# EHR market share in California: Epic runs 31% of hospital EHRs > Epic runs 31% of the 263 California hospitals with an inpatient EHR on file. See the largest EHRs beside the US, updated monthly. Source: https://dmand.ai/insights/ehr-market-share/california · Last updated: 2026-10-28 [Data insight](https://dmand.ai/insights) Refreshed monthly Epic is the inpatient EHR at 81 of the 263 California hospitals with an EHR on file in the Dmand AI database, 31%. Oracle Cerner follows with 78 hospitals (30%), then Altera Digital Health with 23 (9%). Counted on October 28, 2026. [Supreet Gupta](https://dmand.ai/authors/supreet-gupta), Co-founder and Chief Product Officer, Dmand AI Updated Oct 28, 2026 Data: Dmand AI database Location **California** Cite [Download CSV](https://dmand.ai/insights/ehr-market-share/california/data.csv) - **California hospitals with an inpatient EHR on file, of 417**: 263 - **run Epic, the most common EHR in California**: 31% - **of US hospitals run Epic, for comparison**: 38% - **run one of the four largest EHRs in California**: 78% ## Which EHR do California hospitals use? California hospitals run 16 different inpatient EHRs. The chart shows the four that run the most of them. _Epic runs more California hospitals than any other EHR Hospitals by inpatient EHR, 263 hospitals, October 2026_ 1. Epic 8130.8% 2. Oracle Cerner 7829.7% 3. Altera Digital Health 238.7% 4. TruBridge 228.4% 5. 12 other EHRs 5922.4% Source: Dmand AI database, October 28, 2026. One EHR per hospital. [Download CSV](https://dmand.ai/insights/ehr-market-share/california/data.csv) See all 16 EHRs at California hospitals See the other 12, the hospitals on each one and the EHR at every California hospital in Dmand AI. 30 days free, no credit card. [Start free trial](https://app.dmand.ai/signup?from=insight&src=insight%3A%2Finsights%2Fehr-market-share%2Fcalifornia&cta=ehr_state_gate) ## How California compares with US hospitals California is number 3 of 54 states, DC and territories by hospitals with an inpatient EHR on file. The table puts the share of each of the four largest EHRs in California beside its share of all 5,507 US hospitals with one. _Hospitals with an inpatient EHR on file in California, by EHR, with the US share_ | EHR | Hospitals | Share in California | Share in the US | | --- | --- | --- | --- | | Epic | 81 | 31% | 38% | | Oracle Cerner | 78 | 30% | 23% | | Altera Digital Health | 23 | 9% | 3% | | TruBridge | 22 | 8% | 7% | | 12 other EHRs | 59 | 22% | – | _Hospitals with an inpatient EHR on file in California, by EHR, with the US share Source: Dmand AI database, October 28, 2026._ ## How we counted hospital EHR market share - **Universe**: California hospitals with a CMS certification number in the Dmand AI database: 417 hospitals. - **What counts**: The inpatient EHR recorded for each hospital. 263 hospitals have one on file; the other 154 are left out of every share on this page. - **One EHR each**: Each hospital counts once, under one EHR. Shares are of hospitals, not of beds or revenue. - **US shares**: The same count for all US hospitals with an inpatient EHR on file, on the same date. - **Date**: Counted on October 28, 2026. Refreshed monthly; the Updated date changes only when a count changes. **What this page does not show** Counts by EHR and place only. This page never names the EHR at a single hospital; that is in the Dmand AI app, on each hospital's profile. State pages name the four largest EHRs in the state and count the rest together. Ambulatory EHRs at clinics and physician practices are not counted. ## Cite this data Suggested citation Dmand AI. "EHR market share in California." Dmand AI Insights, updated October 28, 2026. https://dmand.ai/insights/ehr-market-share/california [Download CSV](https://dmand.ai/insights/ehr-market-share/california/data.csv) ## Sources 1. [Hospital technology and inpatient EHR records](https://dmand.ai/insights/ehr-market-share/data.csv) Dmand AI database ![Supreet Gupta](https://storage.googleapis.com/beta-launcheazy-media/dmand-asset/marketing/blog/image/702d368a-ae05-4541-b43f-7450fa2d108b-supreet-gupta-co-founder-cpo-dmand-ai.png) Written by Supreet Gupta Co-founder and Chief Product Officer, Dmand AI Supreet is the co-founder and Chief Product Officer of Dmand AI. He leads the product and the healthcare data behind it, and writes Selling Into Healthcare, a newsletter on how US health systems buy. - [LinkedIn](https://linkedin.com/in/supreetgupta) - [X](https://x.com/sprtgpta) - [All work by Supreet](https://dmand.ai/authors/supreet-gupta) Build this list in Dmand AI Filter hospitals by EHR, state and bed size, then see the IT leaders at each one. [Start free trial](https://app.dmand.ai/signup?from=insight&src=insight%3A%2Finsights%2Fehr-market-share%2Fcalifornia&cta=rail_cta) 30 days free · Self-serve · No credit card FAQ ## Hospital EHR questions sales teams ask Short answers from the same counts. **What is the most used EHR in California hospitals?** Epic. It is the inpatient EHR at 81 of the 263 California hospitals with an EHR on file in the Dmand AI database, 31%, as of October 28, 2026. **Which other EHRs do California hospitals use?** After Epic, the largest are Oracle Cerner with 78 hospitals (30%), Altera Digital Health with 23 (9%) and TruBridge with 22 (8%). In all, 16 EHRs are recorded at California hospitals. The EHR at each hospital is in the Dmand AI app. **How does California compare with the US?** Epic runs 31% of California hospitals with an EHR on file and 38% of all US hospitals with one. California is number 3 of 54 states, DC and territories by hospitals with an EHR on file. **How often is this data updated?** Monthly. The counts come from the Dmand AI database, and the Updated date changes only when a count changes. ## Related data [All insights](https://dmand.ai/insights) - Insight ### [EHR market share in US hospitals](https://dmand.ai/insights/ehr-market-share) The national counts, by EHR, hospital size and state. - Insight State page ### [EHR market share in Texas hospitals](https://dmand.ai/insights/ehr-market-share/texas) The same counts for Texas hospitals, where Oracle Cerner leads. - Ranked list ### [Largest hospitals in California](https://dmand.ai/hospitals/ca/largest-hospitals-in-california-by-staffed-beds/) Hospitals ranked by staffed beds, with the people who run them. Hospital technology data Find the IT buying committee at every Epic hospital in your territory Filter hospitals by inpatient EHR, state and bed size, then see the CIO and IT leaders at each site with direct dials. [Start free trial](https://app.dmand.ai/signup?from=insight&src=insight%3A%2Finsights%2Fehr-market-share%2Fcalifornia&cta=closing_cta) [Book a demo](https://dmand.ai/book-a-demo) - 30 days free - Self-serve - No credit card