# 2026 Health Network Choice: 5,000 Patients — Enroll or Skip

Dr. Nadia Okonkwo · October 11, 2026

> Enroll in the 2026 health network only if it shows a 1.98% cost growth drop, $41.60 PMPM savings, and 72-hour follow-up.

| Takeaway | Detail |
| --- | --- |
| Enroll only if the network proves a ≥1.98% difference-in-differences drop in ambulatory cost growth | Documented threshold from The Impact of Electronic Health Records on Ambulatory Costs (difference-in-differences=-1.98%, p |
| Require ≥$41.60 PMPM savings as the minimum documented cost offset | $41.60 PMPM savings figure sourced from the same EHR impact study |
| Verify the network maintains a documented 72-hour post-discharge follow-up workflow | 72-hour post-discharge follow-up rule stated in the reader rule |
| Confirm no increase in avoidable hospitalizations is tied to the network's care coordination | Avoidable hospitalization condition specified in the thesis |

This guide sets the exact bar for enrolling a 5,000-patient panel in a 2026 health network.

It translates the thesis into four checkable rules backed by documented evidence.

![2026 Health Network Choice](https://static.mm-ais.com/article-images-ai/2026-health-network-choice-5-000-patient-ai-6f825376.jpg)

## How network enrollment actually works

When a 5,000-patient panel weighs network enrollment in 2026, the operational template most networks reference is the CMS Ambulatory Specialty Model (ASM), whose page was updated October 2, 2026. Per CMS, the ASM aims to improve upstream management of chronic disease to reduce avoidable hospitalizations and unnecessary procedures in Original Medicare. Before you sign anything, ask the network to show you its ASM alignment in writing — the chronic conditions it targets, the upstream interventions it deploys, and how it reports avoidable hospitalizations and unnecessary procedures back to you. A network that cannot produce that document is asking you to fund a workflow it has not defined.

Enrollment itself should be treated as an assignment, not a handshake. Ask the network to match each of the 5,000 patients to a named care coordinator, and to define that coordinator's tasks in writing: medication reconciliation, 72-hour post-discharge contact, and loop closure with the primary care team. Run this as a checklist. Ask for the roster — 5,000 patients, 5,000 named coordinators, no gaps. Ask for the reconciliation standard: what gets compared, against which source list, and who signs off. Ask for the 72-hour contact log, because the post-discharge window is where readmissions are won or lost. And ask for the loop-closure record: the dated note showing the primary care team received the discharge summary and acted on it. If any of the three is undocumented, the assignment exists on paper only.

| Enrollment check | What to request | Pass condition |
| --- | --- | --- |
| ASM alignment | Written model description dated to the October 2, 2026 CMS update | Targets, interventions, and reporting defined |
| Coordinator assignment | Patient-to-coordinator roster | All 5,000 patients matched to a named coordinator |
| Medication reconciliation | Reconciliation standard and sign-off | Source list and accountable reviewer identified |
| Post-discharge contact | 72-hour contact log | Contact documented within the window |
| Loop closure | Dated primary care acknowledgment | Discharge summary received and acted on |

The net effect of enrollment is that you hand over the coordination layer for all 5,000 patients — the medication list, the discharge window, the primary care handoff — to a network whose performance you can only judge from its records. That is why the enrollment decision should be gated on documentation, not on the pitch. If the network cannot show you the roster, the reconciliation standard, the 72-hour log, and the loop-closure trail, you are not buying coordination; you are buying the appearance of it. Hold the signature until the paperwork answers every row in the table above.

![How network enrollment actually works — 2026 Health Network Choice](https://static.mm-ais.com/article-images-ai/2026-health-network-choice-5-000-patient-ai-b0458f4a.jpg)

## The evidence: what the numbers show

The single most useful number for a 5,000-patient panel weighing network enrollment in 2026 comes from a peer-reviewed study of electronic health records in ambulatory settings: ambulatory medical costs increased more slowly in one intervention community than in its control, with a difference-in-differences of -1.98% (p<0.001) and per-member-per-month savings of $41.60 (source: PMC study on EHR and ambulatory costs). That is the bar. A network that cannot show you a documented reduction of at least that magnitude, measured the same way, has not cleared the threshold your panel should set. Confirm the study design is difference-in-differences with a stated control, the outcome is total ambulatory cost growth in PMPM dollars, and the reported p-value and confidence interval are supplied.

Read the mechanism behind those figures before you accept them as a template. In the same study, the savings were not produced by cutting outpatient care. They were driven by lower hospitalization rates that more than offset higher outpatient costs stemming from disease-adjusted reimbursements associated with doctor consultations (source: International Journal of Integrated Care on collaborative ambulatory care). This matters for your review: a network that promises savings by squeezing ambulatory utilization is promising the opposite of what the evidence shows. The documented path runs through avoided admissions, with outpatient spending allowed to rise.

Apply three checks to any network's submission. First, confirm the study design is difference-in-differences with a stated control, not a pre-post comparison of a single cohort. Second, confirm the outcome is total ambulatory cost growth, expressed in PMPM dollars, not a utilization proxy such as visits per member. Third, confirm the reported p-value and that the confidence interval excludes zero. A network that supplies only a percentage without a PMPM figure, or a PMPM figure without a control group, has given you a marketing claim rather than patient-level evidence.

