diff --git a/CODEOWNERS b/CODEOWNERS
index 9a0c092eceb..2513e290230 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -630,8 +630,8 @@ build.json @home-assistant/supervisor
 /tests/components/luftdaten/ @fabaff @frenck
 /homeassistant/components/lupusec/ @majuss
 /homeassistant/components/lutron/ @JonGilmore
-/homeassistant/components/lutron_caseta/ @swails @bdraco
-/tests/components/lutron_caseta/ @swails @bdraco
+/homeassistant/components/lutron_caseta/ @swails @bdraco @danaues
+/tests/components/lutron_caseta/ @swails @bdraco @danaues
 /homeassistant/components/lyric/ @timmo001
 /tests/components/lyric/ @timmo001
 /homeassistant/components/mastodon/ @fabaff
diff --git a/homeassistant/components/lutron_caseta/__init__.py b/homeassistant/components/lutron_caseta/__init__.py
index 5653504c98a..bcbaedeb8d1 100644
--- a/homeassistant/components/lutron_caseta/__init__.py
+++ b/homeassistant/components/lutron_caseta/__init__.py
@@ -387,6 +387,13 @@ class LutronCasetaDeviceUpdatableEntity(LutronCasetaDevice):
         self._device = self._smartbridge.get_device_by_id(self.device_id)
         _LOGGER.debug(self._device)
 
+    @property
+    def unique_id(self):
+        """Return a unique identifier if serial number is None."""
+        if self.serial is None:
+            return f"{self._bridge_unique_id}_{self.device_id}"
+        return super().unique_id
+
 
 def _id_to_identifier(lutron_id: str) -> tuple[str, str]:
     """Convert a lutron caseta identifier to a device identifier."""
diff --git a/homeassistant/components/lutron_caseta/manifest.json b/homeassistant/components/lutron_caseta/manifest.json
index 206d8b51233..c80d0deb794 100644
--- a/homeassistant/components/lutron_caseta/manifest.json
+++ b/homeassistant/components/lutron_caseta/manifest.json
@@ -8,7 +8,7 @@
   "homekit": {
     "models": ["Smart Bridge"]
   },
-  "codeowners": ["@swails", "@bdraco"],
+  "codeowners": ["@swails", "@bdraco", "@danaues"],
   "iot_class": "local_push",
   "loggers": ["pylutron_caseta"]
 }
diff --git a/tests/components/lutron_caseta/__init__.py b/tests/components/lutron_caseta/__init__.py
index ace4066ae3b..91ddfe26fb5 100644
--- a/tests/components/lutron_caseta/__init__.py
+++ b/tests/components/lutron_caseta/__init__.py
@@ -1,6 +1,103 @@
 """Tests for the Lutron Caseta integration."""
 
 
+from unittest.mock import patch
+
+from homeassistant.components.lutron_caseta import DOMAIN
+from homeassistant.components.lutron_caseta.const import (
+    CONF_CA_CERTS,
+    CONF_CERTFILE,
+    CONF_KEYFILE,
+)
+from homeassistant.const import CONF_HOST
+
+from tests.common import MockConfigEntry
+
+ENTRY_MOCK_DATA = {
+    CONF_HOST: "1.1.1.1",
+    CONF_KEYFILE: "",
+    CONF_CERTFILE: "",
+    CONF_CA_CERTS: "",
+}
+
+_LEAP_DEVICE_TYPES = {
+    "light": [
+        "WallDimmer",
+        "PlugInDimmer",
+        "InLineDimmer",
+        "SunnataDimmer",
+        "TempInWallPaddleDimmer",
+        "WallDimmerWithPreset",
+        "Dimmed",
+    ],
+    "switch": [
+        "WallSwitch",
+        "OutdoorPlugInSwitch",
+        "PlugInSwitch",
+        "InLineSwitch",
+        "PowPakSwitch",
+        "SunnataSwitch",
+        "TempInWallPaddleSwitch",
+        "Switched",
+    ],
+    "fan": [
+        "CasetaFanSpeedController",
+        "MaestroFanSpeedController",
+        "FanSpeed",
+    ],
+    "cover": [
+        "SerenaHoneycombShade",
+        "SerenaRollerShade",
+        "TriathlonHoneycombShade",
+        "TriathlonRollerShade",
+        "QsWirelessShade",
+        "QsWirelessHorizontalSheerBlind",
+        "QsWirelessWoodBlind",
+        "RightDrawDrape",
+        "Shade",
+        "SerenaTiltOnlyWoodBlind",
+    ],
+    "sensor": [
+        "Pico1Button",
+        "Pico2Button",
+        "Pico2ButtonRaiseLower",
+        "Pico3Button",
+        "Pico3ButtonRaiseLower",
+        "Pico4Button",
+        "Pico4ButtonScene",
+        "Pico4ButtonZone",
+        "Pico4Button2Group",
+        "FourGroupRemote",
+        "SeeTouchTabletopKeypad",
+        "SunnataKeypad",
+        "SunnataKeypad_2Button",
+        "SunnataKeypad_3ButtonRaiseLower",
+        "SunnataKeypad_4Button",
+        "SeeTouchHybridKeypad",
+        "SeeTouchInternational",
+        "SeeTouchKeypad",
+        "HomeownerKeypad",
+        "GrafikTHybridKeypad",
+        "AlisseKeypad",
+        "PalladiomKeypad",
+    ],
+}
+
+
+async def async_setup_integration(hass, mock_bridge) -> MockConfigEntry:
+    """Set up a mock bridge."""
+    mock_entry = MockConfigEntry(domain=DOMAIN, data=ENTRY_MOCK_DATA)
+    mock_entry.add_to_hass(hass)
+
+    with patch(
+        "homeassistant.components.lutron_caseta.Smartbridge.create_tls"
+    ) as create_tls:
+        create_tls.return_value = mock_bridge(can_connect=True)
+        await hass.config_entries.async_setup(mock_entry.entry_id)
+        await hass.async_block_till_done()
+    return mock_entry
+
+
 class MockBridge:
     """Mock Lutron bridge that emulates configured connected status."""
 
