If you are late by up to 9 minutes for your appointment you are allowed to see the provider. But if you are late by 10 minutes or more then you may be marked as a no-show because the providers are booked out for the whole day and may not provide services for you. If the provider has availability for the later part of the day, then you may be able to see your provider the same day but later or else you have to reschedule for another day.