Your hospital has a billing department. Now you do too.
Your hospital has a billing department.
Now you do too.
Your hospital has a billing department.
Now you do too.
Over 80% of medical bills have errors.
Defensive Health finds them and fights to get your money back.
Over 80% of medical bills have errors.
Defensive Health finds them and fights to get your money back.
Over 80% of medical bills have errors.
Defensive Health finds them and fights to get your money back.
Active Disputes
Mass General Colonoscopy
$4,401.60
Dec, 2025
Upload a new bill
January 2026 Summary
Total Billed
$3,152.32
Errors Found
$968.70
Savings
$203.37
Have another medical bill?
Dispute
Amount recovered
January
2026
$0.00
$0.00
Hello,
Sarah
Active Disputes
Mass General Colonoscopy
$4,401.60
Dec, 2025
Upload a new bill
January 2026 Summary
Total Billed
$3,152.32
Errors Found
$968.70
Savings
$203.37
Have another medical bill?
Dispute
Amount recovered
January
2026
$0.00
$0.00
Hello,
Sarah
Works with all major insurance providers
Works with all major insurance providers
Defensive Health fights your medical bills so you don't have to.
We audit every charge, flag the errors, and dispute them on your behalf so you never have to overpay for healthcare again.
Defensive Health fights your medical bills so you don't have to.
We audit every charge, flag the errors, and dispute them on your behalf so you never have to overpay for healthcare again.
Defensive Health helps you…
Defensive Health helps you…
Find what they missed
We audit every charge against your records and catch errors that slip past — upcoding, duplicates, and unrelated services.
Find what they missed
We audit every charge against your records and catch errors that slip past — upcoding, duplicates, and unrelated services.
Know your rights
We use HIPAA, the No Surprises Act, and state billing laws to make sure providers play by the rules.
Know your rights
We use HIPAA, the No Surprises Act, and state billing laws to make sure providers play by the rules.
Dispute for you
We file formal disputes directly with your provider's billing department. You don't lift a finger.
Dispute for you
We file formal disputes directly with your provider's billing department. You don't lift a finger.
Negotiate on your behalf
We go back and forth with providers so you don't have to. No more hours on hold fighting for your own money.
Negotiate on your behalf
We go back and forth with providers so you don't have to. No more hours on hold fighting for your own money.
Take control of your medical bills.
Any insurer
We work with every major insurance carrier in the US.
Line-by-line audit
Every charge checked for errors, automatically.
AI-powered disputes
We build your case, draft your dispute, and handle the rest.
Works with all major insurers
Flagged charges
NYU Langone Health
MRI, UPPER EXTREMITY
Feb 13
-$1,200
Mount Sinai
PHYSICAL THERAPY EVAL
Feb 13
-$350
Sarah Johnson
PPO
UnitedHealthcare
Analyzing Records
I got charged for an MRI I never had. What can I do?
We pulled your records and we can see that the MRI charge ($1,200) has no matching order in your medical record — this is a clear billing error. We've already drafted a dispute letter.
Review dispute letter before sending
Ask anything
Any insurer
We work with every major insurance carrier in the US.
Line-by-line audit
Every charge checked for errors, automatically.
AI-powered disputes
We build your case, draft your dispute, and handle the rest.
Works with all major insurers
Flagged charges
NYU Langone Health
MRI, UPPER EXTREMITY
Feb 13
-$1,200
Mount Sinai
PHYSICAL THERAPY EVAL
Feb 13
-$350
Sarah Johnson
PPO
UnitedHealthcare
Analyzing Records
I got charged for an MRI I never had. What can I do?
We pulled your records and here's what we found…
Review dispute letter before sending
Ask anything