<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>e400789_ex99-cert.txt
<DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 302
<TEXT>

EX-99. CERT

                      CERTIFICATION PURSUANT TO SECTION 302
                        OF THE SARBANES-OXLEY ACT OF 2002

--------------------------------------------------------------------------------

I, Terry K. Glenn, President of MuniYield New York Insured Fund, Inc., certify
that:

      1.    I have reviewed this report on Form N-Q of MuniYield New York
            Insured Fund, Inc. (the "Fund");

      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;

      3.    Based on my knowledge, the schedule of investments included in this
            report fairly present in all material respects the investments of
            the Fund as of the end of the fiscal quarter for which the report is
            filed;

      4.    The Fund's other certifying officer(s) and I are responsible for
            establishing and maintaining disclosure controls and procedures (as
            defined in Rule 30a-3(c) under the Investment Company Act of 1940)
            and internal control over financial reporting (as defined in Rule
            30a-3(d) under the Investment Company Act of 1940) for the Fund and
            have:

            a)    designed such disclosure controls and procedures, or caused
                  such disclosure controls and procedures to be designed under
                  our supervision, to ensure that material information relating
                  to the Fund, including its consolidated subsidiaries, is made
                  known to us 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 our supervision, to provide reasonable
                  assurance regarding the reliability of financial reporting and
                  the preparation of financial statements for external purposes
                  in accordance with generally accepted accounting principles;

<PAGE>

            c)    evaluated the effectiveness of the Fund's disclosure controls
                  and procedures and presented in this report our conclusions
                  about the effectiveness of the disclosure controls and
                  procedures, as of a date within 90 days prior to the filing
                  date of this report based on such evaluation; and

            d)    disclosed in this report any change in the Fund's internal
                  control over financial reporting that occurred during the
                  Fund's most recent fiscal quarter that has materially
                  affected, or is reasonably likely to materially affect, the
                  Fund's internal control over financial reporting; and

      5.    The Fund's other certifying officer(s) and I have disclosed to the
            Fund's auditors and the audit committee of the Fund's board of
            directors (or persons performing the equivalent functions):

            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
                  Fund'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 Fund's
                  internal control over financial reporting.

      Date: September 17, 2004


                                        /s/ Terry K. Glenn
                                        ------------------
                                        Terry K. Glenn,
                                        President of MuniYield New York Insured
                                        Fund, Inc.

<PAGE>

EX-99. CERT

                      CERTIFICATION PURSUANT TO SECTION 302
                        OF THE SARBANES-OXLEY ACT OF 2002

--------------------------------------------------------------------------------

I, Donald C. Burke, Chief Financial Officer of MuniYield New York Insured Fund,
Inc., certify that:

      1.    I have reviewed this report on Form N-Q of MuniYield New York
            Insured Fund, Inc. (the "Fund");

      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;

      3.    Based on my knowledge, the schedule of investments included in this
            report fairly present in all material respects the investments of
            the Fund as of the end of the fiscal quarter for which the report is
            filed;

      4.    The Fund's other certifying officer(s) and I are responsible for
            establishing and maintaining disclosure controls and procedures (as
            defined in Rule 30a-3(c) under the Investment Company Act of 1940)
            and internal control over financial reporting (as defined in Rule
            30a-3(d) under the Investment Company Act of 1940) for the Fund and
            have:

            a)    designed such disclosure controls and procedures, or caused
                  such disclosure controls and procedures to be designed under
                  our supervision, to ensure that material information relating
                  to the Fund, including its consolidated subsidiaries, is made
                  known to us 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 our supervision, to provide reasonable
                  assurance regarding the reliability of financial reporting and
                  the preparation of financial statements for external purposes
                  in accordance with generally accepted accounting principles;

<PAGE>

            c)    evaluated the effectiveness of the Fund's disclosure controls
                  and procedures and presented in this report our conclusions
                  about the effectiveness of the disclosure controls and
                  procedures, as of a date within 90 days prior to the filing
                  date of this report based on such evaluation; and

            d)    disclosed in this report any change in the Fund's internal
                  control over financial reporting that occurred during the
                  Fund's most recent fiscal quarter that has materially
                  affected, or is reasonably likely to materially affect, the
                  Fund's internal control over financial reporting; and

      5.    The Fund's other certifying officer(s) and I have disclosed to the
            Fund's auditors and the audit committee of the Fund's board of
            directors (or persons performing the equivalent functions):

            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
                  Fund'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 Fund's
                  internal control over financial reporting.

      Date: September 17, 2004


                                        /s/ Donald C. Burke
                                        -------------------
                                        Donald C. Burke,
                                        Chief Financial Officer of
                                        MuniYield New York Insured Fund, Inc.

</TEXT>
</DOCUMENT>
