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Kaiser Permanente is structurally different from every other payer in this reference: it is an integrated system combining a health plan, hospitals, and physician groups. Members generally receive care within the system, which means an outside practice generally will not be billing Kaiser for routine care. Treat this page as orientation; payer’s change their habits often and without notice.

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The integrated model

Care is delivered within the system by Permanente physicians at Kaiser facilities. There is no meaningful open network in the conventional sense.

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What this means for planning

Do not build a market-entry plan assuming access to Kaiser-covered lives.In markets where Kaiser has substantial share (parts of California, Colorado, the Pacific Northwest, the Mid-Atlantic, Georgia, and Hawaii among them), those members are effectively unavailable to outside practices for routine care. Model your addressable market accordingly.

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The exceptions

Circumstances where an outside practice may be paid by Kaiser: Each of these is region-specific and generally requires prior authorization or an existing arrangement.

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Enrollment and credentialing

Region-specific. There is no single national provider enrollment process. If you have a genuine contracting opportunity, start with that region’s provider relations rather than a national portal.

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Quirks worth knowing

  • Regional autonomy is substantial: the answer in Northern California may differ from Colorado
  • Authorization is central; unauthorized outside care is frequently not payable
  • Emergency claims follow their own rules and are subject to No Surprises Act protections where applicable
Last modified on August 27, 2026

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