After-Hours Access and ED Diversion

An MSSP ACO managing 15,000 attributed lives has, in most configurations, a business-hours care team and a fragmented after-hours arrangement. A nurse triage line that operates until 8 p.m. An answering service that takes messages and relays callback requests. An on-call physician rotation that was designed for clinical emergencies and now handles everything from chest pain to medication refill questions because there is no other option after 9 p.m.

Patients who cannot reach clinical guidance after hours make rational decisions. They go to urgent care if one is available and open. They go to the ED if it is not, or if their concern is significant enough that waiting until morning does not feel like an option. A patient with type 2 diabetes who woke up at midnight with a headache and blurred vision — uncertain whether this is concerning, unsure whether it can wait — makes that decision without any guidance from their care team. Some of those decisions result in non-urgent ED visits. The urgency determination is the service that was unavailable.

For an ACO carrying financial responsibility for TCOC, every non-urgent ED visit in the attributed population is a direct cost. CMS tracks ED utilization rates as a quality metric. Payer contracts for risk-bearing MSOs often include ED utilization performance targets. The correlation between after-hours access gap and avoidable ED utilization is well-documented.

ZynAfterHours handles every after-hours call from the attributed population — assessing symptoms using consistent clinical triage logic, resolving routine questions, scheduling next-day appointments for concerns that can wait, and routing genuinely urgent cases to the on-call clinician. It operates in 15-plus languages, which means the same quality of access extends to every patient regardless of primary language. The on-call physician receives only the cases that require physician judgment.

For patients identified as high-risk or recently discharged, ZynAfterHours flags the interaction for care team review the next morning — so the clinical team has context on any after-hours contact before the patient's next scheduled encounter. ZynSchedule confirms next-day appointments in the same call. The patient ends the interaction with a plan rather than a message in a queue.

For ACO and MSO leadership teams tracking ED utilization against performance year targets, the change in after-hours contact patterns is visible in claims within quarters. Patients who previously defaulted to the ED because no clinical alternative was available are reaching one. The on-call burden on the physician team is reduced to the clinical escalations that genuinely warranted it.