Providers in the Alliance network must use their National Provider Identifier (NPI) on all electronic submissions sent to the Alliance. Failure to report the NPI to the Alliance may cause a delay in claims reimbursement.

Please follow the instructions below to comply with this requirement.

How to Apply for an NPI Number:

NPI Enumerator
Toll-Free: 1.800.465.3203
People with hearing and speaking impairments (TTY): 1.800.692.2326.

To learn more about NPI, please visit the Centers for Medicare & Medicaid Services (CMS).

Obtain and submit your taxonomy specialty code with your NPI.

Taxonomy information, including a complete list of taxonomy codes can be found through the Washington Publishing Company.

Report your NPI number and taxonomy specialty code to the Alliance.

Submit your NPI and other provider information on your office letterhead with the provider or office manager’s signature to the Alliance via fax to:

Alliance Provider Services Department
Fax: 1.510.747.4508

We are here to help

For any questions please call:

Alliance Provider Services Department
Monday – Friday, 7:30 am – 5 pm
Phone Number: 1.510.747.4510

For more information, please view the NPI FAQ sheet.