diff --git a/frontend_tests/node_tests/stream_data.js b/frontend_tests/node_tests/stream_data.js
index 9d52b6b6ef..d22a4e493b 100644
--- a/frontend_tests/node_tests/stream_data.js
+++ b/frontend_tests/node_tests/stream_data.js
@@ -645,60 +645,60 @@ run_test('notifications', () => {
     stream_data.clear_subscriptions();
     stream_data.add_sub(india);
 
-    assert(!stream_data.receives_notifications('Indiana', "desktop_notifications"));
-    assert(!stream_data.receives_notifications('Indiana', "audible_notifications"));
+    assert(!stream_data.receives_notifications(india.stream_id, "desktop_notifications"));
+    assert(!stream_data.receives_notifications(india.stream_id, "audible_notifications"));
 
     page_params.enable_stream_desktop_notifications = true;
     page_params.enable_stream_audible_notifications = true;
-    assert(stream_data.receives_notifications('India', "desktop_notifications"));
-    assert(stream_data.receives_notifications('India', "audible_notifications"));
+    assert(stream_data.receives_notifications(india.stream_id, "desktop_notifications"));
+    assert(stream_data.receives_notifications(india.stream_id, "audible_notifications"));
 
     page_params.enable_stream_desktop_notifications = false;
     page_params.enable_stream_audible_notifications = false;
-    assert(!stream_data.receives_notifications('India', "desktop_notifications"));
-    assert(!stream_data.receives_notifications('India', "audible_notifications"));
+    assert(!stream_data.receives_notifications(india.stream_id, "desktop_notifications"));
+    assert(!stream_data.receives_notifications(india.stream_id, "audible_notifications"));
 
     india.desktop_notifications = true;
     india.audible_notifications = true;
-    assert(stream_data.receives_notifications('India', "desktop_notifications"));
-    assert(stream_data.receives_notifications('India', "audible_notifications"));
+    assert(stream_data.receives_notifications(india.stream_id, "desktop_notifications"));
+    assert(stream_data.receives_notifications(india.stream_id, "audible_notifications"));
 
     india.desktop_notifications = false;
     india.audible_notifications = false;
     page_params.enable_stream_desktop_notifications = true;
     page_params.enable_stream_audible_notifications = true;
-    assert(!stream_data.receives_notifications('India', "desktop_notifications"));
-    assert(!stream_data.receives_notifications('India', "audible_notifications"));
+    assert(!stream_data.receives_notifications(india.stream_id, "desktop_notifications"));
+    assert(!stream_data.receives_notifications(india.stream_id, "audible_notifications"));
 
     page_params.wildcard_mentions_notify = true;
-    assert(stream_data.receives_notifications('India', "wildcard_mentions_notify"));
+    assert(stream_data.receives_notifications(india.stream_id, "wildcard_mentions_notify"));
     page_params.wildcard_mentions_notify = false;
-    assert(!stream_data.receives_notifications('India', "wildcard_mentions_notify"));
+    assert(!stream_data.receives_notifications(india.stream_id, "wildcard_mentions_notify"));
     india.wildcard_mentions_notify = true;
-    assert(stream_data.receives_notifications('India', "wildcard_mentions_notify"));
+    assert(stream_data.receives_notifications(india.stream_id, "wildcard_mentions_notify"));
     page_params.wildcard_mentions_notify = true;
     india.wildcard_mentions_notify = false;
-    assert(!stream_data.receives_notifications('India', "wildcard_mentions_notify"));
+    assert(!stream_data.receives_notifications(india.stream_id, "wildcard_mentions_notify"));
 
     page_params.enable_stream_push_notifications = true;
-    assert(stream_data.receives_notifications('India', "push_notifications"));
+    assert(stream_data.receives_notifications(india.stream_id, "push_notifications"));
     page_params.enable_stream_push_notifications = false;
-    assert(!stream_data.receives_notifications('India', "push_notifications"));
+    assert(!stream_data.receives_notifications(india.stream_id, "push_notifications"));
     india.push_notifications = true;
-    assert(stream_data.receives_notifications('India', "push_notifications"));
+    assert(stream_data.receives_notifications(india.stream_id, "push_notifications"));
     page_params.enable_stream_push_notifications = true;
     india.push_notifications = false;
-    assert(!stream_data.receives_notifications('India', "push_notifications"));
+    assert(!stream_data.receives_notifications(india.stream_id, "push_notifications"));
 