## What to do next

| Step | Action | Why it matters |
| --- | --- | --- |
| 1 | Request the network's written, patient-level evidence showing a ≥1.98% difference-in-differences reduction in ambulatory cost growth, as documented in The Impact of Electronic Health Records on Ambulatory Costs. | This confirms the network meets the canonical decision rule threshold of 1.98% before any enrollment consideration. |
| 2 | Verify the network reports at least $41.60 PMPM in documented cost offset savings, sourced from the same EHR impact study. | The $41.60 PMPM savings figure is the minimum required cost offset to justify enrolling the 5,000-patient panel in 2026. |
| 3 | Confirm the network maintains a documented 72-hour post-discharge follow-up workflow, as specified in the reader rule. | The 72-hour post-discharge follow-up rule is a mandatory condition tied to care coordination quality and must be verified before enrollment. |
| 4 | Review the network's data to ensure no increase in avoidable hospitalizations is tied to its care coordination model, as specified in the thesis. | The avoidable hospitalization condition protects the 5,000-patient panel from unintended downstream cost escalation. |
| 5 | If all four criteria are met, proceed with enrollment; if any criterion fails, skip the network and reinvest in internal navigator capacity. | This enforces the canonical decision rule: enroll only if the network proves ≥1.98% DiD reduction, ≥$41.60 PMPM savings, 72-hour follow-up, and no avoidable hospitalization increase. |

## Frequently Asked Questions

**What exact difference-in-differences threshold must the network show before a 5,000-patient panel should enroll?**

Enroll only if the network proves a ≥1.98% difference-in-differences drop in ambulatory cost growth.

**What is the minimum documented cost offset required to justify enrollment?**

Require ≥$41.60 PMPM savings as the minimum documented cost offset.

**What post-discharge follow-up workflow must the network document?**

Verify the network maintains a documented 72-hour post-discharge follow-up workflow.

**What hospitalization-related condition must be confirmed before enrolling?**

Confirm no increase in avoidable hospitalizations is tied to the network's care coordination.

**Which operational template do most networks reference when a 5,000-patient panel weighs 2026 enrollment?**

The CMS Ambulatory Specialty Model (ASM), whose page was updated October 2, 2026.

**What does the CMS ASM aim to improve, according to CMS?**

Per CMS, the ASM aims to improve upstream management of chronic disease to reduce avoidable hospitalizations and unnecessary procedures in Original Medicare.

## Quick answers

| What is the minimum difference-in-differences drop in ambulatory cost growth required to enroll? | Enroll only if the network proves a ≥1.98% difference-in-differences drop in ambulatory cost growth. |
| --- | --- |
| What PMPM savings figure is required as the minimum documented cost offset? | Require ≥$41.60 PMPM savings as the minimum documented cost offset. |
| What post-discharge follow-up workflow must the network maintain? | Verify the network maintains a documented 72-hour post-discharge follow-up workflow. |
| What must be confirmed regarding avoidable hospitalizations tied to the network's care coordination? | Confirm no increase in avoidable hospitalizations is tied to the network's care coordination. |
| What operational template do most networks reference when a 5,000-patient panel weighs network enrollment in 2026? | The CMS Ambulatory Specialty Model (ASM), whose page was updated October 2, 2026. |

### Related reading

- [CPT 99490's $62 Cap: Why Only 1 in 50 Patients Get Billed](https://hcco.app/blog/cpt-99490s-62-cap-why-only-1-in-50-patients-get-billed.php)
- [CMS Prior Authorization APIs by Jan. 1, 2027: Triage Rules for 72-Hour Expedited vs. 7-Day Standard Reviews](https://hcco.app/blog/cms-prior-authorization-apis-by-jan-1-2027-triage-rules-for-72-hour-expedited-vs-7-day-standard-reviews.php)
- [Prior Authorization API Deadline: CMS 2027 Rule Cuts Manual Review Costs by 40%](https://hcco.app/blog/prior-authorization-api-deadline-cms-2027-rule-cuts-manual-review-costs-by-40.php)
- [Blood thinner costs: $231 Eliquis Part D cap not sale price](https://hcco.app/blog/blood-thinner-costs-231-eliquis-part-d-cap-not-sale-price.php)
- [Heart failure readmissions: 0.82 odds ratio—verify any accountable care effect](https://hcco.app/blog/heart-failure-readmissions-082-odds-ratioverify-any-accountable-care-effect.php)
- [Hospital Discharge Follow Up: $68K Navigator vs $420K Penalty](https://hcco.app/blog/hospital-discharge-follow-up-68k-navigator-vs-420k-penalty.php)

### Latest

- [CMS Prior Authorization APIs by Jan. 1, 2027: Triage Rules for 72-Hour...](https://hcco.app/blog/cms-prior-authorization-apis-by-jan-1-2027-triage-rules-for-72-hour-expedited-vs-7-day-standard-reviews.php)
- [Prior Authorization API Deadline: CMS 2027 Rule Cuts Manual Review Costs by 40%](https://hcco.app/blog/prior-authorization-api-deadline-cms-2027-rule-cuts-manual-review-costs-by-40.php)
- [Blood thinner costs: $231 Eliquis Part D cap not sale price](https://hcco.app/blog/blood-thinner-costs-231-eliquis-part-d-cap-not-sale-price.php)

Canonical: https://hcco.app/blog/2026-health-network-choice-5000-patients-enroll-or-skip.php
Markdown: https://hcco.app/blog/2026-health-network-choice-5000-patients-enroll-or-skip.php/index.md