Escalate Anything

UnitedHealthcare: billing error

Compare the provider bill with the EOB, then call member services.

ACredibility A · last verified 2026-10-12 · dossier 2026-10-12 · 94% official or government sources
What does this mean?

Grade A (high: almost everything comes from official pages read directly). 94% of 31 sources are the organization's own pages or government sites.

All UnitedHealthcare contactsOpen in the interactive directoryJSON

Collect

Steps

  1. Compare the provider bill with the EOB.

  2. Call the number on the member ID card about a claim processed wrongly. Ask the provider to rebill to the EOB amount.

  3. If it is not fixed, file an appeal or grievance with the online form.

More contacts for this issue

PhoneMembers with a plan through work (employer plans) +1-866-801-4409
MailWritten appeals (employer and individual plans that use the standard address) UnitedHealthcare Member Inquiry/Appeals, P.O. Box 740816, Atlanta, GA 30374-0816

Facts you can cite

Rules in force

If that fails, escalate

Go up one step at a time. Keep the reference numbers and dates from each contact.

  1. Customer service

    PhoneMembers with a plan through work (employer plans) +1-866-801-4409

    Call the member services number on the back of the member ID card.

  2. Written complaint

    Internal appeal or grievance online, or by mail to the address on the denial letter or EOB.

  3. State agency

    Your state’s insurance department. Find it in the list of state agencies (also as JSON: states/<code>.json, for example states/ny.json).

    External review for fully insured plans; complaint to the state.

  4. Federal regulator

    Employer self-funded (ERISA) plans.

  5. Federal regulator

    Surprise bills under the No Surprises Act.

Watch out

  • uhc.com and member.uhc.com return 403 to automated page readers; most values come from official-domain search results. The online appeal form (memberforms.uhc.com) is readable.
  • Member phone numbers and appeal addresses are plan-specific; use the ID card and the denial letter. The Medicare appeal address comes from 2024 plan documents.
  • The online appeal form needs email and phone verification codes, which an agent cannot receive without the member.
  • Claims and EOBs need a member login.

Let your AI agent handle this

Escalate Anything is a free, open-source MCP server for Claude, Cursor, VS Code, Gemini CLI, Codex and other AI apps. Your agent gets this playbook, keeps a case log with reference numbers and follow-up dates, and drafts each message for you to approve.

1. Set it up (needs uv):

uvx escalate-anything setup

2. Ask your agent:

UnitedHealthcare charged me [amount] on [date] for something I did not order. Use Escalate Anything to get it corrected.

Source code, other install options and the Claude Code plugin

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