The Patient Side of the Denial

The denial reaches the patient as an explanation of benefits — a document that announces, in bold type, that it is not a bill, and then lists an amount the plan will not pay. What happens next has been measured. In early 2023, KFF fielded one of the largest consumer surveys on the experience of being insured in America: 58% of insured adults said they had run into a problem using their coverage in the previous twelve months, and 18% said their insurance had not paid for care they received and thought would be covered.¹

That 18% counts people, not claims, and one year, not a lifetime. It climbs with contact with the system: among patients with more than ten provider visits in a year, 27% experienced a denied claim. Employer coverage offered little shelter (21%), and marketplace plans none (20%).² The more medicine someone needs, the more likely they are to meet a denial.

What patients do next is the part a practice should read twice. Most did something: 84% of consumers with denied claims took action on their biggest insurance problem. KFF's own description of what that action looked like is “calling the insurance company or asking their doctor or a friend or family member for help.”² The doctor is on that list because that is where people go. What patients mostly did not do is use the formal machinery: 15% filed a formal appeal. Sixty-nine percent of those with denied claims did not know whether they had a right to appeal at all, and 86% did not know which government agency could help.²

Effort without leverage shows up in the outcomes. Consumers whose problem included a denied claim were half as likely to get it resolved satisfactorily as those whose problems did not — 29% against 59%.²The activity is real; the machinery that would change the answer goes almost untouched.

A patient who does not appeal does not exit the story. The denial crosses the counter in three forms. The first is the phone call: an EOB most people cannot parse, directed at the office that sent the statement, because “ask the doctor” is — per the polling — a standard consumer response to a denial.² The second is the balance: a denial converts the plan's obligation into patient responsibility on the practice's ledger, and among insured adults with coverage problems, 28% paid more for care than they expected.¹ The third is the empty slot: 17% of those with insurance problems said they were unable to receive recommended care as a direct result, and 15% said their health declined.¹Each version lands on practice operations — reception explains, billing re-works, the schedule loses the follow-up. None of it appears on the payer's books.

The upstream version of the same experience is prior authorization. In KFF's July 2025 tracking poll, 51% of insured adults said their plan had required prior authorization in the past two years; among them, 58% had the service, treatment, or medication delayed or denied — 48% delayed, 43% denied — and 47% called the process difficult to navigate.³ By January 2026, when KFF asked insured adults to name the single biggest burden in getting care, prior authorization ranked first at 34% — ahead of getting needed appointments (19%), understanding the bill (17%), and finding providers who accept their insurance (15%).⁴ Three of those four burdens are questions patients bring to a front desk. The frustration is not partisan: 73% of all adults call delays and denials a major problem, including 57% of Republicans.³

The administrative record completes the picture the polls sketch. Across HealthCare.gov plans in 2024, insurers denied roughly 85 million in-network claims; consumers appealed at least 262,982 of them — under 1% — and insurers upheld 66% of the internal appeals that were filed.⁵ The appeal right sits with the party least equipped to use it: most people with a denied claim do not know the right exists. The records, the codes, and the clinical rationale sit with the practice. The polling settles one question about the patient side of the denial — it is not quiet acceptance but confusion in motion, and the place it moves toward, more often than any hearing office, is the practice that delivered the care.