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California Ancillary Service Care Providers

Thank you for your interest in joining the UnitedHealthcare Network in California.

This information applies only to clinics, facilities/organizations and ancillary care providers located within the state of California who would like to contract with UnitedHealthcare.

Some services require credentialing. Credentialing is the process of reviewing and verifying your professional credentials to assure the UnitedHealthcare Network consists of quality health care professionals who meet defined criteria and standards.

If a network is listed as “closed”, it means we are not accepting new providers at this time. You should check back frequently for updated network information.

Click on the "+" sign below to view more information.

Credentialing is not required for ambulance and transportation companies, however, credentialing for transportation services may be required under an HCBS/LTSS (Home & Community-Based Services /Long Term Services and Support) contract.

We require that ambulance and transportation companies submit a Letter of Interest before a contract is made.

Step 1: Letter of Interest
The Letter of Interest needs to include the following information:

  • Contact name and email address
  • Full name of Facility
  • Type of service the facility provides (i.e. ambulance, patient transportation, etc.)
  • Facility address
  • Facility phone number
  • Facility fax number
  • Facility tax identification number
  • County where facility is located
  • A copy of current signed W-9

Fax your Letter of Interest to UnitedHealthcare at one of the numbers below based on your facility location:

  • Facilities located in Northern California: 800-788-4955
  • Facilities located in Southern California: 866-231-5821

If we receive an incomplete Letter of Interest or do not receive a Letter of Interest from you, your credentialing process will be considered incomplete.

Step 2: Contracts
After your Letter of Interest has been received and accepted, the contracting process will begin.

Contracts will not be made until a care provider or facility has submitted a completed Letter of Interest.

Ambulatory Surgery Centers, Congregate Living Facilities, Long-Term Acute Care Centers and Rehab Hospital care providers must be credentialed in order to participate in the UnitedHealthcare network.

The credentialing application process takes up to 25 calendar days for review and approval.

Once your credentialing is approved, your network management contact will help you begin the contracting process.

Step 1: Begin the Credentialing Process
Contact our Credentialing Department at 877-842-3210 and select the following prompts:

  1. Help with Something Else
  2. Credentialing
  3. Medical
  4. Join the Network

The Credentialing team will explain the credentialing process and the information required for your application.

Step 2: Credentialing Approval or Denial
We will notify you by U.S. Mail on whether your credentialing application has been approved or denied.

Step 3: Letter of Interest
Submit a Letter of Interest that clearly indicates that your facility has completed credentialing and has been approved. The Letter of Interest also needs to include the following information:

  • Contact name and email address
  • Full name of Facility
  • Type of service the facility provides (i.e. long-term acute care, rehab facility, etc.)
  • Facility address
  • Facility phone number
  • Facility fax number
  • Facility tax identification number
  • County where facility is located
  • A copy of current signed W-9

Fax your Letter of Interest to UnitedHealthcare at one of the numbers below based on your facility location:

  • Facilities located in Northern California: 800-788-4955
  • Facilities located in Southern California: 866-231-5821

If we receive an incomplete Letter of Interest or do not receive a Letter of Interest from you, the credentialing process will be considered incomplete.

Step 4: Contracts
After your Letter of Interest has been received and accepted, the contracting process will begin. We won’t provide you with a contract to sign until Steps 1 through 3 have been completed.

The network for Audiology and Hearing Aids is currently closed. We are not accepting new care providers at this time.

All hearing aid services are provided through Epic Hearing or hi HealthInnovations™.

Contact Epic or hi HealthInnovations directly if you would like to be a part of their hearing aid network.

Ambulatory Surgery Centers, Congregate Living Facilities, Long-Term Acute Care Centers and Rehab Hospital care providers must be credentialed in order to participate in the UnitedHealthcare network.

The credentialing application process takes up to 25 calendar days for review and approval.

Once your credentialing is approved, your network management contact will help you begin the contracting process.

Step 1: Begin the Credentialing Process
Contact our Credentialing Department at 877-842-3210 and select the following
prompts:

  1. Help with Something Else
  2. Credentialing
  3. Medical
  4. Join the Network

The Credentialing team will explain the credentialing process and the information required for your application.

