diff --git a/.gitignore b/.gitignore
index 6476dbe1..a7c04f14 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ composer.lock
 stubs
 *.ast
 node_modules/
+/nbproject/
\ No newline at end of file
diff --git a/src/CompletionProvider.php b/src/CompletionProvider.php
index 44cf5b8e..ff640f0b 100644
--- a/src/CompletionProvider.php
+++ b/src/CompletionProvider.php
@@ -237,6 +237,7 @@ public function provideCompletion(PhpDocument $doc, Position $pos, CompletionCon
                 $this->definitionResolver->resolveExpressionNodeToType($node->dereferencableExpression)
             );
 
+            $isInMethodDeclaration = null !== $node->getFirstAncestor(\Microsoft\PhpParser\Node\MethodDeclaration::class);
             // Add the object access operator to only get members of all parents
             $prefixes = [];
             foreach ($this->expandParentFqns($fqns) as $prefix) {
@@ -246,12 +247,14 @@ public function provideCompletion(PhpDocument $doc, Position $pos, CompletionCon
             // Collect all definitions that match any of the prefixes
             foreach ($this->index->getDefinitions() as $fqn => $def) {
                 foreach ($prefixes as $prefix) {
-                    if (substr($fqn, 0, strlen($prefix)) === $prefix && $def->isMember) {
+                    if (substr($fqn, 0, strlen($prefix)) === $prefix && 
+                        $def->isMember &&
+                        $def->isVisible($prefix, $prefixes[0], $isInMethodDeclaration)) {
                         $list->items[] = CompletionItemFactory::fromDefinition($def);
                     }
                 }
             }
-
+            
         } elseif (
             ($scoped = $node->parent) instanceof Node\Expression\ScopedPropertyAccessExpression ||
             ($scoped = $node) instanceof Node\Expression\ScopedPropertyAccessExpression
@@ -269,7 +272,7 @@ public function provideCompletion(PhpDocument $doc, Position $pos, CompletionCon
             $fqns = FqnUtilities\getFqnsFromType(
                 $classType = $this->definitionResolver->resolveExpressionNodeToType($scoped->scopeResolutionQualifier)
             );
-
+            $isInMethodDeclaration = null !== $node->getFirstAncestor(\Microsoft\PhpParser\Node\MethodDeclaration::class);
             // Append :: operator to only get static members of all parents
             $prefixes = [];
             foreach ($this->expandParentFqns($fqns) as $prefix) {
@@ -279,7 +282,9 @@ public function provideCompletion(PhpDocument $doc, Position $pos, CompletionCon
             // Collect all definitions that match any of the prefixes
             foreach ($this->index->getDefinitions() as $fqn => $def) {
                 foreach ($prefixes as $prefix) {
-                    if (substr(strtolower($fqn), 0, strlen($prefix)) === strtolower($prefix) && $def->isMember) {
+                    if (substr(strtolower($fqn), 0, strlen($prefix)) === strtolower($prefix) &&
+                        $def->isMember &&
+                        $def->isVisible($prefix, $prefixes[0], $isInMethodDeclaration)) {
                         $list->items[] = CompletionItemFactory::fromDefinition($def);
                     }
                 }
diff --git a/src/Definition.php b/src/Definition.php
index 9ea27f9c..39636bb4 100644
--- a/src/Definition.php
+++ b/src/Definition.php
@@ -133,4 +133,35 @@ public function getAncestorDefinitions(ReadableIndex $index, bool $includeSelf =
             }
         }
     }
+   
+    /**
+     * Checks the definition's visibility.
+     * @param string $match Owner of the FQNS
+     * @param string $caller Descendant of the FQNS owner
+     * @param bool $isInMethodDeclaration checking if the call is from inside a 
+     * method
+     * @return bool
+     */
+    public function isVisible(string $match, string $caller, bool $isInMethodDeclaration): bool
+    {     
+        if ($isInMethodDeclaration) {
+            if ($match !== $caller && $this->isPrivate()) {
+                return false;
+            }
+        } else if ($this->isProtected() || $this->isPrivate()) {
+                return false;
+        }
+        
+        return true;
+    }
+
+    private function isPrivate(): bool
+    {
+        return 'private' === substr($this->declarationLine, 0, 7);
+    }
+
+    private function isProtected(): bool
+    {
+        return 'protected' === substr($this->declarationLine, 0, 9);
+    }
 }