Comma books appointments from 8am to 8pm daily. Please use one of the following methods to schedule your visit: t. 617.547.2700 e. info@comma-inc.com • Suggestions for your visit to Comma: Avoid eating a heavy meal for 45 minutes prior to your treatment. Allow ample time for parking. For your initial visit to Comma, please allow an additional 15 minutes to complete intake forms.