content-page.php

<?php
/**
 * Template part for displaying page content in page.php
 *
 * @link https://developer.wordpress.org/themes/basics/template-hierarchy/
 *
 * @package hdms
 */
?>

<article id="post-<?php the_ID(); ?>" <?php post_class(); ?>>

    <div class="container fat-margin">
        <div class="entry-content">
            <?php
            the_content();
            ?>
            <?php echo do_shortcode("[my_shortcode]"); ?>
            <p><strong>the above lives in php calling:</strong></p>
            <pre>
                &lt;?php echo do_shortcode("[my_shortcode]"); ?&gt;
            </pre>

        </div><!-- .entry-content -->
    </div><!-- .container -->
</article><!-- #post-<?php the_ID(); ?> -->

page.php

<?php
/**
 *Template Name: Page
 *
 */

global $pageType;
$pageType = "tier";

get_header();

get_template_part( 'template-parts/navigation');

?>
<main id="main" class="main-container">
    <?php
        while ( have_posts() ) :
            the_post();

            get_template_part( 'template-parts/content', 'page' );

        endwhile; // End of the loop.
    ?>
</main>

<?php

get_footer();