Step 2: Credentialing Approval or Denial
We will notify you by U.S. Mail on whether your credentialing application has been approved or denied.

Step 3: Letter of Interest
Submit a Letter of Interest that clearly indicates that your facility has completed credentialing and has been approved. The Letter of Interest also needs to include the following information:

  • Contact name and email address
  • Full name of Facility
  • Type of service the facility provides (i.e. long-term acute care, rehab facility, etc.)
  • Facility address
  • Facility phone number
  • Facility fax number
  • Facility tax identification number
  • County where facility is located
  • A copy of current signed W-9

Fax your Letter of Interest to UnitedHealthcare at one of the numbers below based on your facility location:

  • Facilities located in Northern California: 800-788-4955
  • Facilities located in Southern California: 866-231-5821

If we receive an incomplete Letter of Interest or do not receive a Letter of Interest from you, the credentialing process will be considered incomplete.

Step 4: Contracts
After your Letter of Interest has been received and accepted, the contracting process will begin. We won’t provide you with a contract to sign until Steps 1 through 3 have been completed.

The Diagnostic Radiology network is closed only in Los Angeles County.

Credentialing is not required for Diagnostic Radiology facilities, however, facilities must be Medicare Certified, accredited with the American College of Radiology or the Intersocietal Accreditation Commission, in order to participate in our network.

We do require that Diagnostic Radiology facilities submit a Letter of Interest before a contract can be issued.

Accredited Agencies

Step 1: Letter of Interest
Submit a Letter of Interest needs to include the following information:

  • Contact name and email address
  • Full name of Facility
  • Type of service the facility provides (i.e. patient transportation, etc.)
  • Facility address
  • Facility phone number
  • Facility fax number
  • Facility tax identification number
  • County where facility is located
  • A copy of current signed W-9

Fax your Letter of Interest to us at one of the numbers below based on your facility location:

  • Facilities located in Northern California: 800-788-4955
  • Facilities located in Southern California: 866-231-5821

If we receive an incomplete Letter of Interest or do not receive a Letter of Interest from you, your credentialing process will be considered incomplete.

Step 2: Contracts
After your Letter of Interest has been received and accepted, the contracting process will begin.

Contracts will not be made until a provider or facility has submitted a completed Letter of Interest.

All Dialysis care providers must be credentialed in order to participate in the UnitedHealthcare network.

The credentialing application process takes up to 25 calendar days for review and approval.

Once your credentialing is approved, your network management contact will help you to begin the contracting process.

Step 1: Begin the Credentialing Process
Contact our Credentialing Department at 877-842-3210 and select the following prompts:

  1. Help with Something Else
  2. Credentialing
  3. Medical
  4. Join the Network

The Credentialing team will explain the credentialing process and what information is required for your application.

Step 2: Credentialing Approval or Denial
We will notify you by U.S. Mail on whether your credentialing application has been approved or denied.

Step 3: Letter of Interest
Submit a Letter of Interest that clearly indicates that your facility has completed credentialing and has been approved.
The Letter of Interest also needs to include the following information:

  • Contact name and email address
  • Full name of Facility
  • Type of service the facility provides (i.e. long-term acute care, rehab, ASC, etc.)
  • Facility address
  • Facility phone number
  • Facility fax number
  • Facility tax identification number
  • County where facility is located
  • A copy of current signed W-9

Fax your Letter of Interest to us at 855-237-3953.

If we receive an incomplete Letter of Interest or do not receive a Letter of Interest from you, your credentialing process will be considered incomplete.

Step 4: Contract
After your Letter of Interest has been received and accepted, the contracting process will begin.

We won’t provide you with a contract to sign until Steps 1 through 3 have been completed.

The network for Durable Medical Equipment is currently closed. We are not accepting new care providers at this time.

The network for Home Health Services is currently closed in Southern California.

The network for Home Health Services is open for care providers in Northern California.

For Northern California Care Providers Only
All care providers must be credentialed in order to participate in the UnitedHealthcare network. The credentialing application process takes up to 25 calendar days for review and approval.

Once your credentialing is approved, your network management contact will help you to begin the contracting process.

Step 1: Begin the Credentialing Process
Contact our Credentialing Department at 877-842-3210 and select the following prompts:

  1. Help with Something Else
  2. Credentialing
  3. Medical
  4. Join the Network

The Credentialing team will explain the credentialing process and what information is required for your application.

