A three-physician family practice pursuing PCMH recognition told us their access was "not a problem." Patients could always get in. When we asked the front desk to check the schedule for the third open slot for a routine follow-up with each physician, the answers were 0 days, 2 days and 11 days. The physician with the 11-day wait had the largest panel, the most loyal patients and a full calendar of follow-ups booked six weeks out. Her patients were not complaining because they had given up on getting in quickly and were going to urgent care instead. The practice was losing visits and did not know it.
That is what access measurement is for. Third next available appointment, same-day capacity, and the handful of related numbers are not paperwork for NCQA. They are the fastest way to find out which clinician's schedule is broken and whether a fix is working. NCQA asks for them because a medical home that patients cannot get into is not a medical home, and the Access and Continuity (AC) criteria in the PCMH standards are the place where the evidence is due.
This article is how we set up the measures in a practice, how to compute each one so the numbers are comparable week to week, what to do when they are bad, and what to keep for annual reporting. For readers new to the vocabulary: PCMH is the Patient-Centered Medical Home recognition program run by NCQA, and "core criteria" are the ones every recognized practice has to meet.
Key takeaways
- Third next available appointment (TNAA) is the number of calendar days between the day you look and the third open slot for a routine visit with a given clinician; measure it per clinician, on the same day each week, and never average across the practice.
- Same-day capacity is two numbers: the share of each day's slots held open for same-day requests, and the share of same-day requests actually accommodated.
- NCQA's core access criteria require you to assess patients' access needs (AC 01), provide same-day appointments for routine and urgent care (AC 02), offer appointments outside regular business hours (AC 03) and give timely clinical advice by phone (AC 04) and electronically (AC 05), each with a documented process and a report.
- Bad access numbers are almost always a supply and demand mismatch you can calculate: panel size times visit rate against available slots.
- Keep the weekly measurement log, dated, because it is both your improvement record and your annual reporting evidence.
How to measure third next available appointment
The measure comes from the Institute for Healthcare Improvement and it is deliberately simple. On a fixed day and time each week, for each clinician, look at the schedule and count the calendar days from today to the third available open slot for a defined appointment type, usually a routine return visit. Use the third slot rather than the first because the first or second opening is often a cancellation that overstates how accessible the clinician is. Count calendar days including weekends, count only slots that are genuinely open (not double-books, not slots blocked for procedures), and record the number even when it is zero.
The rules that keep the number honest matter more than the arithmetic. Pick one appointment type and stick with it; a practice that measures "any appointment" one week and "physical" the next has two different measures. Measure the clinician's own schedule, not the practice's; a patient who wants her own physician and is offered the nurse practitioner tomorrow has not experienced same-day access. Do not exclude days the clinician is off; if the clinician works Tuesdays and Thursdays and today is Wednesday, the patient's experience is the wait to Thursday. And measure at the same time each week, because a Monday morning reading and a Friday afternoon reading of the same schedule differ by days.
What counts as good depends on the specialty. IHI's material treats same-day as the goal for primary care, and most practices we work with set a working target of two days or fewer for a routine visit and same day for urgent needs. A clinician at nine days or more is not slightly behind; her schedule is structurally over-committed and will not fix itself.
Same-day capacity and the other numbers
Same-day capacity is the measure that satisfies AC 02, and it has a supply side and a demand side. On the supply side, count how many slots on each clinician's template are held for same-day booking (not released to advance booking until that morning) and express it as a percentage of the day's slots; practices with good access typically hold 25 to 40 percent, though the right number is whatever your demand data says. On the demand side, log every same-day request for a week, including phone requests handled by triage, and count how many were seen the same day, seen the next day, or sent elsewhere. The second ratio is the one patients feel.
| Measure | How to compute | Cadence | Working target for primary care | NCQA criterion it supports |
|---|---|---|---|---|
| Third next available appointment | Calendar days to the third open routine slot, per clinician | Weekly, same day and time | 2 days or fewer | AC 01, AC 02 |
| Same-day slot share | Same-day slots divided by total slots on the template, per clinician | Reviewed monthly | Set from demand data; often 25 to 40 percent | AC 02 |
| Same-day request fulfillment | Same-day requests seen same day divided by same-day requests | One-week sample each quarter | 90 percent or higher | AC 02 |
| After-hours availability | Appointments offered before 8 a.m., after 5 p.m. or on weekends, per week | Monthly | Defined by your patient survey | AC 03 |
| Clinical advice response time | Time from patient call or portal message to a clinical response | One-week sample each quarter | Your documented standard, for example 2 hours urgent, 1 business day routine | AC 04, AC 05 |
| No-show rate | No-shows divided by scheduled appointments, per clinician | Monthly | Under 10 percent | Supports AC 01 analysis |
| Continuity | Visits with the patient's own clinician divided by all visits for that panel | Quarterly | 70 percent or higher | Competency B continuity criteria |
AC 01 is the one practices forget. It asks whether you have assessed what your patients actually need: evening hours, weekend hours, telephone advice, video visits, a language. The evidence is a patient survey or an analysis of request patterns, and it should drive what you do about AC 02 and AC 03. Holding Saturday hours nobody asked for while the same-day fulfillment rate sits at 60 percent is the pattern we see when AC 01 was skipped.
