Patient Advocacy Resource Center

Your medical bill is confusing.
Your next step shouldn’t be.

Research your bill, organize the information you need, and find official insurance forms—all in plain language.

Start with your bill
Start here

Research your medical bill

Work through the bill one piece at a time. You do not need to understand every billing code before you ask questions.

  1. 1
    Match the documents

    Compare the provider’s bill with your Explanation of Benefits (EOB). An EOB is not a bill.

  2. 2
    Check the basics

    Confirm the patient, date of service, provider, insurance plan, and amount billed.

  3. 3
    Find the reason

    Look for the adjustment or denial explanation on the EOB. Write down every reason code.

  4. 4
    Call before paying

    Ask the insurer what was denied, why, and what document or correction is needed.

  5. 5
    Document everything

    Record the date, representative’s name, call reference number, and next deadline.

Before you appeal

Build your bill research file

  • Your itemized provider bill
  • Your Explanation of Benefits
  • The denial or adverse benefit letter
  • Relevant medical records or physician notes
  • Names, dates, and reference numbers from calls
  • The appeal deadline shown on your notice
Watch the deadline. Appeal timeframes vary by plan and decision. Use your denial notice or contact your insurer to confirm the deadline and submission method.

Insurance forms library

Find the form that matches your next step.

Start with the insurer named on your card. Confirm that a form applies to your exact plan before sending personal or medical information.

AppealOfficial CMS form

Medicare Redetermination Request

CMS-20027 for the first level of a Medicare fee-for-service claim appeal.

Open official form
AppealOfficial CMS page

Medicare Reconsideration Request

CMS-20033 for the second level of Medicare fee-for-service review.

Find CMS-20033
RepresentativeOfficial Medicare page

Appointment of Representative

CMS-1696 lets someone represent a Medicare enrollee in a claim, appeal, grievance, or coverage request.

Open Medicare instructions
AppealInsurer website

UnitedHealthcare Member Appeal

Request a change to a UnitedHealthcare denial decision. Requirements vary by plan.

Open UHC form page
ReimbursementInsurer website

UnitedHealthcare Medical Reimbursement

For eligible members requesting reimbursement for certain medical expenses paid directly.

Open UHC form page
Growing library

More payer forms are coming

We are organizing official forms by insurer and purpose so patients can find the right document without digging through confusing websites.

These resources are for general educational purposes and do not replace guidance from your health plan, healthcare provider, attorney, or government agency. Forms and requirements can change; verify all instructions with the organization receiving your request.