We don't stop at the appeal — we escalate it for 45 days.

Built for Medicare Advantage patients fighting prior auth, rehab, and surgery denials. We mail your appeal certified, follow up at Day 14, file your state complaint at Day 30, and request external review at Day 45 — all for $39 flat.

Built by an M.S. in Health Informatics after his own MRI was denied three times. 80.7% of Medicare Advantage appeals succeed — fewer than 12% of patients ever file one.

No medical records required
Just your denial letter
Secure payment via Stripe
Delete your data anytime

Start Your Appeal

Tell us a few details and we handle the rest — appeal letter, follow-ups, commissioner complaint, and external review, all mailed certified over 45 days.

See a sample appeal letter →

Real state statutesReady in 2 min$39 one-time

How It Works

Tell us about your denial. We handle literally everything else.

1

Tell us about your denial

A few quick details — your insurer, your plan, what was denied. Under two minutes.

2

Pay $39

One-time. Then upload your denial letter on the dashboard so we can build your appeal.

3

We mail your appeal

Printed and mailed certified to your insurer on Day 1.

4

We escalate automatically

Follow-up Day 14, state complaint Day 30, external review Day 45. You do nothing.

Kov Thirumavalavan, Founder of DenyBack

Why I Built DenyBack

Kov Thirumavalavan, M.S., M.B.A. — Founder

I suffered a major back injury during college, and for the past ten years, I've been dealing with chronic back pain. I've had three MRIs since then, and I know firsthand how hard it is to get medically necessary procedures approved by insurance companies.

Peace of mind is the greatest gift the healthcare system can give a patient. But for the millions of us who have been denied care, the appeals process is deliberately overwhelming — confusing deadlines, complex regulations, and letters that go unanswered. Most people give up. I decided it was time to do something about it.

That's why I created DenyBack. I wanted to give power back to the insured and make it possible for anyone who's been denied medical care to fight back — without having to figure it all out alone.

See What You Get

After you upload your denial letter and pay $39, this is your dashboard. We handle everything from here.

denyback.com/dashboard

Case DB-X7K9M2

Active

UnitedHealthcare · Medical Necessity · Claim: $4,850.00

Step 1 of 4 Complete

Your formal appeal was mailed to UnitedHealthcare on April 7, 2026. They are legally required to respond within 30 days.

Next: Your Follow-Up Letter will be automatically mailed on April 21, 2026. You don't need to do anything.

Escalation Timeline

Formal Appeal LetterSent

Day 1 · Mailed 4/7/2026

Follow-Up LetterScheduled

Day 14 · April 21, 2026

Commissioner ComplaintScheduled

Day 30 · May 7, 2026

External Review RequestScheduled

Day 45 · May 22, 2026

Your Documents

Formal Appeal Letter

4-page letter with state-specific statutes, insurer response deadline, and your personalized argument

Mailed via USPS

Follow-Up Letter

References your original appeal, cites regulatory non-compliance, warns of commissioner complaint

Mails April 21

Commissioner Complaint

6-page formal complaint to your state's Department of Insurance with full timeline and statutes

Mails May 7

External Review Request

Request for independent medical review — their decision is legally binding on your insurer

Mails May 22

You don't need to do anything.

Every document is physically mailed to your insurer via USPS certified mail. You get an email confirmation for each one.

Most denials are never challenged

The ones who fight back usually win. Almost nobody does. DenyBack is for everyone in between.

4.1M

Medicare Advantage prior authorization requests denied in 2024

11.5%

of those denials were appealed

80.7%

of appeals were partially or fully overturned

Source: KFF, Medicare Advantage Insurers Made Nearly 53 Million Prior Authorization Determinations in 2024, January 2026.

$39

One-time payment. We handle everything.

  • Appeal letter — mailed to your insurer on Day 1
  • Follow-up letter — mailed automatically on Day 14
  • Commissioner complaint — filed on Day 30
  • External review request — submitted on Day 45
  • Doctor letter template — ready for your physician
  • All mailed via USPS certified mail. You do nothing.

Patient advocates charge $100–500/hr. We charge $39 total.

Frequently Asked Questions

Yes — Medicare Advantage is exactly who DenyBack is built for. MA plans denied 4.1 million prior authorization requests in 2024, and the process rewards the patients who actually file: 80.7% of appeals are partially or fully overturned. DenyBack handles the full MA appeal and 45-day escalation. Note that Original Medicare (fee-for-service) and Medicaid use different appeal processes — if you're on one of those, your state's free SHIP counselor offers help with these.