while first click this #btnRequestedProviderSelect button not showing bootstrap model popup...second click it will come why?

 $("#btnRequestedProviderSelect").click(function () {
            $("#hdnORProvider").val('Requested');
            $.ajax({
                type: "Get",
                async: false,
                url: settings.ProviderSearchPopupURL,
                data: {
                    coverageID: 0,
                    fromPage: settings.Frompage, HPID: $('#MemberHealthPlanID').val(),
                    LOBID: $("#MemberLOBID").val(), IPAID: $("#MemberIPAID").val()
                },
                success: function (data) {
                    $("#divProviderSearch").html(data);
                    $("#divProviderSearchPopup").modal();
                    $('#divProviderSearchPopup').modal({
                        keyboard: false
                    });
                    $('#divProviderSearchPopup').modal('show');
                }
            });             
        });    

while first click this #btnRequestedProviderSelect button not showing bootstrap model popup...second click it will come why?