Step 2: Credentialing Approval or Denial
We will notify you by U.S. Mail on whether your credentialing application has been approved or denied.

Step 3: Letter of Interest
Submit a Letter of Interest that clearly indicates that your facility has completed credentialing and has been approved.
The Letter of Interest also needs to include the following information:

  • Contact name and email address
  • Full name of Facility
  • Type of service the facility provides (i.e. private nursing, etc.)
  • Facility address
  • Facility phone number
  • Facility fax number
  • Facility tax identification number
  • County where facility is located
  • A copy of current signed W-9

Fax your Letter of Interest to us at one of the numbers below based on your facility location:

  • Facilities located in Northern California: 800-788-4955

If we receive an incomplete Letter of Interest or do not receive a Letter of Interest from you, your credentialing process will be considered incomplete.

Step 4: Contracts
After your Letter of Interest has been received and accepted, the contracting process will begin.

We won’t provide you with a contract to sign until Steps 1 through 3 have been completed.

The network for Home Infusion services is currently closed. We are not accepting new care providers at this time.

All Hospice care providers must be credentialed in order to participate in the UnitedHealthcare network.

The credentialing application process takes up to 25 calendar days for review and approval.

Once your credentialing is approved, your network management contact will help you to begin the contracting process.

Step 1: Begin the Credentialing Process
Contact our Credentialing Department at 877-842-3210 and select the following prompts:

  1. Help with Something Else
  2. Credentialing
  3. Medical
  4. Join the Network

The Credentialing team will explain the credentialing process and what information is required for your application.

Step 2: Credentialing Approval or Denial
We will notify you by U.S. Mail on whether your credentialing application has been approved or denied.

Step 3: Letter of Interest
Submit a Letter of Interest that clearly indicates that your facility has completed credentialing and has been approved. The Letter of Interest also needs to include the following information:

  • Contact name and email address
  • Full name of Facility
  • Type of service the facility provides (i.e. hospice acute care, rehab, etc.)
  • Facility address
  • Facility phone number
  • Facility fax number
  • Facility tax identification number
  • County where facility is located
  • A copy of current signed W-9

Fax your Letter of Interest to UnitedHealthcare at one of the numbers below based on your facility location:

  • Facilities located in Northern California: 800-788-4955
  • Facilities located in Southern California: 866-231-5821

If we receive an incomplete Letter of Interest or do not receive a Letter of Interest from you, your credentialing process will be considered incomplete.

Step 4: Contracts
After your Letter of Interest has been received and accepted, the contracting process will begin.

We won’t provide you with a contract to sign until Steps 1 through 3 have been completed.

The network for Independent Labs is currently closed. We are not accepting new care providers at this time.

The network for Pathology Services is open. Credentialing is not required for Pathology Services.

We require facilities that would like to join the network for Pathology Services submit both a Letter of Interest and a Lab Inquiry Questionnaire.

Step 1: Letter of Interest
The Letter of Interest needs to include the following information:

  • Contact name and email address
  • Legal name of Facility
  • Facility address
  • Facility phone number
  • Facility fax number
  • Facility tax identification number
  • NPI number
  • List of Place Services
  • List of Pathologist that belong to the group
  • Copy of licenses

Fax your Letter of Interest to UnitedHealthcare at 855-576-3637.

If we receive an incomplete Letter of Interest or do not receive a Letter of Interest from you, your credentialing process will be considered incomplete.

Step 2: Lab Inquiry Questionnaire

Step 3: Contracts
You will need to submit a Letter of Interest before you can request a contract from UnitedHealthcare. After your Letter of Interest has been received and accepted, the contracting process will begin.

Contracts will not be made until a care provider or facility has submitted a completed Letter of Interest and Lab Inquiry Questionnnaire.

Credentialing is not required for ambulance and transportation companies, however, credentialing for transportation services may be required under an HCBS/LTSS (Home & Community-Based Services /Long Term Services and Support) contract.

We require that ambulance and transportation companies submit a Letter of Interest before a contract is made.

