This rate is quite low, considering the skills and experience listed. Based on national averages for medical assistants in the US, the hourly rate can range from $20 to $40. However, this person's experience in hospitals and healthcare settings, as well as their customer service skills, could justify a higher rate. Without more specific information about their location, industry demand, or level of expertise, it's difficult to estimate a more accurate rate. A more realistic estimate would be in the range of $30 to $50 per hour.