Return Local ID with Latitude and Longitude only - Google Maps JavaScript API

Good evening, my doubt refers to the following case:

I'm working with the google maps API V3, and I use services like Places, Geocoder and Matrix Distance. But I have a huge problem to return the user's current location ID (returned using the geolocation of maps), however it only returns me the Latitude and Longitude of the location, or I am not aware of returning other information.

        if (navigator.geolocation) { 
      navigator.geolocation.getCurrentPosition(function(position) {
        posAtual = { // recebe ltd e lngt
          lat: position.coords.latitude,
          lng: position.coords.longitude
        };

        var openedMarker = posAtual.lat + "<br>" + posAtual.lng;


      var markerAtual = addMarker({coords:posAtual, content:openedMarker}); // define o local do marker

      map.setCenter(posAtual); // centraliza posição atual se permitido pelo browser

      }, function() {
        handleLocationError(true, markerAtual, map.getCenter()); // se der erro volta pra localização antiga

      });
    return true;
    } else {
      // Browser doesn't support Geolocation ou NÃO foi aceito pelo user
      handleLocationError(false, markerAtual, map.getCenter());

    return false;
    }
    function handleLocationError(browserHasGeolocation, infoWindow, pos) { //Erro que sera exibido caso falhe
    infoWindow.setPosition(pos);
    infoWindow.setContent(browserHasGeolocation ?
                          'Error: The Geolocation service failed.' :
                          'Error: Your browser doesn\'t support geolocation.');

}

This is the code I use to fetch the current position, I tried to search the google documentation or even here in the OS, but without much success.

The API returns the Site ID whenever it is searched, in this case, with a place autocomplete field. But it does not happen when searching for a Latitude / Longitude coordinate.

Thank you for your attention.