According to a recent survey, 95.5% of respondents ...

... had received a medical bill from a doctor, hospital, or health care provider in the past 12 months. Of those, 60.5% rated their medical bills as confusing or very confusing. Their frustrations included the following:

• The relationship between bills from provider and the statements from insurance company: 50.6%
• Not sure if the total owed was correct: 49.4%
• The amount owed was a surprise: 48.8%
• Unexpected expenses that were thought to be covered by insurance: 46.1%
• Not sure if the insurance company had paid yet: 43.2%
• The bill arrived a long time after the date of service: 42.3%
• The relationship between the bill and insurance deductible: 35.1%
• Didn't understand the language on the bill: 23.5%
• Wasn't sure if everything listed on the bill really happened: 22.0%

Source: "A BILL YOU CAN UNDERSTAND RESEARCH REPORT," Mad*Pow, May 6, 2016, http://static1.squarespace.com/static/5715100cf8baf3c79d443859/t/5730e1c4f699bbe627603424/1462821330491/DesignChallenge_ResearchReport.pdf