diff --git a/.github/scripts/GitHub.py b/.github/scripts/GitHub.py
index 43eb5c7e4f..bc0f355206 100644
--- a/.github/scripts/GitHub.py
+++ b/.github/scripts/GitHub.py
@@ -202,12 +202,20 @@ def add_reviewers_to_pr(
 
     pr_author = pr.user.login.strip()
 
-    while pr_author in user_names:
-        user_names.remove(pr_author)
+    current_pr_requested_reviewers = [
+        r.login.strip() for r in pr.get_review_requests()[0]
+    ]
+    current_pr_reviewed_reviewers = [r.user.login.strip() for r in pr.get_reviews()]
+    current_pr_reviewers = list(
+        set(current_pr_requested_reviewers + current_pr_reviewed_reviewers)
+    )
 
     repo_collaborators = [c.login.strip() for c in repo_gh.get_collaborators()]
     non_collaborators = [u for u in user_names if u not in repo_collaborators]
 
+    excluded_pr_reviewers = [pr_author] + current_pr_reviewers + non_collaborators
+    new_pr_reviewers = [u for u in user_names if u not in excluded_pr_reviewers]
+
     if non_collaborators:
         print(
             f"::error title=User is not a Collaborator!::{', '.join(non_collaborators)}"
@@ -225,6 +233,12 @@ def add_reviewers_to_pr(
             f"Users requested:\n{', '.join(user_names)}",
         )
 
-    pr.create_review_request(reviewers=user_names)
+    # Add any new reviewers to the PR if needed.
+    if new_pr_reviewers:
+        print(
+            f"::debug title=Adding New PR Reviewers::" f"{', '.join(new_pr_reviewers)}"
+        )
 
-    return user_names
+        pr.create_review_request(reviewers=new_pr_reviewers)
+
+    return new_pr_reviewers
diff --git a/.github/workflows/request-reviews.yml b/.github/workflows/request-reviews.yml
index b358ae089f..9b0d126649 100644
--- a/.github/workflows/request-reviews.yml
+++ b/.github/workflows/request-reviews.yml
@@ -84,9 +84,28 @@ jobs:
 
             reviewers = GitHub.get_reviewers_for_range(WORKSPACE_PATH, GET_MAINTAINER_LOCAL_PATH, pr_commit_sha, pr_commit_sha)
             if not reviewers:
-                print("::notice title=No Reviewers Found!::No reviewers found for this PR.")
-                sys.exit(1)
+                print("::notice title=No New Reviewers Found!::No reviewers found for this PR.")
+                sys.exit(0)
 
-            print(f"::notice title=Reviewer List::Reviewers found for PR {os.environ['PR_NUMBER']}:\n{', '.join(reviewers)}")
+            print(
+                f"::notice title=Preliminary Reviewer List::Total reviewer candidates for "
+                f"PR {os.environ['PR_NUMBER']}: {', '.join(reviewers)}"
+            )
 
-            GitHub.add_reviewers_to_pr(os.environ['GH_TOKEN'], os.environ['ORG_NAME'], os.environ['REPO_NAME'], int(os.environ['PR_NUMBER']), reviewers)
+            new_reviewers = GitHub.add_reviewers_to_pr(
+                os.environ["GH_TOKEN"],
+                os.environ["ORG_NAME"],
+                os.environ["REPO_NAME"],
+                int(os.environ["PR_NUMBER"]),
+                reviewers,
+            )
+            if new_reviewers:
+                print(
+                    f"::notice title=New Reviewers Added::New reviewers requested for PR "
+                    f"{os.environ['PR_NUMBER']}: {', '.join(new_reviewers)}"
+                )
+            else:
+                print(
+                    "::notice title=No New Reviewers Added::No reviewers were found that "
+                    "should be newly requested."
+                )