@@ -12,26 +109,120 @@ class MockBridge:
         self.areas = {}
         self.occupancy_groups = {}
         self.scenes = self.get_scenes()
-        self.devices = self.get_devices()
+        self.devices = self.load_devices()
 
     async def connect(self):
         """Connect the mock bridge."""
         if self.can_connect:
             self.is_currently_connected = True
 
+    def add_subscriber(self, device_id: str, callback_):
+        """Mock a listener to be notified of state changes."""
+
     def is_connected(self):
         """Return whether the mock bridge is connected."""
         return self.is_currently_connected
 
-    def get_devices(self):
-        """Return devices on the bridge."""
+    def load_devices(self):
+        """Load mock devices into self.devices."""
         return {
-            "1": {"serial": 1234, "name": "bridge", "model": "model", "type": "type"}
+            "1": {"serial": 1234, "name": "bridge", "model": "model", "type": "type"},
+            "801": {
+                "device_id": "801",
+                "current_state": 100,
+                "fan_speed": None,
+                "zone": "801",
+                "name": "Basement Bedroom_Main Lights",
+                "button_groups": None,
+                "type": "Dimmed",
+                "model": None,
+                "serial": None,
+                "tilt": None,
+            },
+            "802": {
+                "device_id": "802",
+                "current_state": 100,
+                "fan_speed": None,
+                "zone": "802",
+                "name": "Basement Bedroom_Left Shade",
+                "button_groups": None,
+                "type": "SerenaRollerShade",
+                "model": None,
+                "serial": None,
+                "tilt": None,
+            },
+            "803": {
+                "device_id": "803",
+                "current_state": 100,
+                "fan_speed": None,
+                "zone": "803",
+                "name": "Basement Bathroom_Exhaust Fan",
+                "button_groups": None,
+                "type": "Switched",
+                "model": None,
+                "serial": None,
+                "tilt": None,
+            },
+            "804": {
+                "device_id": "804",
+                "current_state": 100,
+                "fan_speed": None,
+                "zone": "804",
+                "name": "Master Bedroom_Ceiling Fan",
+                "button_groups": None,
+                "type": "FanSpeed",
+                "model": None,
+                "serial": None,
+                "tilt": None,
+            },
+            "901": {
+                "device_id": "901",
+                "current_state": 100,
+                "fan_speed": None,
+                "zone": "901",
+                "name": "Kitchen_Main Lights",
+                "button_groups": None,
+                "type": "WallDimmer",
+                "model": None,
+                "serial": 5442321,
+                "tilt": None,
+            },
         }
 
