<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2024-01-02</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001014739</issuerCik>
        <issuerName>Option Care Health, Inc.</issuerName>
        <issuerTradingSymbol>OPCH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001933103</rptOwnerCik>
            <rptOwnerName>Wright Norman L.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O OPTION CARE HEALTH, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>3000 LAKESIDE DRIVE, SUITE 300N</rptOwnerStreet2>
            <rptOwnerCity>BANNOCKBURN</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60015</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>Exhibit List: Exhibit 24-Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Sarah Kim, attorney-in-fact for Mr. Wright</signatureName>
        <signatureDate>2024-01-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
