayments are flagged automatically against the fee schedule, Second Reviews are pre-filled (SBR-1 + CMS-1500 attached), and we escalate to IBR and audit complaints when needed.

Is it HIPAA-compliant?

Yes — MindBill is HIPAA-compliant and a Business Associate Agreement (BAA) is included.

How do we get started?

Book a 15-minute demo and we'll walk through your own workflow. If it's a fit, we'll get you set up and migrated, hands-on.

Workers' comp billing,finally done right.