A worked example: finding the eleven-day wait
Back to the physician with the 11-day TNAA. Her panel was 2,100 active patients (seen in the last 18 months). The practice's visit rate for her panel was 3.4 visits per patient per year, which gives an annual demand of 7,140 visits. She worked 4.5 clinic days a week for 46 weeks, with a template of 22 slots a day: 4.5 × 22 × 46 = 4,554 slots. Demand exceeded supply by roughly 2,600 visits a year, or 57 a week. No scheduling trick closes that gap; it explains why every open slot was filled six weeks out and why her same-day capacity was zero.
- Confirm the panel. Removing patients not seen in 36 months and those who had transferred care took the active panel to 1,850, and demand to about 6,300 visits.
- Reduce demand per patient. Moving stable hypertension and diabetes follow-ups from every three months to every four to six months where clinically appropriate, and shifting routine result discussions to portal messages, brought the visit rate toward 3.0, or about 5,550 visits.
- Add supply. Adding one clinic session a week (about 250 slots a year) and moving pre-visit paperwork off her schedule to the medical assistant took capacity to roughly 4,800 slots.
- Close the rest by redistributing new patients to the physician with the 0-day TNAA for six months while her panel stabilized.
- Only then reserve 30 percent of her slots for same-day booking. Opening same-day slots on an over-committed schedule just moves the backlog into the afternoon.
Her TNAA came down over about four months, and the weekly log showed it: 11, 10, 9, 8, 7, 6, 5, 4, 3, 3, 2, 2. That log, with the dated template changes written next to it, is exactly what NCQA wants to see for AC 02 and what our PCMH transformation work produces for every clinician.
Reporting the measures to NCQA and to the team
For each AC criterion, NCQA generally asks for a documented process and evidence of implementation, which for the appointment criteria means a report or a set of schedule screenshots covering a defined period, typically at least five days of data, dated and identifiable to the practice. The weekly TNAA log satisfies the "report" half; a one-page scheduling policy that states your same-day reservation rule, your after-hours schedule and your clinical advice response standards satisfies the "process" half. Under the standards in effect for 2026 (version 11.1), the documents are uploaded through the NCQA Q-PASS system, and practices in annual reporting should keep the same measures running rather than reconstructing them each spring.
Reporting to the team is the part that changes behavior. We post the TNAA for each clinician on the same chart every week, with no averaging, and review it in the monthly staff meeting alongside the same-day fulfillment sample. Clinicians who see their own number next to their partners' tend to ask why, and that conversation is the beginning of every template change we have watched succeed. Our annual review work uses that same chart as the first page of the access section.
Questions we hear
Our scheduling system reports "next available" for the whole practice. Is that enough?
No, for two reasons. A practice-wide number hides the clinician whose schedule is the problem, and "next available" is usually the first slot, which cancellations distort. Ask the vendor whether the report can be run per clinician for the third slot; if not, a front desk staff member can do the manual count for six clinicians in about ten minutes a week.
Do telehealth visits count toward same-day capacity?
They count if they meet the patient's need. For a same-day medication question or a rash, a video visit that day is same-day access and you can log it as fulfilled. For a request that needs an exam, offering a video visit is a deflection, not access. Your log should record the modality so you can see what share of same-day fulfillment is video, which is also useful AC 01 evidence about what your patients accept.
What if a clinician's TNAA is zero because she has too few patients?
Then the measure has done its job in the other direction. A zero-day wait with a half-empty template is unused capacity, and the right response is to route new patients and overflow to that clinician, which is what our worked example did. Access measures are about matching supply to demand for each clinician, not about driving every number to zero.
What to do this week
- Pick the appointment type, the day and the time, and take the first TNAA reading for every clinician; write the numbers down with the date.
- Log every same-day request for the next five clinic days and how each was resolved.
- For any clinician over five days, calculate panel size, visit rate and annual slots, and find the gap.
- Write the one-page access policy: same-day reservation rule, after-hours schedule and clinical advice response standards.
- Put the weekly TNAA chart on the wall or the shared drive and add it to the monthly staff meeting agenda.