Step 1: Letter of Interest
The Letter of Interest needs to include the following information:

  • Contact name and email address
  • Full name of Facility
  • Type of service the facility provides (i.e. ambulance, patient transportation, etc.)
  • Facility address
  • Facility phone number
  • Facility fax number
  • Facility tax identification number
  • County where facility is located
  • A copy of current signed W-9

Fax your Letter of Interest to UnitedHealthcare at one of the numbers below based on your facility location:

  • Facilities located in Northern California: 800-788-4955
  • Facilities located in Southern California: 866-231-5821

If we receive an incomplete Letter of Interest or do not receive a Letter of Interest from you, your credentialing process will be considered incomplete.

Step 2: Contracts
After your Letter of Interest has been received and accepted, the contracting process will begin.

Contracts will not be made until a care provider or facility has submitted a completed Letter of Interest.

Occupational Therapy, Physical Therapy and Speech Therapy services in California are provided through Optum Physical Health.

Care providers interested in joining in the Optum Physical Health network must contact them directly at 800-873-4575 or www.myoptumhealthphysicalhealth.com

The network for Orthotics and Prosthetics is currently closed. We are not accepting new care providers at this time.

Occupational Therapy, Physical Therapy and Speech Therapy services in California are provided through Optum Physical Health.

Care providers interested in joining in the Optum Physical Health network must contact them directly at 800-873-4575 or www.myoptumhealthphysicalhealth.com

Credentialing is not required for ambulance and transportation companies, however, credentialing for transportation services may be required under an HCBS/LTSS (Home & Community-Based Services /Long Term Services and Support) contract.

We require that ambulance and transportation companies submit a Letter of Interest before a contract is made.

Step 1: Letter of Interest
The Letter of Interest needs to include the following information:

  • Contact name and email address
  • Full name of Facility
  • Type of service the facility provides (i.e. ambulance, patient transportation, etc.)
  • Facility address
  • Facility phone number
  • Facility fax number
  • Facility tax identification number
  • County where facility is located
  • A copy of current signed W-9

Fax your Letter of Interest to UnitedHealthcare at one of the numbers below based on your facility location:

  • Facilities located in Northern California: 800-788-4955
  • Facilities located in Southern California: 866-231-5821

If we receive an incomplete Letter of Interest or do not receive a Letter of Interest from you, your credentialing process will be considered incomplete.

Step 2: Contracts
After your Letter of Interest has been received and accepted, the contracting process will begin.

Contracts will not be made until a care provider or facility has submitted a completed Letter of Interest.

The network for Respite Care does not require credentialing. However, there are a limited number of plans that cover Respite Care and all contracting is done through Evercare Connections.

Contact Evercare Connections at 877-842-3210 for contracting information.

Skilled Nursing Facilities are organized through UnitedHealthcare Medicare & Retirement.

Care providers interested in joining the network should contact Miriam Harris at 612-642-7773.

The network for Specialty Pharmacy is currently closed. We are not accepting new care providers at this time.

Occupational Therapy, Physical Therapy and Speech Therapy services in California are provided through Optum Physical Health.

Care providers interested in joining in the Optum Physical Health network must contact them directly at 800-873-4575 or www.myoptumhealthphysicalhealth.com

The network for Sleep Studies is currently closed. We are not accepting new care providers at this time.

Credentialing is not required for Urgent Care facilities, however, Urgent Care facilities must be Medicare Certified in order to participate in our network.

We do require that Urgent Care facilities submit a Letter of Interest before a contract can be issued.

Step 1: Letter of Interest
The Letter of Interest needs to include the following information:

  • Contact name and email address
  • Full name of Facility
  • Type of service the facility provides (i.e. acute care, etc.)
  • Facility address
  • Facility phone number
  • Facility fax number
  • Facility tax identification number
  • County where facility is located
  • A copy of current signed W-9

Fax your Letter of Interest to us at one of the numbers below based on your facility location:

  • Facilities located in Northern California: 800-788-4955
  • Facilities located in Southern California: 866-231-5821

If we receive an incomplete Letter of Interest or do not receive a Letter of Interest from you, your credentialing process will be considered incomplete.

Step 2: Contracts
After your Letter of Interest has been received and accepted, the contracting process will begin.

Contracts will not be made until a care provider or facility has submitted a completed Letter of Interest.