-    def get_devices_by_domain(self, domain):
-        """Return devices on the bridge."""
-        return {}
+    def get_devices(self) -> dict[str, dict]:
+        """Will return all known devices connected to the Smart Bridge."""
+        return self.devices
+
+    def get_devices_by_domain(self, domain: str) -> list[dict]:
+        """
+        Return a list of devices for the given domain.
+
+        :param domain: one of 'light', 'switch', 'cover', 'fan' or 'sensor'
+        :returns list of zero or more of the devices
+        """
+        types = _LEAP_DEVICE_TYPES.get(domain, None)
+
+        # return immediately if not a supported domain
+        if types is None:
+            return []
+
+        return self.get_devices_by_types(types)
+
+    def get_devices_by_type(self, type_: str) -> list[dict]:
+        """
+        Will return all devices of a given device type.
+
+        :param type_: LEAP device type, e.g. WallSwitch
+        """
+        return [device for device in self.devices.values() if device["type"] == type_]
+
+    def get_devices_by_types(self, types: list[str]) -> list[dict]:
+        """
+        Will return all devices for a list of given device types.
+
+        :param types: list of LEAP device types such as WallSwitch, WallDimmer
+        """
+        return [device for device in self.devices.values() if device["type"] in types]
 
     def get_scenes(self):
         """Return scenes on the bridge."""
diff --git a/tests/components/lutron_caseta/test_config_flow.py b/tests/components/lutron_caseta/test_config_flow.py
index b5e8271d351..d1997051e26 100644
--- a/tests/components/lutron_caseta/test_config_flow.py
+++ b/tests/components/lutron_caseta/test_config_flow.py
@@ -20,7 +20,7 @@ from homeassistant.components.lutron_caseta.const import (
 )
 from homeassistant.const import CONF_HOST
 
-from . import MockBridge
+from . import ENTRY_MOCK_DATA, MockBridge
 
 from tests.common import MockConfigEntry
 
@@ -151,13 +151,7 @@ async def test_bridge_invalid_ssl_error(hass):
 async def test_duplicate_bridge_import(hass):
     """Test that creating a bridge entry with a duplicate host errors."""
 
-    entry_mock_data = {
-        CONF_HOST: "1.1.1.1",
-        CONF_KEYFILE: "",
-        CONF_CERTFILE: "",
-        CONF_CA_CERTS: "",
-    }
-    mock_entry = MockConfigEntry(domain=DOMAIN, data=entry_mock_data)
+    mock_entry = MockConfigEntry(domain=DOMAIN, data=ENTRY_MOCK_DATA)
     mock_entry.add_to_hass(hass)
 
     with patch(
@@ -168,7 +162,7 @@ async def test_duplicate_bridge_import(hass):
         result = await hass.config_entries.flow.async_init(
             DOMAIN,
             context={"source": config_entries.SOURCE_IMPORT},
-            data=entry_mock_data,
+            data=ENTRY_MOCK_DATA,
         )
 
