EXHIBIT 31



Certifications



I, SAM WINER, as Chief Executive Officer and Chief Financial Officer certify that:



| | 1. | I have reviewed this quarterly report on Form 10-QSB of Diagnostic Corporation of America;
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| | 2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the
circumstances under which such statements were made, not misleading with respect to the period covered by this report;
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| | 3. | Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of
operations and cash flows of the registrant as of, and for, the periods presented in this report;
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| | 4. | I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:
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(a) Designed such disclosure
controls and procedures, or caused such disclosure controls and procedures to be designed under my supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to me by others
within those entities, particularly during the period in which this report is being prepared;



(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under
my supervision, to provide reasonable assurance regarding the liability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;



(c) Evaluated the effectiveness of the registrants
disclosure controls and procedures and presented in this report my conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and



(d) Disclosed in this report any change in the
registrants internal control over financial reporting that occurred during the registrants most recent fiscal quarter (the registrants fourth fiscal quarter in the case of an annual report) that has materially affected, or is
reasonably likely to materially affect, the registrants internal control over financial reporting.



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| | 5. | As the registrants certifying officer, I have disclosed, based on my most recent evaluation of internal control over financial reporting, to the registrants auditor and
the audit committee of the registrants board of directors (or persons performing the equivalent functions):
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(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are
reasonably likely to adversely affect the registrants ability to record, process, summarize and report financial information; and



(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrants
internal control over financial reporting.



|                   |  |                                                  
|------------------ |  | -------------------------------------------------
|Date: May 11, 2005 |  | /s/ Sam Winer                                    
|                   |  | Chief Executive Officer, Chief Financial Officer,
|                   |  | Secretary and Chairman of the Board of Directors