diff --git a/src/main/java/com/example/sinitto/callback/controller/CallbackController.java b/src/main/java/com/example/sinitto/callback/controller/CallbackController.java
index 13dc1ab5..5472dabe 100644
--- a/src/main/java/com/example/sinitto/callback/controller/CallbackController.java
+++ b/src/main/java/com/example/sinitto/callback/controller/CallbackController.java
@@ -1,5 +1,6 @@
 package com.example.sinitto.callback.controller;
 
+import com.example.sinitto.callback.dto.CallbackForSinittoResponse;
 import com.example.sinitto.callback.dto.CallbackResponse;
 import com.example.sinitto.callback.dto.CallbackUsageHistoryResponse;
 import com.example.sinitto.callback.service.CallbackService;
@@ -89,11 +90,12 @@ public ResponseEntity<Page<CallbackUsageHistoryResponse>> getAcceptedCallback(@M
         return ResponseEntity.ok(callbackService.getCallbackHistoryOfGuard(memberId, pageable));
     }
 
-    @Operation(summary = "콜백 단건 조회", description = "콜백 id 로 콜백을 단건 조회합니다.")
+    @Operation(summary = "콜백 단건 조회 (시니또용)", description = "콜백 id 로 콜백을 단건 조회합니다.")
     @GetMapping("/{callbackId}")
-    public ResponseEntity<CallbackResponse> getCallback(@PathVariable("callbackId") Long callbackId) {
+    public ResponseEntity<CallbackForSinittoResponse> getCallback(@MemberId Long memberId,
+                                                                  @PathVariable("callbackId") Long callbackId) {
 
-        return ResponseEntity.ok(callbackService.getCallback(callbackId));
+        return ResponseEntity.ok(callbackService.getCallbackForSinitto(memberId, callbackId));
     }
 
 }
diff --git a/src/main/java/com/example/sinitto/callback/dto/CallbackForSinittoResponse.java b/src/main/java/com/example/sinitto/callback/dto/CallbackForSinittoResponse.java
new file mode 100644
index 00000000..76600943
--- /dev/null
+++ b/src/main/java/com/example/sinitto/callback/dto/CallbackForSinittoResponse.java
@@ -0,0 +1,14 @@
+package com.example.sinitto.callback.dto;
+
+import java.time.LocalDateTime;
+
+public record CallbackForSinittoResponse(
+        Long callbackId,
+        String seniorName,
+        LocalDateTime postTime,
+        String status,
+        Long seniorId,
+        boolean isAssignedToSelf,
+        String seniorPhoneNumber
+) {
+}
\ No newline at end of file
diff --git a/src/main/java/com/example/sinitto/callback/service/CallbackService.java b/src/main/java/com/example/sinitto/callback/service/CallbackService.java
index c43ace73..6fcb06da 100644
--- a/src/main/java/com/example/sinitto/callback/service/CallbackService.java
+++ b/src/main/java/com/example/sinitto/callback/service/CallbackService.java
@@ -1,5 +1,6 @@
 package com.example.sinitto.callback.service;
 
+import com.example.sinitto.callback.dto.CallbackForSinittoResponse;
 import com.example.sinitto.callback.dto.CallbackResponse;
 import com.example.sinitto.callback.dto.CallbackUsageHistoryResponse;
 import com.example.sinitto.callback.entity.Callback;
@@ -228,12 +229,16 @@ public Page<CallbackUsageHistoryResponse> getCallbackHistoryOfGuard(Long memberI
                 .map(callback -> new CallbackUsageHistoryResponse(callback.getId(), callback.getSeniorName(), callback.getPostTime(), callback.getStatus()));
     }
 
-    public CallbackResponse getCallback(Long callbackId) {
+    public CallbackForSinittoResponse getCallbackForSinitto(Long memberId, Long callbackId) {
 
         Callback callback = callbackRepository.findById(callbackId)
                 .orElseThrow(() -> new NotFoundException("해당 콜백 id에 해당하는 콜백이 없습니다."));
 
-        return new CallbackResponse(callback.getId(), callback.getSeniorName(), callback.getPostTime(), callback.getStatus(), callback.getSeniorId());
+        if (callback.getAssignedMemberId().equals(memberId)) {
+            return new CallbackForSinittoResponse(callback.getId(), callback.getSeniorName(), callback.getPostTime(), callback.getStatus(), callback.getSeniorId(), true, callback.getSenior().getPhoneNumber());
+        }
+
+        return new CallbackForSinittoResponse(callback.getId(), callback.getSeniorName(), callback.getPostTime(), callback.getStatus(), callback.getSeniorId(), false, "");
     }
 
 }
diff --git a/src/main/java/com/example/sinitto/common/dummy/InitialData.java b/src/main/java/com/example/sinitto/common/dummy/InitialData.java
index 6f5997ff..4f828723 100644
--- a/src/main/java/com/example/sinitto/common/dummy/InitialData.java
+++ b/src/main/java/com/example/sinitto/common/dummy/InitialData.java
@@ -26,6 +26,7 @@
 import com.example.sinitto.sinitto.repository.SinittoBankInfoRepository;
 import org.springframework.boot.CommandLineRunner;
 import org.springframework.stereotype.Component;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.time.LocalDate;
 import java.time.LocalDateTime;
@@ -71,6 +72,7 @@ public InitialData(MemberRepository memberRepository, SeniorRepository seniorRep
     }
 
