Use the following code to add new column and show data properly.
function add_user_columns_hospital( $column ) {
$column['hospital'] = 'Hospital';
return $column;
}
add_filter( 'manage_users_columns', 'add_user_columns_hospital' );
function modify_user_table_row_hospital( $val, $column_name, $user_id ) {
switch ($column_name) {
case 'hospital' :
return get_the_author_meta( 'user_registration_hospital', $user_id );
default:
}
return $val;
}
add_filter( 'manage_users_custom_column', 'new_modify_user_table_row', 10, 3 );