The Visit Nobody Bills For: What Community Health Workers Change
Community health workers address aspects of a patient's life the clinic never sees. A new review suggests health centers are judging that work by the wrong numbers.
It is a Tuesday afternoon, and the kitchen table has been cleared for the visit. The community health worker sets down a folder and a bottle of water and asks how the week went.
The patient has asthma. Her chart at the health center lists three urgent care visits since summer and a note that her controller inhaler refills are irregular. The chart is accurate, but it omits almost everything that matters.
From the kitchen table, the rest is visible. The wall behind the refrigerator is dark and damp, and the landlord has not responded to two messages about it. The inhaler on the counter is the last one from the spring. The pharmacy that fills her prescription is two bus transfers away, and her shift ends after it closes. She has been stretching the inhaler because getting the next one costs half a day she doesn't have.
Nobody is hiding any of it. It all happens in a room the clinic never sees.
The patient in this piece is a composite, drawn from the kinds of visits community health workers describe. The research below is not.
What the visit changes
By the end of the hour, the health worker has done three things. She has photographed the wall and helped the patient file a complaint with the city's housing inspection office. She has called the health center's pharmacy to move the prescription to mail delivery. And she has written down a phone number the patient can text when the next refill runs low, so the gap doesn't open again.
Three weeks later, the health worker texts to ask whether the mail-order refill arrived. It did, a day early. The housing inspector has scheduled a visit. The patient mentions, almost in passing, that she slept through the night twice that week, which she hadn't done since August. That sentence will not appear anywhere in the health center's records either.
None of it will appear as a billable service. In the chart, the visit may appear as a short note if it appears at all. What it changes is whether the next urgent care visit happens.
The chart records the visit the clinic can bill. The health worker's visit decides whether the next one is needed.
What the review found about community health workers
On October 29, Preventing Chronic Disease, a journal of the Centers for Disease Control and Prevention, published a systematic review of community health worker programs that target the social conditions surrounding chronic disease: housing, food, transportation and access to care. The authors, Wilder and colleagues, screened more than 1,000 studies and identified 7 randomized trials, all conducted in the United States, that met their criteria. Enrollment ranged from 10 to 366 people.
The pattern in the results is worth reading slowly.
What moved were the outcomes closest to daily life:
Symptom-free days increased significantly in the asthma trial.
Physical quality of life improved in another trial.
Stable housing rose by 52.4 percentage points in one health worker group, while falling by 7.2 percentage points among controls. The authors note that no statistical comparison between the groups was reported.
Access to care: in one small study, every participant in the health worker group reached physical health services, compared with none in the control group.
What mostly held still were the lab values measured in these trials:
HbA1c: no significant improvement in the diabetes trials.
Hepatitis C and HIV: no significant differences between groups.
What the review cannot tell us
The authors are direct about the limits. Seven trials is a small base; most were small, and most followed patients for three to twelve months. They rated the overall quality of the evidence low to moderate. Social conditions were measured inconsistently, and only three of the seven studies measured them explicitly.
So this is not evidence that community health workers fail to improve clinical outcomes. Short trials may capture the changes that come first: a safer apartment, a filled prescription, a kept appointment. Lab values may follow later, or they may depend on things a single program can't reach. What the review does show is where the measurable effect appears in the time these trials ran, and it is not where most programs are asked to look.
The work changes the conditions around a disease before it changes the numbers inside it.
What the institution doesn't see
Go back to the kitchen table. If a lab panel judged the program, that visit might not register at all. Her apartment might be repaired. Her inhaler might never run out again. Her urgent care visits might stop. None of it would show up in the measure the program was graded on.
When a health center reports on its community health worker program, the numbers that tend to travel are clinical ones, because those are the numbers the rest of the health center already tracks. A program judged solely by those numbers can appear weak at exactly the moment it is working, and a program that looks weak is the first to be cut when budgets tighten.
There is a second cost. The health worker is often the person who sees the patient's life most fully and whose work is least visible to the people who make decisions about it. Board members, funders and even clinicians down the hall may never hear what happened at the kitchen table, because nobody built a way for that story to reach them.
What a health center can choose to build
The accountability here lies with the organization, not the health worker, and it comes down to three choices.
Measure what the work moves. Track housing secured, prescriptions filled on time, appointments kept, urgent care visits avoided and symptom-free days, alongside the clinical measures. Set the time horizon to match: some of these change in weeks, others take a year.
Report it in the same room as the clinical data. A board report that shows HbA1c trends should also show how many patients moved into stable housing. Both are outcomes of the same care.
Let the story travel, with permission. One documented visit, told with the patient's consent and in their own words, explains the program better than any dashboard. It belongs in funder reports, in staff meetings and in the way the health center describes itself to the community.
What a health center should stop doing is judging its health workers solely by measures they were never positioned to move first on.
A program measured only by lab values will look weakest at the moment it is doing its most important work.
References
Wilder M, Degtyar A, McKay J, Mavuri S, Bolton M, Richardson LD, et al. (2026, October 29). Community Health Worker Interventions Addressing Social Determinants of Health in Chronic Disease: A Systematic Review. Preventing Chronic Disease, 23, 260132. https://www.cdc.gov/pcd/issues/2026/26_0132.htm
Note: Systematic review of 7 U.S. randomized controlled trials (3 pilot, 4 full-scale); enrollment 10 to 366; overall quality rated low to moderate by the authors; no meta-analysis due to heterogeneity.
Some ideas are worth discussing in the context of your organization.