     @Override
+    @Transactional
     public void run(String... args) {
         initial();
         saveRefreshTokenToRedis();
@@ -298,20 +300,27 @@ private void initial() {
         //콜백
         callbackRepository.save(new Callback(Callback.Status.COMPLETE, senior1));
         callbackRepository.save(new Callback(Callback.Status.COMPLETE, senior1));
-        callbackRepository.save(new Callback(Callback.Status.WAITING, senior1));
+        Callback callback1 = callbackRepository.save(new Callback(Callback.Status.WAITING, senior1));
+        callback1.assignMember(1L);
+        callback1.changeStatusToInProgress();
 
         callbackRepository.save(new Callback(Callback.Status.COMPLETE, senior2));
         callbackRepository.save(new Callback(Callback.Status.COMPLETE, senior2));
-        callbackRepository.save(new Callback(Callback.Status.WAITING, senior2));
+        Callback callback2 = callbackRepository.save(new Callback(Callback.Status.WAITING, senior2));
+        callback2.assignMember(2L);
+        callback2.changeStatusToInProgress();
 
         callbackRepository.save(new Callback(Callback.Status.COMPLETE, senior3));
         callbackRepository.save(new Callback(Callback.Status.COMPLETE, senior3));
-        callbackRepository.save(new Callback(Callback.Status.WAITING, senior3));
+        Callback callback3 = callbackRepository.save(new Callback(Callback.Status.WAITING, senior3));
+        callback3.assignMember(3L);
+        callback3.changeStatusToInProgress();
 
         callbackRepository.save(new Callback(Callback.Status.COMPLETE, senior4));
         callbackRepository.save(new Callback(Callback.Status.COMPLETE, senior4));
         callbackRepository.save(new Callback(Callback.Status.WAITING, senior4));
 
+
         callbackRepository.save(new Callback(Callback.Status.COMPLETE, senior5));
         callbackRepository.save(new Callback(Callback.Status.COMPLETE, senior5));
         callbackRepository.save(new Callback(Callback.Status.WAITING, senior5));
diff --git a/src/test/java/com/example/sinitto/callback/service/CallbackServiceTest.java b/src/test/java/com/example/sinitto/callback/service/CallbackServiceTest.java
index 4fdf702b..7641c458 100644
--- a/src/test/java/com/example/sinitto/callback/service/CallbackServiceTest.java
+++ b/src/test/java/com/example/sinitto/callback/service/CallbackServiceTest.java
@@ -1,5 +1,6 @@
 package com.example.sinitto.callback.service;
 
+import com.example.sinitto.callback.dto.CallbackForSinittoResponse;
 import com.example.sinitto.callback.dto.CallbackResponse;
 import com.example.sinitto.callback.entity.Callback;
 import com.example.sinitto.callback.repository.CallbackRepository;
@@ -403,4 +404,53 @@ void localDateTimeBeforeCalculateTest() {
         assertTrue(일월1일13시00분.isBefore(일월3일13시10분.minusDays(2)));
         assertTrue(일월1일13시01분.isBefore(일월3일13시10분.minusDays(2)));
     }
+
+    @Test
+    @DisplayName("시니또용 콜백 단건 조회 - api 호출한 시니또 본인이 할당된 콜백일 경우")
+    void getCallbackForSinitto() {
+        //given
+        Long memberId = 1L;
+        Long callbackId = 1L;
+        Callback callback = mock(Callback.class);
+        Senior senior = mock(Senior.class);
+
+        when(callbackRepository.findById(callbackId)).thenReturn(Optional.of(callback));
+        when(callback.getAssignedMemberId()).thenReturn(1L);
+        when(callback.getId()).thenReturn(1L);
+        when(callback.getSeniorName()).thenReturn("SeniorName");
+        when(callback.getPostTime()).thenReturn(LocalDateTime.now());
+        when(callback.getStatus()).thenReturn(Callback.Status.WAITING.toString());
+        when(callback.getSeniorId()).thenReturn(1L);
+        when(callback.getSenior()).thenReturn(senior);
+        when(callback.getSenior().getPhoneNumber()).thenReturn("01012341234");
+
+        //when
+        CallbackForSinittoResponse result = callbackService.getCallbackForSinitto(memberId, callbackId);
+
+        //then
+        assertTrue(result.isAssignedToSelf());
+    }
+
+    @Test
+    @DisplayName("시니또용 콜백 단건 조회 - api 호출한 시니또 본인이 할당된 콜백이 아닌 경우")
+    void getCallbackForSinitto2() {
+        //given
+        Long memberId = 1L;
+        Long callbackId = 1L;
+        Callback callback = mock(Callback.class);
+
+        when(callbackRepository.findById(callbackId)).thenReturn(Optional.of(callback));
+        when(callback.getAssignedMemberId()).thenReturn(999L); // 여기서 시니또 본인에게 할당된 콜백이 아닌걸 확인
+        when(callback.getId()).thenReturn(1L);
+        when(callback.getSeniorName()).thenReturn("SeniorName");
+        when(callback.getPostTime()).thenReturn(LocalDateTime.now());
+        when(callback.getStatus()).thenReturn(Callback.Status.WAITING.toString());
+        when(callback.getSeniorId()).thenReturn(1L);
+
+        //when
+        CallbackForSinittoResponse result = callbackService.getCallbackForSinitto(memberId, callbackId);
+
+        //then
+        assertFalse(result.isAssignedToSelf());
+    }
 }