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

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-05-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001479681</issuerCik>
        <issuerName>Nutex Health Inc.</issuerName>
        <issuerTradingSymbol>NUTX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001919945</rptOwnerCik>
            <rptOwnerName>Vo Thomas T.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>1776 YORKTOWN STREET SUITE 700</rptOwnerStreet1>
            <rptOwnerStreet2>C/O NUTEX HEALTH INC.</rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77056</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-05-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>75747</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2103014</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Micro Hospital Holdings LLC</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents the issuance in private transaction of 62,994 and 12,753 shares of common stock, respectively, with respect to the Issuer's one-time obligations related to the reporting person's pro-rata share of two under construction hospitals previously transferred to Nutex Health Holdco LLC pursuant to the Agreement and Plan of Merger dated November 23, 2021, as described in the Issuer's definitive proxy statement on Schedule 14A filed with the Securities and Exchange Commission (SEC) on February 14, 2022, as supplemented, and the Form 10-K filed with the SEC on March 5, 2026.</footnote>
        <footnote id="F2">Thomas T. Vo, the Chairman and CEO of the registrant, owns and controls Micro Hospital Holding LLC, the direct owner of the securities of the registrant reported herein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Thomas Vo</signatureName>
        <signatureDate>2026-05-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
