911 nurse triage starts after someone dials 911. Resident telehealth is a separate number people use first. They cut different parts of low-acuity demand and are not substitutes.
What is 911 nurse triage?
Dispatch classifies the call; for selected low-acuity complaints, the caller goes to a nurse instead of, or before, an ambulance. The nurse may close the call, send a responder anyway, or steer the person to a clinic or emergency department without lights and sirens.
CMS tested a related idea, the Emergency Triage, Treat, and Transport (ET3) Model, paying ambulance suppliers for treatment in place or transport to an alternative destination. It ran from 2021 to December 31, 2023; see CMS ET3 Model. ET3 was a Medicare payment experiment, not a city resident program.
National EMS guidance lives at EMS.gov (NHTSA Office of EMS). Local medical directors own protocols; a city cannot copy another city’s triage tree without one.
What is resident telehealth?
A city-funded clinician line that does not start at 911. Households get a number; a licensed clinician handles primary-care problems (fever, rash, UTI, refill, “do I need the ER?”) and tells true emergencies to call 911.
TAP Health runs this with 780+ public-sector partners. The win is a 911 call that never happens.
How do the two models compare?
| 911 nurse triage | Resident telehealth | |
|---|---|---|
| Entry point | Caller already dialed 911 | Caller uses a city number first |
| Who staffs it? | Nurses under the EMS medical director | Vendor clinicians under a city contract |
| Who pays? | EMS agency, 911 fund, or a payer model like ET3 | City or county (budget, utility bill, grant, or pool) |
| Covers uninsured residents who never call 911? | No | Yes, if residency is the rule |
| Needs dispatch integration? | Yes. CAD, radio, and protocol changes | No. Fire still wants a talk track |
| City staff load | High at launch (PSAP, medical director, unions) | Contract, notice, and a fire briefing |
| Best for | Calls that already hit 911 | Keeping those calls from being made |
CDC NHAMCS shows a large share of emergency-department visits are treated and released, some triaged as nonurgent. See CDC NCHS Emergency Department FastStats. Both tools chase that demand: nurse triage at the PSAP, resident telehealth at home.
Can a city run both?
Yes:
- Resident telehealth for “I am sick and I do not know what to do.”
- 911 nurse triage for “I already called 911 and this might not need an ambulance.”
Do not route the city telehealth number into the 911 trunk or ask dispatchers to sell an app mid-call. Give them one sentence: if this is not an emergency, the city has a clinician line, here is the number.
Ferris, Texas, used the resident side: City Manager Brooks Williams reported 20 percent fewer non-emergent EMS runs and more than 50 percent resident adoption. An observed dispatch result, not a nurse-triage study.
What does each cost to stand up?
Nurse triage needs protocol software or a contracted nurse line, medical-director time, PSAP training, and often union notice. ET3’s lesson: payment, not software, is usually the blocker. Someone has to pay the nurse when no transport occurs; after ET3 ended, many agencies went back to transport-or-nothing billing.
Resident telehealth is a vendor contract plus public notice. TAP’s modeled EMS savings is $450 to $900 per avoided non-emergency dispatch (municipal cost-to-serve). It covers calls that never reach 911, not a nurse-triage FTE.
Observed TAP result, separate from EMS math: 93 percent of encounters resolved without another claim. Resident rating 9.9/10.
Which should we buy first?
If your CAD shows a fat low-acuity bucket and your medical director will not staff a nurse line this year, buy resident telehealth first; it needs no PSAP software.
If you already have a nurse line and 911 volume is still rising, add resident telehealth. A nurse line cannot help people who have not called.
If you have neither, do not build nurse triage in-house; you will spend a year in protocol meetings.
Ask for a split estimate
To split your CAD file into upstream (never should have called) and on-path (already in 911), send 12 months of medical-call determinants. TAP will price a resident program without pretending it replaces nurse triage.
Request a local EMS savings estimate
Last reviewed: September 2026.
