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    OpenPayerToolsPayer Contact DirectoryImperial Insurance Companies

    Imperial Insurance Companies Contact Directory

    26 contact channels across 4 types (Email, Fax, Mailing Address, Phone) for claims, prior authorization, provider services, and more.

    Last verified Aug 25, 2026 from the payer's published directories.

    Phone

    11 rows

    ContactPurposeLine of BusinessHoursNotesSource
    800-835-2362Behavioral HealthMarketplaceM-F 8 a.m. to 5 p.m. local time excluding state‑observed holidaysBehavioral Health Services – Texas MarketplaceView source
    626-380-9954Claims StatusAllN/AClaims Department – provider claims questionsView source
    626-838-5100Claims Status, Provider Services, Medical ManagementAllM-F 8:00AM-5:00PM PT; weekends 7:00AM-3:30PM PT; closed holidaysImperial Health Holdings Medical Group – Claims Department phone (claims inquiries) | Imperial Health Holdings Medical Group – Corporate phone (provider / corporate contact) | Utilization Management Department – questions about preauthorization/prior authorizationView source
    626-380-9142Medical ManagementAllN/AProvider Network Operations – general provider network operations issuesView source
    800-611-0744Medical ManagementMarketplaceM-F 8 a.m. to 5 p.m. local time excluding state‑observed holidaysNursing Triage – Texas MarketplaceView source
    800-595-0619Prior Authorization, Provider ServicesMarketplaceM-F 8 a.m. to 5 p.m. local time excluding state‑observed holidaysImperial Insurance Companies – Texas Marketplace; general prior authorization and Provider Services for nonparticipating providers | California Exchange – Provider ServicesView source
    214-452-1907Provider ServicesCommercialN/AImperial Insurance Company of Texas (IICTX) – Provider Network Operations phoneView source
    626-205-9536Provider ServicesCommercialN/AImperial Health Plan (IHP) – Provider Network Operations phoneView source
    626-708-0333Provider ServicesCommercialN/AImperial Health Plan of California – Corporate phoneView source
    800-830-3901Provider ServicesCommercialN/AProvider Services DepartmentView source
    626-380-9129Provider ServicesAllN/ACustomer Services – general provider customer serviceView source

    Fax

    8 rows

    ContactPurposeLine of BusinessHoursNotesSource
    626-380-9954Claims SubmissionCommercialN/AClaims Fax – Imperial Health Holdings Medical Group / corporate claims faxView source
    626-380-9129GeneralCommercialN/ACustomer Services faxView source
    626-521-6028GeneralCommercialN/AMain corporate faxView source
    626-283-5021Medical ManagementCommercialN/AUtilization Management (Outpatient) faxView source
    626-380-9134Medical ManagementCommercialN/AUtilization Management (Inpatient) faxView source
    866-811-0455Medical ManagementAllN/AUrgent fax for pre‑certification / referralView source
    888-910-4412Medical ManagementAllN/AAdditional standard fax for pre‑certification / referralView source
    626-380-9142Provider ServicesCommercialN/AProvider Network Operations faxView source

    Mailing Addresses

    5 rows

    ContactPurposeLine of BusinessHoursNotesSource
    Imperial Health Plan of California, P.O. Box 60874, Pasadena, CA 91116Claims SubmissionCommercialN/AImperial Health Plan of California – paper claims mailing addressView source
    Imperial Insurance Companies, Inc., P.O. Box 60160, Pasadena, CA 91116Claims SubmissionCommercialN/AImperial Insurance Companies, Inc. – paper claims mailing addressView source
    Claims Forwarding Address, P.O. Box 60075, Pasadena, CA 91106Claims SubmissionCommercialN/AImperial Health Holdings Medical Group – Claims Forwarding Address (paper claims)View source
    Imperial Health Holdings, P.O. Box 60075, Pasadena, CA 91116Claims SubmissionCommercialN/AImperial Health Holdings – paper claims mailing address (IPA/medical group)View source
    Corporate Office, 600 S Lake Ave, Suite 308, Pasadena, CA 91106GeneralAllN/ACorporate office address – Imperial Health Holdings Medical Group / Imperial Health Plan of California / Imperial Insurance Company of Texas | Corporate Office Address – Imperial Health Holdings Medical Group / Imperial Health PlanView source

    Email

    2 rows

    ContactPurposeLine of BusinessHoursNotesSource
    exchange@imperialhealthholdings.comPrior AuthorizationMarketplaceN/AElectronic submission of prior authorization requests – Texas MarketplaceView source
    pno@imperialhealthholdings.comProvider ServicesCommercialN/AProvider Network Operations – portal issues/concerns and provider network operationsView source

    Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

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    Sources

    Where this data comes from

    Every contact in this directory comes from documents the payers publish themselves, such as provider manuals, quick reference guides, and contact pages, and each payer page shows when its contacts were last verified. You can see all of our data sources and how we process them.

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