# UnitedHealthcare fax numbers for Medicare appeals and California grievances

Find UnitedHealthcare fax numbers for Medicare appeals and California grievances, with department-specific instructions and official sources.

Country: United States
Category: Insurance
Last reviewed: 2026-10-04 (published sources, not a test transmission)

## Which UnitedHealthcare fax number should I use?

Match the plan, benefit type and urgency. California Benefits Plan grievances and Medicare appeals use different processing teams. Always check the denial letter and current plan booklet.

## California medical grievance — standard

Fax: +1 801 938 2100
E.164: +18019382100

Grievances for UnitedHealthcare Benefits Plan of California.

Use only when: Use the California grievance form and select medical or pharmacy review. Expedited review requires the plan’s urgency criteria; this is not a nationwide UHC claims fax.

[UnitedHealthcare — California medical grievance — standard](https://www.uhc.com/content/dam/uhcdotcom/en/memberresources/forms/CA-UHCBPCA-Grievance-Form-PCA1717610801139_000-Fillable.pdf) — reviewed 2026-10-04

## California medical grievance — expedited

Fax: +1 801 994 1083
E.164: +18019941083

Grievances for UnitedHealthcare Benefits Plan of California.

Use only when: Use the California grievance form and select medical or pharmacy review. Expedited review requires the plan’s urgency criteria; this is not a nationwide UHC claims fax.

[UnitedHealthcare — California medical grievance — expedited](https://www.uhc.com/content/dam/uhcdotcom/en/memberresources/forms/CA-UHCBPCA-Grievance-Form-PCA1717610801139_000-Fillable.pdf) — reviewed 2026-10-04

## California pharmacy grievance — standard

Fax: +1 801 994 1345
E.164: +18019941345

Grievances for UnitedHealthcare Benefits Plan of California.

Use only when: Use the California grievance form and select medical or pharmacy review. Expedited review requires the plan’s urgency criteria; this is not a nationwide UHC claims fax.

[UnitedHealthcare — California pharmacy grievance — standard](https://www.uhc.com/content/dam/uhcdotcom/en/memberresources/forms/CA-UHCBPCA-Grievance-Form-PCA1717610801139_000-Fillable.pdf) — reviewed 2026-10-04

## California pharmacy grievance — expedited

Fax: +1 801 994 1058
E.164: +18019941058

Grievances for UnitedHealthcare Benefits Plan of California.

Use only when: Use the California grievance form and select medical or pharmacy review. Expedited review requires the plan’s urgency criteria; this is not a nationwide UHC claims fax.

[UnitedHealthcare — California pharmacy grievance — expedited](https://www.uhc.com/content/dam/uhcdotcom/en/memberresources/forms/CA-UHCBPCA-Grievance-Form-PCA1717610801139_000-Fillable.pdf) — reviewed 2026-10-04

## Medicare Part D — standard appeals and grievances

Fax: +1 866 308 6294
E.164: +18663086294

Toll-free number; service and international charges may still apply.

Standard prescription-drug appeal or grievance documents.

Use only when: Published in the 2026 Peoples Health Complete Care LA-6 plan booklet. Other plans may differ; use your current Evidence of Coverage and denial letter to confirm this route and the applicable deadline.

[UnitedHealthcare — Medicare Part D — standard appeals and grievances](https://www.prod-azure-peopleshealth.uhc.com/content/dam/peopleshealth/peopleshealthsite/documents/2026-plan-documents/eoc/2026_EOC_CCLA-6.pdf) — reviewed 2026-10-04

## Medicare Part D — expedited appeals and grievances

Fax: +1 866 308 6296
E.164: +18663086296

Toll-free number; service and international charges may still apply.

Expedited prescription-drug appeal or grievance documents.

Use only when: Published in the 2026 Peoples Health Complete Care LA-6 plan booklet. Other plans may differ; use your current Evidence of Coverage and denial letter to confirm this route and the applicable deadline.

