When patients call their doctor’s office after hours, three things can happen. They reach a generic answering service. They are told to go to the emergency room. Or they speak with a licensed nurse who actually helps them figure out what to do next.
The difference between those three outcomes is significant. Not just for patients, but for the practices responsible for their care.
Independent researchers from NYU Wagner Graduate School of Public Service completed a capstone study analyzing thousands of calls handled by Anytime Telecare’s after-hours nurse triage service. Their findings offer the clearest academic evidence to date on what happens when a clinical, nurse-led model handles after-hours patient calls.
The headline number: 92.54% of calls were resolved without an emergency department visit.
What the NYU Study Examined
The NYU Wagner research team analyzed call records from Anytime Telecare’s nurse triage service to assess clinical outcomes and economic impact. The study focused on:
- What percentage of calls resulted in ED referral versus resolution
- When patients were calling and how call volume patterns affect after-hours care
- The economic value of avoided ED utilization
- The population being served and its characteristics
The findings shed light on a part of the patient journey that most practices have limited visibility into: what actually happens after the office closes.
92.54% of Calls Resolved Without an ED Visit
The most significant finding in the study is also the most direct: 9 out of 10 after-hours patient calls were resolved without requiring an emergency department visit.
The ED referral rate was 7.46%, meaning that the clinical protocols used by Anytime Telecare’s nurses appropriately identified and directed the small share of callers who truly needed emergency care, while safely resolving the large majority of calls.
This matters for a few reasons.
For patients, reaching a nurse who can provide real clinical guidance means they are not left guessing whether their child’s fever warrants a 2 AM ER trip. They get an answer from a licensed professional, and in most cases, that answer is a care plan that does not involve the emergency department.
For practices, every non-emergent call that ends with an ED visit represents a patient who bypassed the practice’s care model. When patients go to the ER for conditions that could have been managed with clinical guidance, the practice loses continuity, the patient potentially loses their established relationship, and an avoidable cost is generated for the healthcare system.
For health systems, reducing unnecessary ED utilization is one of the most direct ways to lower overall care costs and reduce pressure on emergency departments that are already operating at or beyond capacity.
More Than Half of Calls Come In After 6 PM
The study found that 52.96% of patient calls arrived after 6 PM. This means that the majority of after-hours call volume happens in the evening window, not during traditional extended hours.
This finding has real implications for practices evaluating their after-hours coverage strategy.
If your practice is using an answering service that takes messages and calls back during business hours, more than half of your after-hours calls are being handled during the time when patients most need a real clinical response. They are calling because something is happening right now, and they need guidance tonight, not tomorrow morning.
After-hours nurse triage designed to handle this evening volume provides clinical decision support at the exact moment patients need it most, and at the exact moment when the risk of unnecessary ED utilization is highest.
$27 Million to $87 Million in Avoided ED Spending
The NYU team calculated the economic impact of Anytime Telecare’s ED avoidance rate, estimating $27 million to $87 million in gross avoided ED spending annually.
This range accounts for variability in ED visit costs, which fluctuate based on acuity, geographic market, payer mix, and facility type. Even at the lower bound of the estimate, the figure represents a substantial reduction in unnecessary healthcare spending.
For individual practices, the math is more personal. When a patient who could have been managed with clinical guidance instead spends the night in an emergency department, the cost typically ranges from hundreds to thousands of dollars. Multiply that across a practice’s after-hours call volume, and the economic case for nurse triage becomes clear quickly.
98.4% of the Call Population Was Pediatric
The study population was 98.4% pediatric patients. This makes Anytime Telecare’s call data particularly relevant for pediatric and family medicine practices, where after-hours call volume is typically higher than in adult-focused specialties.
Parents of young children call after hours frequently. Fevers, rashes, ear pain, coughs, and injury concerns do not follow a 9-to-5 schedule. And parents, understandably, tend toward caution. Without access to a clinical voice, the default is often the emergency room.
The NYU findings confirm that clinical nurse triage can safely redirect the overwhelming majority of those calls, providing parents with evidence-based guidance while reserving ED referrals for cases that genuinely require emergency intervention.
What “Nurse-Led” Actually Means
There is a meaningful difference between nurse triage and the alternatives.
Answering services are staffed by administrative personnel who take messages and route calls. They are not clinicians. They cannot assess symptoms, apply clinical protocols, or make triage decisions. Their role is to pass information, not to provide care.
AI-only tools can follow scripts and surface information, but they lack the clinical judgment that comes from a licensed nurse with real patient care experience. They may be useful for administrative intake, but they are not a substitute for clinical decision-making.
Anytime Telecare’s nurses are licensed registered nurses using established triage protocols. They gather symptom information, apply clinical criteria, and make a clinical recommendation: manage at home, schedule an appointment, seek urgent care, or go to the emergency room. That clinical layer is what produces a 92.54% resolution rate.
When practices choose nurse-led triage, they are extending their clinical standard of care into the after-hours window. Their patients are receiving guidance from a clinician, not a script.
What This Means for Your Practice
The NYU study answers a question that practices have often had to answer with anecdote: what actually happens when a licensed nurse handles after-hours patient calls?
Now there is data.
More than 9 in 10 calls are resolved without an ED visit. The majority of call volume happens in the evening hours when patients most need a clinical voice. The estimated economic impact of that resolution rate reaches into the tens of millions of dollars annually.
If your practice is relying on an answering service, dealing with call-back burden on your providers, or losing patients to the emergency room after hours, the evidence for nurse triage is clear.
Frequently Asked Questions
Does after-hours nurse triage actually reduce ED visits?
Yes. Independent research from NYU Wagner found that 92.54% of after-hours patient calls handled by Anytime Telecare’s nurse triage service were resolved without an emergency department visit. The ED referral rate was 7.46%, reflecting cases where clinical assessment indicated emergency care was appropriate.
What is after-hours nurse triage?
After-hours nurse triage is a service in which licensed registered nurses handle patient calls outside of office hours. Nurses gather symptom information, apply clinical triage protocols, and guide patients to the appropriate level of care, whether that is home management, a next-day appointment, urgent care, or the emergency room.
How much can nurse triage save in emergency department costs?
The NYU Wagner study estimated $27 million to $87 million in gross avoided ED spending annually attributable to Anytime Telecare’s nurse triage intervention. Individual practice savings vary based on call volume, patient population, and local ED costs.
What is the difference between nurse triage and an answering service?
An answering service takes messages and routes calls. It does not provide clinical assessment or triage decisions. Nurse triage is staffed by licensed registered nurses who assess symptoms and provide clinical guidance. That clinical layer is what enables high rates of safe ED avoidance.
When do most after-hours patient calls come in?
The NYU study found that 52.96% of after-hours calls were received after 6 PM, confirming that the majority of call volume falls in the evening window rather than during traditional extended hours.
See How It Works for Your Practice
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