JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
<input type="checkbox" value="140" data-servico="dentista">140<br>
<input type="checkbox" value="130" data-servico="cardiologista">130<br>
<input type="checkbox" value="70" data-servico="oftalmologista">70<br>
<input name="totalValor" type="number">
<div class="servicos">
  
</div>

JavaScript

$('input[type="checkbox"]').on('change', function() {
   var total = 0;
   var servicos = '';
   $('input[type="checkbox"]:checked').each(function() {
      total += parseInt($(this).val());
      servicos += $(this).data('servico')+ '<br>';
   });
   $('input[name="totalValor"]').val(total);
   $('.servicos').html(servicos);
});