diff --git a/onnxruntime/core/providers/nv_tensorrt_rtx/nv_execution_provider.cc b/onnxruntime/core/providers/nv_tensorrt_rtx/nv_execution_provider.cc
index 93b673f2df5bd..f827b807f2408 100644
--- a/onnxruntime/core/providers/nv_tensorrt_rtx/nv_execution_provider.cc
+++ b/onnxruntime/core/providers/nv_tensorrt_rtx/nv_execution_provider.cc
@@ -3,6 +3,7 @@
 // Licensed under the MIT License.
 #include <fstream>
 #include <list>
+#include <thread>
 #include <unordered_set>
 #include "core/providers/shared_library/provider_api.h"
 #include "core/providers/nv_tensorrt_rtx/nv_provider_options.h"
@@ -1056,6 +1057,11 @@ NvExecutionProvider::NvExecutionProvider(const NvExecutionProviderInfo& info)
                         << ", nv_op_types_to_exclude: " << op_types_to_exclude_;
 }
 
+Status NvExecutionProvider::Sync() const {
+  CUDA_RETURN_IF_ERROR(cudaStreamSynchronize(stream_));
+  return Status::OK();
+}
+
 NvExecutionProvider::~NvExecutionProvider() {
   // clean up thread local context caches
   {
@@ -1574,8 +1580,8 @@ SubGraphCollection_t NvExecutionProvider::GetSupportedList(SubGraphCollection_t
               // the initializer was marked as external data by the ORT graph at load time since it was provided in memory
               size_t size = 0;
               const void* ptr = nullptr;
-              c_api.GetTensorSizeInBytes(&initializer_value, &size);
-              c_api.GetTensorData(&initializer_value, &ptr);
+              Ort::ThrowOnError(c_api.GetTensorSizeInBytes(&initializer_value, &size));
+              Ort::ThrowOnError(c_api.GetTensorData(&initializer_value, &ptr));
               userWeights.emplace_back(tp->name(), ptr, size);
             } else if (utils::HasExternalDataInMemory(*tp)) {
               // only copy and take ownership of the data if none of the above conditions are met
@@ -2394,8 +2400,8 @@ Status NvExecutionProvider::CreateNodeComputeInfoFromGraph(const GraphViewer& gr
         // the initializer was marked as external data by the ORT graph at load time since it was provided in memory
         size_t size = 0;
         const void* ptr = nullptr;
-        c_api.GetTensorSizeInBytes(&initializer_value, &size);
-        c_api.GetTensorData(&initializer_value, &ptr);
+        Ort::ThrowOnError(c_api.GetTensorSizeInBytes(&initializer_value, &size));
+        Ort::ThrowOnError(c_api.GetTensorData(&initializer_value, &ptr));
         userWeights.emplace_back(tp->name(), ptr, size);
       } else if (utils::HasExternalDataInMemory(*tp)) {
         // only copy and take ownership of the data if none of the above conditions are met
diff --git a/onnxruntime/core/providers/nv_tensorrt_rtx/nv_execution_provider.h b/onnxruntime/core/providers/nv_tensorrt_rtx/nv_execution_provider.h
index 9e5fd03756f02..dc323cd643032 100644
--- a/onnxruntime/core/providers/nv_tensorrt_rtx/nv_execution_provider.h
+++ b/onnxruntime/core/providers/nv_tensorrt_rtx/nv_execution_provider.h
@@ -285,6 +285,7 @@ class NvExecutionProvider : public IExecutionProvider {
                 IResourceAccountant* /* resource_accountant */) const override;
 
   int GetDeviceId() const { return device_id_; }
+  Status Sync() const;
 
   common::Status Compile(const std::vector<FusedNodeAndGraph>& fused_nodes_and_graphs,
                          std::vector<NodeComputeInfo>& node_compute_funcs) override;