I believe it is pretty much standard everywhere to charge a patient for a missed appointment. After all, it is the patient's responsibility to either get there or advise the office they can't at least 24hrs beforehand. It is entirely up to the office/caregiver to decide on the amount. Remember, the office and caregiver lose money on patients that never show up. It is simply not fair to them. To cry foul of this is, well it is being disrespectful and self centered.