[UnitedHealthcare — Medicare Part D — expedited appeals and grievances](https://www.prod-azure-peopleshealth.uhc.com/content/dam/peopleshealth/peopleshealthsite/documents/2026-plan-documents/eoc/2026_EOC_CCLA-6.pdf) — reviewed 2026-10-04

## Medicare medical — expedited appeals and grievances

Fax: +1 866 373 1081
E.164: +18663731081

Toll-free number; service and international charges may still apply.

Expedited medical-care appeal or grievance documents.

Use only when: Published in the 2026 Peoples Health Complete Care LA-6 plan booklet. Other plans may differ; use your current Evidence of Coverage and denial letter to confirm this route and the applicable deadline.

[UnitedHealthcare — Medicare medical — expedited appeals and grievances](https://www.prod-azure-peopleshealth.uhc.com/content/dam/peopleshealth/peopleshealthsite/documents/2026-plan-documents/eoc/2026_EOC_CCLA-6.pdf) — reviewed 2026-10-04

## Dual Complete — Part D coverage determinations

Fax: +1 800 527 0531
E.164: +18005270531

Toll-free number; service and international charges may still apply.

Prescription-drug coverage decisions and exceptions.

Use only when: For the general Dual Complete process only. Listed state-specific plans in AZ, CO, MA, NJ, NY, OH, PA and TX have separate instructions; confirm the plan’s Evidence of Coverage. Include the prescriber’s supporting statement when required.

[UnitedHealthcare — coverage determinations](https://www.uhc.com/communityplan/learn-about-medicare/appeals-grievances-process) — reviewed 2026-10-04

## Dual Complete — Part C coverage decisions

Fax: +1 501 262 7072
E.164: +15012627072

Medical-care organization determination requests.

Use only when: For the general Dual Complete process only. Listed state-specific plans in AZ, CO, MA, NJ, NY, OH, PA and TX have separate instructions; confirm the plan’s Evidence of Coverage.

[UnitedHealthcare — Dual Complete — Part C coverage decisions](https://www.uhc.com/communityplan/learn-about-medicare/appeals-grievances-process) — reviewed 2026-10-04

## What to include in your fax to UnitedHealthcare

Include the member and claim reference, denial or grievance details, supporting evidence and representative authorization when applicable. Follow the plan’s deadline and expedited-review criteria.

## Check the destination and prepare your cover page

Identify the receiving department, document type, sender, callback number and page count. Put account or patient identifiers only where the receiving form requires them.

Check the official source and recipient instructions before sending. A reviewed source confirms a published number, not live availability.

## Confirm delivery and follow up with UnitedHealthcare

These are fax destinations, not voice support lines. Keep the transmission result and a copy of the documents. Confirm with the receiving department that the packet is complete and can be processed; a delivery receipt does not establish acceptance or a decision. Check with that department before sending a duplicate.

## How to fax UnitedHealthcare without a fax machine

Prepare a legible PDF, verify the department and number, review the pages and authorize sending. DearFax supports [online sending](https://dearfax.com/send-fax-online) and workflows with [ChatGPT](https://dearfax.com/chatgpt) or [Codex](https://dearfax.com/codex) through [MCP](https://dearfax.com/mcp). Retain the transmission result.

## Frequently asked questions

### What UnitedHealthcare fax number should I use?

Match the plan, benefit type and urgency. California Benefits Plan grievances and Medicare appeals use different processing teams. Always check the denial letter and current plan booklet.

### Can I use one fax number for every UnitedHealthcare request?

Match the plan, benefit type and urgency. California Benefits Plan grievances and Medicare appeals use different processing teams. Always check the denial letter and current plan booklet.

### What documents can I fax to UnitedHealthcare?

Include the member and claim reference, denial or grievance details, supporting evidence and representative authorization when applicable. Follow the plan’s deadline and expedited-review criteria.

### What should I put on a fax cover page for UnitedHealthcare?

Identify the receiving department, document type, sender, callback number and page count. Put account or patient identifiers only where the receiving form requires them.

### How can I fax UnitedHealthcare without a fax machine?

Prepare your documents as a legible PDF and confirm the recipient’s submission requirements. You can use DearFax in your browser or prepare the fax with ChatGPT or Codex through MCP. Review the number and pages before authorizing the send, then keep the transmission result. Delivery does not confirm that the recipient accepted or processed your request.

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