Digital Health · Retrospective
The 2022 Social Determinants of Health analysis observed that "the 80–90% of health outcomes driven by non-medical factors represents both the greatest challenge and the greatest opportunity for healthcare innovation in the decade ahead." In the four years since, that observation has moved from analytical insight to healthcare policy consensus — and a burgeoning investment category.
The post-COVID period has seen SDoH move from an academic framework to a federal reimbursement priority, a Medicaid mandate, and an active commercial market with hundreds of millions of venture capital investment. What changed, and where did the investment opportunity materialize? The story is more nuanced than a simple vindication of the 2022 thesis — some predicted developments accelerated dramatically, others stalled in ways that reveal the structural challenges of addressing health's social roots within a fee-for-service system.
The 2022 article highlighted ICD-10 Z55–Z65 "social determinants" codes as an important documentation tool. In the years since, these codes have become an active policy instrument rather than just a documentation framework. CMS began including SDoH Z-code reporting requirements in its Quality Payment Program (QPP) in 2023, creating financial incentives for health systems to routinely screen and document social risk factors. The Centers for Medicare & Medicaid Services now publicly reports SDoH screening rates as a quality metric, and the Joint Commission has added social needs screening to its hospital accreditation standards.
The practical impact: health systems across the country have deployed systematic SDoH screening at the point of care, generating large-scale social risk data for the first time in the history of U.S. medicine. Epic's Social Determinants of Health assessment tool, embedded in its EHR, is now used by hundreds of health systems for structured SDoH screening during patient encounters. This data infrastructure is the foundation on which the commercial SDoH market is being built.
In 2022, the SDoH technology space was fragmented — dozens of startups offering navigation platforms, community resource databases, and referral management tools with limited EHR integration and uncertain reimbursement. By 2026, the market has consolidated around a smaller number of platforms with health system enterprise contracts, EHR integration, and in some cases CMS reimbursement support.
Findhelp (formerly Aunt Bertha), the largest social care network with over 500,000 programs in its database and EHR integrations with Epic and Cerner, has become the de facto infrastructure layer for closed-loop referrals to community resources — the process by which a primary care physician can refer a food-insecure patient to a food bank and receive confirmation that the referral was completed. Unite Us has built a competing platform focused on government contracts and Medicaid managed care organizations. Social Current has focused on human services organization network coordination.
"Emerging technologies like telehealth and remote patient monitoring play an important role in addressing these social determinants." — This prediction proved accurate, but the more impactful technologies turned out to be SDoH-specific navigation platforms and AI-powered screening tools rather than general telehealth expansion.
One development the 2022 analysis didn't anticipate was the emergence of AI-powered SDoH risk prediction — using EHR data, claims data, and demographic information to identify patients with high social risk before they present with a crisis. Companies like Healthify (now part of WellSky), Inovalon, and Lyra Health use ML models trained on historical patient data to flag patients with likely housing instability, food insecurity, or transportation barriers — allowing proactive outreach rather than crisis intervention.
The 2022 piece discussed "programs that address social determinants of health" as essential to better outcomes. The most direct federal manifestation of this principle — CMS's Accountable Health Communities (AHC) model, launched in 2017 — completed its evaluation in 2023. The results were instructive: AHC reduced total Medicare and Medicaid spending by approximately $900 per high-risk beneficiary annually, primarily through reduced emergency department utilization. This was meaningful evidence — but the model reached only ~400,000 beneficiaries across 32 bridge organizations, a fraction of the Medicare/Medicaid population with significant social needs.
CMS has responded by embedding SDoH interventions into existing value-based care models rather than running them as standalone demonstrations. The ACO REACH model (replacing the old Direct Contracting model) explicitly includes health-related social needs (HRSN) benefits as an allowable expenditure. Medicaid, where SDoH interventions have the most evidence and the highest-risk populations, has seen the most dramatic expansion: CMS's Section 1115 waiver framework now permits states to cover certain SDoH services — medically tailored meals, housing navigation, and transportation — as Medicaid benefits for high-risk beneficiaries.
The most significant policy development for SDoH since 2022 has been CMS's approval of Medicaid 1115 waivers allowing states to fund SDoH interventions as covered Medicaid services. North Carolina's "Healthy Opportunities Pilots" — providing food, housing, transportation, and interpersonal safety services to Medicaid members — have shown 17% reductions in total Medicaid spending for enrolled populations. California, Oregon, Washington, and Massachusetts have received similar waivers. By 2026, over 20 states have active or approved 1115 waiver authority to cover SDoH services.
This is the reimbursement foundation the SDoH commercial market needed. When Medicaid can pay for housing navigation and medically tailored meals, companies like Mom's Meals (medically tailored meal delivery, acquired by PurFoods), Instacart Health, and community health worker platforms can build scalable businesses on state-covered services rather than relying on grant funding or health system philanthropy.
The SDoH market has transitioned from a philanthropically funded niche to a commercially viable sector with government payment support. The investment thesis is now structural: Medicaid 1115 waivers create reimbursable services, ACO REACH models create incentives, and health system EHR integrations create distribution. The durable investments are in the infrastructure layer — closed-loop referral networks (Findhelp, Unite Us), medically tailored meal delivery platforms serving Medicaid waivers, community health worker management software, and AI social risk stratification tools that plug into existing EHR workflows. Health systems investing in SDoH infrastructure are not doing so out of altruism — they are responding to a reimbursement environment that rewards social risk intervention with measurable cost savings.