How to Appeal a Medicare Claim Denial in Florida

Why Medicare Claims Are Denied

Medicare denies claims for several reasons:

• The service is determined not medically necessary
• The provider isn't enrolled in Medicare
• The service isn't covered under Medicare
• Billing errors (incorrect codes, missing information)
• Coverage coordination issues

Important: Many initial denials are reversed on appeal. Medicare beneficiaries who appeal have a meaningful success rate — particularly for medical necessity denials where your doctor supports the treatment.

The 5 Levels of Medicare Appeal

Medicare has five levels of appeal, each escalating to a higher authority:

1. Redetermination — Request within 120 days of denial. Medicare contractor reviews the claim. Decision within 60 days.
2. Reconsideration — If denied, escalate to a Qualified Independent Contractor (QIC). Decision within 60 days.
3. Office of Medicare Hearings and Appeals (OMHA) — Request within 60 days. An Administrative Law Judge reviews your case. Requires at least $180 in disputed claims (2026).
4. Medicare Appeals Council — Request within 60 days of OMHA decision.
5. Federal Court — Final appeal option for claims above $1,870 (2026).

How to File a Level 1 Redetermination

When you receive a Medicare Summary Notice (MSN) showing a denied claim:

1. Circle the denied service on your MSN
2. Write a letter explaining why you believe Medicare should cover the service
3. Include your Medicare number, the date of service, and the claim number
4. Attach supporting documentation — especially a letter from your treating physician
5. Mail to the address shown on your MSN within 120 days

A letter from your doctor explaining medical necessity is your strongest tool at the redetermination level. If your doctor believes the treatment was necessary, get that documented clearly.

Florida Resources for Medicare Appeals

Florida seniors have access to free help navigating Medicare appeals:

• SHINE (Serving Health Insurance Needs of Elders) — Florida's free Medicare counseling program. Call 1-800-963-5337. Trained counselors can help you file appeals at no charge.
• 1-800-MEDICARE — Available 24/7 to answer questions and guide you through the appeals process.
• medicare.gov/appeals — Online resources and forms for all five appeal levels.
• Legal Services of Greater Miami / Bay Area Legal Services — Free legal assistance for low-income Florida seniors with Medicare disputes.