How are out of network services handled by Kaiser Permanente?
Short answer
Insurance question
Kaiser Permanente operates as a closed-network HMO — out-of-network services are generally not covered except in emergencies or when Kaiser pre-authorizes an out-of-network referral. Unlike PPOs, Kaiser does not reimburse at a lower rate for out-of-network care — it typically does not cover it at all unless one of those two exceptions applies.
This is an independent research summary, not official coverage information. Your plan is the final word.
Key facts
HMO closed-network plans generally do not cover out-of-network care except for emergencies and authorized referrals.
The No Surprises Act (2022) limits surprise billing when out-of-network providers treat you at in-network facilities.
ACA caps out-of-network ER cost-sharing at the in-network level for genuine emergencies.
Here's the nuance
A one-liner rarely tells the whole story. This is the honest detail behind the short answer above.
Kaiser Permanente's HMO model is a closed-network system: doctors, hospitals, labs, pharmacies, and specialists are either employed by Kaiser or contracted exclusively within the Kaiser network. When you seek care, you are expected to use Kaiser-affiliated providers. This is a fundamental difference from PPO plans, which cover both in-network and out-of-network care (at different rates).
For routine and planned care, if you see a provider who is not part of Kaiser's network — even a highly regarded specialist or your longtime physician from before you joined Kaiser — the claim will typically be denied and you will be responsible for the full cost. There is generally no out-of-network reimbursement benefit in a Kaiser HMO plan for elective or non-emergency services that you seek on your own.
The two exceptions to this rule are emergencies and authorized referrals. Emergency care is covered anywhere, including at non-Kaiser facilities, under the ACA's prudent layperson standard. After stabilization at a non-Kaiser hospital, Kaiser typically expects you to transition follow-up care back into its network. Authorized out-of-network referrals occur when the service you need is not available within Kaiser's network — a very specialized procedure, for example. In this case, your Kaiser physician requests prior authorization for a specific out-of-network provider or facility. Kaiser's medical team reviews the request, and if approved, the out-of-network care proceeds under Kaiser's coverage framework. You must obtain this authorization before receiving care.
If you are traveling outside Kaiser's service areas, emergency care is covered. Routine care — including prescription refills beyond an emergency supply, non-urgent specialist visits, or planned procedures — is generally not covered outside the service area. Some Kaiser plans may offer limited out-of-area benefits for ongoing conditions; check your plan documents or call member services if you spend significant time outside Kaiser's coverage regions.
The key points
The handful of things that decide the answer — skim these if you only read one section.
Kaiser is a closed-network HMO — out-of-network is not covered by default
Unlike PPO plans, Kaiser HMO plans do not reimburse at a reduced rate for out-of-network care. For non-emergency services, going out-of-network without authorization typically results in full out-of-pocket costs.
Emergencies are the primary exception
Emergency care at any facility is covered under the ACA's prudent layperson standard. After stabilization, Kaiser expects follow-up care to be transferred back to its network.
Kaiser-authorized referrals are the second exception
If the needed service is not available in Kaiser's network, your Kaiser physician can request prior authorization for an out-of-network referral. You must get approval before receiving the care.
Out-of-area routine care is generally not covered
If you are traveling or living temporarily outside Kaiser's service areas, routine and planned care is typically not covered. Emergency care is always covered. Check your plan for any out-of-area provisions.
No Surprises Act adds additional protection
The No Surprises Act (effective 2022) limits surprise billing from out-of-network providers in certain situations — such as when an out-of-network provider treats you at an in-network facility. This federal protection applies to Kaiser members as well.
Confirm before you rely on this
Coverage varies by plan — this is not official
Coverage rules, benefit tiers, and medical-necessity criteria change often and differ by plan type, state, employer, and your specific policy. This page is a general, independent research summary — it is not official information from any insurer, not a benefits determination, and not financial or insurance advice.
Verify your exact coverage by calling the member number on your insurance card or checking your plan documents before you rely on any answer here.
❓Frequently Asked Questions
If you see an out-of-network provider without prior authorization, Kaiser will typically deny the claim and you will be billed the full amount by the provider. If you believe the situation warranted an exception — for example, you were not informed the provider was out-of-network, or care was genuinely urgent — contact Kaiser member services and file an appeal. Some cases may be reviewed on their individual merits, but coverage is not guaranteed.
Generally no — Kaiser's HMO model requires you to use Kaiser-affiliated providers for covered care. If your current doctor is not in Kaiser's network, their services will not be covered. Some members choose to pay out-of-pocket to maintain a relationship with a non-Kaiser provider while using Kaiser for other covered care. Contact Kaiser member services to see if your doctor could join Kaiser's network, though this is not guaranteed.
Yes — the No Surprises Act (effective January 2022) provides federal protection against surprise billing in specific situations: when an out-of-network provider treats you at an in-network facility (such as an out-of-network anesthesiologist during a Kaiser hospital procedure), or for emergency care at out-of-network facilities. In these cases, your cost-sharing is limited to the in-network amount. Kaiser must comply with these federal protections.
Start with your Kaiser primary care physician. Explain why the needed specialist or service is not available within Kaiser's network. Your PCP or Kaiser care team submits the out-of-network authorization request to Kaiser's medical review team. If approved, Kaiser provides authorization for you to receive that specific service from the designated out-of-network provider. Do not schedule the out-of-network appointment before receiving the authorization, as unauthorized care will likely not be covered.
If you permanently move out of Kaiser's service areas, your Kaiser plan coverage will end — you will need to find a new insurer in your new state. Moving is a qualifying life event that triggers a Special Enrollment Period, allowing you to enroll in a new plan. Emergency care is covered anywhere, but routine care in a state without Kaiser coverage is not. Notify Kaiser promptly if you relocate so they can advise you on your coverage transition.
Reviewed by
Curex Editorial TeamReviewed for accuracy
Last reviewed July 2026
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This page is independent research, not a benefits determination — your insurer's answer is the one that counts.
This content is for general informational purposes only. It is not official coverage information, a benefits determination, or financial or insurance advice. Coverage rules, benefit tiers, and medical-necessity criteria change often and vary by plan, state, and effective date — always verify your specific benefits directly with your insurer before making any decision.