The Humboldt IPA is a delegated physician group including non-physician providers for two HMO health plans as well as a third-party administrator for local employer PPO health plans. By joining the Humboldt IPA network and becoming a participating provider you will be able to provide care to members of the following current plans:

  • Anthem HMO
  • Blue Shield HMO
  • Blue Lake Rancheria Health Plan – PPO
  • Humboldt IPA Employee Assistance Program – EAP

There are two options when applying to become a member of the Humboldt IPA provider panel:

  • Purchase stock and become a voting member of the organization
  • Contract with the Humboldt IPA through a provider services agreement only

Administrative and reimbursement terms are the same for all provider panel members by license. Details about the stock offering are included in the application package.

If you have any questions about network participation or stock ownership, please contact us. We look forward to you joining the network and becoming a participating provider with the Humboldt IPA.

Please note:

  • Applications are best viewed using Internet Explorer. If you are using Chrome and are experiencing difficulties, please use Internet Explorer or click here for directions.
  • A PDF Viewer is required. If you need a PDF viewer you can download the free Adobe Reader here:
  • If you receive an error stating “To view the flash technology content in this PDF file…”, then please Click Here and choose “Run” to install Adobe Flash player to open the file.

To open the application packages below:

  • Internet Explorer Users: Right-click on the desired application then choose “Save as…” to save a copy to your computer. Then browse to the saved location to open the file.
  • Chrome Users: Please see directions here.


Rosemary Den Ouden, COO

707.443.4563 ext. 39

Brigid Cherry, Credentialing Manager

707.443.4563 ext. 34