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  <xs:element id="evh_FInancialAssetMoreThan60DaysPastDueMember" abstract="true" name="FInancialAssetMoreThan60DaysPastDueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="evh_BelowMarketLeasesMember" abstract="true" name="BelowMarketLeasesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evh_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" abstract="false" name="FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="evh_SeniorConvertibleNotesDue2029And2031Member" abstract="true" name="SeniorConvertibleNotesDue2029And2031Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evh_SeniorConvertibleNotesMember" abstract="true" name="SeniorConvertibleNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="evh_SeniorConvertibleNotesDue2029Member" abstract="true" name="SeniorConvertibleNotesDue2029Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="evh_TermLoanFacilityMember" abstract="true" name="TermLoanFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evh_FirstAndSecondIncrementalLienFacilitiesMember" abstract="true" name="FirstAndSecondIncrementalLienFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evh_DebtInstrumentRepurchasePriceDueToFundamentalChangeAsPercentageOfPrincipalAmount" abstract="false" name="DebtInstrumentRepurchasePriceDueToFundamentalChangeAsPercentageOfPrincipalAmount" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="evh_DebtInstrumentRepurchaseCovenantConsecutiveTradingDaysMinimum" abstract="false" name="DebtInstrumentRepurchaseCovenantConsecutiveTradingDaysMinimum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="evh_DebtInstrumentRepurchasePriceDueToChangeInSalePriceAsPercentageOfConversionPrice" abstract="false" name="DebtInstrumentRepurchasePriceDueToChangeInSalePriceAsPercentageOfConversionPrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="evh_DebtInstrumentUpfrontFeesPercent" abstract="false" name="DebtInstrumentUpfrontFeesPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="evh_DebtInstrumentMaturityDaysPriorToAnyJuniorDebtMaturity" abstract="false" name="DebtInstrumentMaturityDaysPriorToAnyJuniorDebtMaturity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
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  <xs:element id="evh_DebtInstrumentPrepaymentPenaltyPeriodThreePercent" abstract="false" name="DebtInstrumentPrepaymentPenaltyPeriodThreePercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="evh_DebtInstrumentRemainingAmortizationPeriod" abstract="false" name="DebtInstrumentRemainingAmortizationPeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
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  <xs:element id="evh_LineOfCreditFacilityPeriodBeforeEachAutomaticExtension" abstract="false" name="LineOfCreditFacilityPeriodBeforeEachAutomaticExtension" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
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  <xs:element id="evh_CashHeldInInternationalBanksPercentage" abstract="false" name="CashHeldInInternationalBanksPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="evh_CookCountyHealthAndHospitalsSystemMember" abstract="true" name="CookCountyHealthAndHospitalsSystemMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evh_FloridaBlueMember" abstract="true" name="FloridaBlueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evh_AetnaMember" abstract="true" name="AetnaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="evh_TemporaryEquityStockIssuedDuringPeriodSharesNewIssues" abstract="false" name="TemporaryEquityStockIssuedDuringPeriodSharesNewIssues" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
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  <xs:element id="evh_AccretionOfDeferredFinancingCostsAndRedemptionValueInExcessOfPar" abstract="false" name="AccretionOfDeferredFinancingCostsAndRedemptionValueInExcessOfPar" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="evh_RestrictedStockUnitsAndPerformanceBasedRSUsMember" abstract="true" name="RestrictedStockUnitsAndPerformanceBasedRSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="evh_EmployeeSeveranceAndTerminationBenefitsMember" abstract="true" name="EmployeeSeveranceAndTerminationBenefitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evh_MedicalExpenseAndDeviceCosts" abstract="false" name="MedicalExpenseAndDeviceCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evh_CostOfRevenueExcludingMedicalExpenseAndDeviceCostsAndOtherSegmentItems" abstract="false" name="CostOfRevenueExcludingMedicalExpenseAndDeviceCostsAndOtherSegmentItems" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evh_SellingGeneralAndAdministrativeExpensesExcludingOtherSegmentItems" abstract="false" name="SellingGeneralAndAdministrativeExpensesExcludingOtherSegmentItems" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="evh_CapitalExpendituresIncurredButNotYetPaidAccruedPropertyAndPurchases" abstract="false" name="CapitalExpendituresIncurredButNotYetPaidAccruedPropertyAndPurchases" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="evh_OperatingLeasePaymentsEffectsOfLeases" abstract="false" name="OperatingLeasePaymentsEffectsOfLeases" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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</xs:schema>
