Exhibit 99.1350CERT

         Certification Pursuant to Section 906 of the Sarbanes Oxley Act

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

            1.    The N-CSR of the Fund (the "Report") fully complies with the
                  requirements of Section 13(a) or 15(d) of the Securities
                  Exchange Act of 1934; and

            2.    The information contained in the Report fairly presents, in
                  all material respects, the financial condition and results of
                  operations of the Fund.

      Dated: June 23, 2003


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

      A signed original of this written statement required by Section 906 has
      been provided to MuniYield New York Insured Fund, Inc. and will be
      retained by MuniYield New York Insured Fund, Inc. and furnished to the
      Securities and Exchange Commission or staff upon request.



Exhibit 99.1350CERT

         Certification Pursuant to Section 906 of the Sarbanes Oxley Act

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

            1.    The N-CSR of the Fund (the "Report") fully complies with the
                  requirements of Section 13(a) or 15(d) of the Securities
                  Exchange Act of 1934; and

            2.    The information contained in the Report fairly presents, in
                  all material respects, the financial condition and results of
                  operations of the Fund.

      Dated: June 23, 2003


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

      A signed original of this written statement required by Section 906 has
      been provided to MuniYield New York Insured Fund, Inc. and will be
      retained by MuniYield New York Insured Fund, Inc. and furnished to the
      Securities and Exchange Commission or staff upon request.