     assert result["type"] == data_entry_flow.FlowResultType.ABORT
diff --git a/tests/components/lutron_caseta/test_cover.py b/tests/components/lutron_caseta/test_cover.py
new file mode 100644
index 00000000000..ef5fc2a5228
--- /dev/null
+++ b/tests/components/lutron_caseta/test_cover.py
@@ -0,0 +1,19 @@
+"""Tests for the Lutron Caseta integration."""
+
+
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers import entity_registry as er
+
+from . import MockBridge, async_setup_integration
+
+
+async def test_cover_unique_id(hass: HomeAssistant) -> None:
+    """Test a light unique id."""
+    await async_setup_integration(hass, MockBridge)
+
+    cover_entity_id = "cover.basement_bedroom_left_shade"
+
+    entity_registry = er.async_get(hass)
+
+    # Assert that Caseta covers will have the bridge serial hash and the zone id as the uniqueID
+    assert entity_registry.async_get(cover_entity_id).unique_id == "000004d2_802"
diff --git a/tests/components/lutron_caseta/test_diagnostics.py b/tests/components/lutron_caseta/test_diagnostics.py
index 89fcb65df9d..42fc1dac5c1 100644
--- a/tests/components/lutron_caseta/test_diagnostics.py
+++ b/tests/components/lutron_caseta/test_diagnostics.py
@@ -48,7 +48,67 @@ async def test_diagnostics(hass, hass_client) -> None:
                     "name": "bridge",
                     "serial": 1234,
                     "type": "type",
-                }
+                },
+                "801": {
+                    "device_id": "801",
+                    "current_state": 100,
+                    "fan_speed": None,
+                    "zone": "801",
+                    "name": "Basement Bedroom_Main Lights",
+                    "button_groups": None,
+                    "type": "Dimmed",
+                    "model": None,
+                    "serial": None,
+                    "tilt": None,
+                },
+                "802": {
+                    "device_id": "802",
+                    "current_state": 100,
+                    "fan_speed": None,
+                    "zone": "802",
+                    "name": "Basement Bedroom_Left Shade",
+                    "button_groups": None,
+                    "type": "SerenaRollerShade",
+                    "model": None,
+                    "serial": None,
+                    "tilt": None,
+                },
+                "803": {
+                    "device_id": "803",
+                    "current_state": 100,
+                    "fan_speed": None,
+                    "zone": "803",
+                    "name": "Basement Bathroom_Exhaust Fan",
+                    "button_groups": None,
+                    "type": "Switched",
+                    "model": None,
+                    "serial": None,
+                    "tilt": None,
+                },
+                "804": {
+                    "device_id": "804",
+                    "current_state": 100,
+                    "fan_speed": None,
+                    "zone": "804",
+                    "name": "Master Bedroom_Ceiling Fan",
+                    "button_groups": None,
+                    "type": "FanSpeed",
+                    "model": None,
+                    "serial": None,
+                    "tilt": None,
+                },
+                "901": {
+                    "device_id": "901",
+                    "current_state": 100,
+                    "fan_speed": None,
+                    "zone": "901",
+                    "name": "Kitchen_Main Lights",
+                    "button_groups": None,
+                    "type": "WallDimmer",
+                    "model": None,
+                    "serial": 5442321,
+                    "tilt": None,
+                },
             },
             "occupancy_groups": {},
             "scenes": {},
diff --git a/tests/components/lutron_caseta/test_fan.py b/tests/components/lutron_caseta/test_fan.py
new file mode 100644
index 00000000000..f9c86cc9c58
--- /dev/null
+++ b/tests/components/lutron_caseta/test_fan.py
@@ -0,0 +1,19 @@
+"""Tests for the Lutron Caseta integration."""
+
+
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers import entity_registry as er
+
+from . import MockBridge, async_setup_integration
+
+
+async def test_fan_unique_id(hass: HomeAssistant) -> None:
+    """Test a light unique id."""
+    await async_setup_integration(hass, MockBridge)
+
+    fan_entity_id = "fan.master_bedroom_ceiling_fan"
+
+    entity_registry = er.async_get(hass)
+
+    # Assert that Caseta covers will have the bridge serial hash and the zone id as the uniqueID
+    assert entity_registry.async_get(fan_entity_id).unique_id == "000004d2_804"
diff --git a/tests/components/lutron_caseta/test_light.py b/tests/components/lutron_caseta/test_light.py
new file mode 100644
index 00000000000..6449ce04832
--- /dev/null
+++ b/tests/components/lutron_caseta/test_light.py
@@ -0,0 +1,27 @@
+"""Tests for the Lutron Caseta integration."""
+
+
+from homeassistant.const import STATE_ON
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers import entity_registry as er
+
+from . import MockBridge, async_setup_integration
+
+
+async def test_light_unique_id(hass: HomeAssistant) -> None:
+    """Test a light unique id."""
+    await async_setup_integration(hass, MockBridge)
+
+    ra3_entity_id = "light.basement_bedroom_main_lights"
+    caseta_entity_id = "light.kitchen_main_lights"
+
+    entity_registry = er.async_get(hass)
+
+    # Assert that RA3 lights will have the bridge serial hash and the zone id as the uniqueID
+    assert entity_registry.async_get(ra3_entity_id).unique_id == "000004d2_801"
+
+    # Assert that Caseta lights will have the serial number as the uniqueID
+    assert entity_registry.async_get(caseta_entity_id).unique_id == "5442321"
+
+    state = hass.states.get(ra3_entity_id)
+    assert state.state == STATE_ON
diff --git a/tests/components/lutron_caseta/test_switch.py b/tests/components/lutron_caseta/test_switch.py
new file mode 100644
index 00000000000..842aca94423
--- /dev/null
+++ b/tests/components/lutron_caseta/test_switch.py
@@ -0,0 +1,18 @@
+"""Tests for the Lutron Caseta integration."""
+
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers import entity_registry as er
+
+from . import MockBridge, async_setup_integration
+
+
+async def test_switch_unique_id(hass: HomeAssistant) -> None:
+    """Test a light unique id."""
+    await async_setup_integration(hass, MockBridge)
+
+    switch_entity_id = "switch.basement_bathroom_exhaust_fan"
+
+    entity_registry = er.async_get(hass)
+
+    # Assert that Caseta covers will have the bridge serial hash and the zone id as the uniqueID
+    assert entity_registry.async_get(switch_entity_id).unique_id == "000004d2_803"