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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 By6MItR1pAvHTgtPS4KkfjKHyPbDYP5W40uhdt5k9SXUx4dHodpma7xX0KvCQ5zZ
 CKPiaF/WmlHlj/A+MlLcsA==

<SEC-DOCUMENT>0001209191-07-058034.txt : 20071011
<SEC-HEADER>0001209191-07-058034.hdr.sgml : 20071011
<ACCEPTANCE-DATETIME>20071011174607
ACCESSION NUMBER:		0001209191-07-058034
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20071009
FILED AS OF DATE:		20071011
DATE AS OF CHANGE:		20071011

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HEALTHCARE ACQUISITION CORP
		CENTRAL INDEX KEY:			0001326190
		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
		IRS NUMBER:				202726770
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2116 FINANCIAL CENTER
		STREET 2:		666 WALNUT STREET
		CITY:			DES MOINES
		STATE:			IA
		ZIP:			50309
		BUSINESS PHONE:		515-244-5746

	MAIL ADDRESS:	
		STREET 1:		2116 FINANCIAL CENTER
		STREET 2:		666 WALNUT STREET
		CITY:			DES MOINES
		STATE:			IA
		ZIP:			50309

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			St Peter Steven
		CENTRAL INDEX KEY:			0001352447

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32587
		FILM NUMBER:		071168022

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		617-425-9235

	MAIL ADDRESS:	
		STREET 1:		MPM CAPITAL
		STREET 2:		200 CLARENDON STREET 54TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>bsf34240_bsf9ss.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-10-09</periodOfReport>

    <issuer>
        <issuerCik>0001326190</issuerCik>
        <issuerName>HEALTHCARE ACQUISITION CORP</issuerName>
        <issuerTradingSymbol>PIP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001352447</rptOwnerCik>
            <rptOwnerName>St Peter Steven</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MPM ASSET MANAGEMENT</rptOwnerStreet1>
            <rptOwnerStreet2>200 CLARENDON ST., 54TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.25</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-10-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>20000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2017-10-09</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>20000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">50% of the shares vest immediately on the option grant date and the remaining 50% vest on the one year anniversary of the option grant date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Steven St. Peter</signatureName>
        <signatureDate>2007-10-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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