     page_params.enable_stream_email_notifications = true;
-    assert(stream_data.receives_notifications('India', "email_notifications"));
+    assert(stream_data.receives_notifications(india.stream_id, "email_notifications"));
     page_params.enable_stream_email_notifications = false;
-    assert(!stream_data.receives_notifications('India', "email_notifications"));
+    assert(!stream_data.receives_notifications(india.stream_id, "email_notifications"));
     india.email_notifications = true;
-    assert(stream_data.receives_notifications('India', "email_notifications"));
+    assert(stream_data.receives_notifications(india.stream_id, "email_notifications"));
     page_params.enable_stream_email_notifications = true;
     india.email_notifications = false;
-    assert(!stream_data.receives_notifications('India', "email_notifications"));
+    assert(!stream_data.receives_notifications(india.stream_id, "email_notifications"));
 
     const canada = {
         stream_id: 103,
diff --git a/static/js/notifications.js b/static/js/notifications.js
index 295a720c46..10eb6d9c83 100644
--- a/static/js/notifications.js
+++ b/static/js/notifications.js
@@ -467,7 +467,7 @@ exports.should_send_desktop_notification = function (message) {
     // For streams, send if desktop notifications are enabled for all
     // message on this stream.
     if (message.type === "stream" &&
-        stream_data.receives_notifications(message.stream, "desktop_notifications")) {
+        stream_data.receives_notifications(message.stream_id, "desktop_notifications")) {
         return true;
     }
 
@@ -493,7 +493,7 @@ exports.should_send_desktop_notification = function (message) {
 
     // wildcard mentions
     if (message.mentioned &&
-            stream_data.receives_notifications(message.stream, "wildcard_mentions_notify")) {
+            stream_data.receives_notifications(message.stream_id, "wildcard_mentions_notify")) {
         return true;
     }
 
@@ -504,7 +504,7 @@ exports.should_send_audible_notification = function (message) {
     // For streams, ding if sounds are enabled for all messages on
     // this stream.
     if (message.type === "stream" &&
-        stream_data.receives_notifications(message.stream, "audible_notifications")) {
+        stream_data.receives_notifications(message.stream_id, "audible_notifications")) {
         return true;
     }
 
@@ -529,7 +529,7 @@ exports.should_send_audible_notification = function (message) {
 
     // wildcard mentions
     if (message.mentioned &&
-            stream_data.receives_notifications(message.stream, "wildcard_mentions_notify")) {
+            stream_data.receives_notifications(message.stream_id, "wildcard_mentions_notify")) {
         return true;
     }
 
diff --git a/static/js/stream_data.js b/static/js/stream_data.js
index b2292a5be4..52609097ab 100644
--- a/static/js/stream_data.js
+++ b/static/js/stream_data.js
@@ -431,8 +431,8 @@ exports.update_message_retention_setting  = function (sub, message_retention_day
     sub.message_retention_days = message_retention_days;
 };
 
-exports.receives_notifications = function (stream_name, notification_name) {
-    const sub = exports.get_sub(stream_name);
+exports.receives_notifications = function (stream_id, notification_name) {
+    const sub = exports.get_sub_by_id(stream_id);
     if (sub === undefined) {
         return false;
     }
@@ -753,7 +753,7 @@ exports.get_unmatched_streams_for_notification_settings = function () {
         for (const notification_name of settings_config.stream_specific_notification_settings) {
             const prepend = notification_name === 'wildcard_mentions_notify' ? "" : "enable_stream_";
             const default_setting = page_params[prepend + notification_name];
-            const stream_setting = exports.receives_notifications(row.name, notification_name);
+            const stream_setting = exports.receives_notifications(row.stream_id, notification_name);
 
             settings_values[notification_name] = stream_setting;
             if (stream_setting !== default_setting) {
diff --git a/static/js/stream_ui_updates.js b/static/js/stream_ui_updates.js
index 0eb86dabe1..38bc59e8c8 100644
--- a/static/js/stream_ui_updates.js
+++ b/static/js/stream_ui_updates.js
@@ -103,7 +103,7 @@ exports.update_notification_setting_checkbox = function (notification_name) {
     }
     const stream_id = stream_row.data('stream-id');
     $(`#${notification_name}_${stream_id}`).prop("checked", stream_data.receives_notifications(
-        stream_data.maybe_get_stream_name(stream_id), notification_name));
+        stream_id, notification_name));
 };
 
 exports.update_stream_row_in_settings_tab = function (sub) {