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Cerner vs Epic: How the Two Big EHR Systems Compare

Cerner now sits inside Oracle: Oracle agreed to buy it in 2021 and sells its health records software as Oracle Health, with AI agents built into the EHR. Epic describes itself as employee-owned, and says more than 325 million patients have a current record in its software. Most clinics don't choose either alone; they use whichever their hospital or health system runs.

I read Epic's About and software pages, Oracle's 2021 press release announcing the Cerner deal, and Oracle Health's EHR and home pages. If you've heard both names in a job advert or a referral letter and wondered what separates them, this is the plain version, with every fact as of October 2026.

Epic and Oracle Health (Cerner) at a glance

EpicOracle Health (Cerner)
OwnershipEmployee-owned and developer-ledPart of Oracle since its 2021 deal to buy Cerner
Founded1979, in a basement with three half-time staffA hospital information systems company before Oracle
Scale it statesMore than 325 million patients with a current recordNot given as a patient count on the pages I read
Core productEpic's EHR and connected appsOracle Health Foundation EHR and Oracle Health EHR
Use of AIWoven throughout its software, Epic saysOracle Health AI Agents, voice-enabled, in the EHR
Growth approachBuilds its own software, with no acquisitionsPart of Oracle's wider cloud and AI business
Who uses itHospitals, clinics, dental, mental health, payers, retail clinics and moreProviders, payers and public health organisations

Epic in its own words

Epic's About page is short and specific. It started in 1979 with three half-time employees, calls itself a software factory that makes no acquisitions, puts 35% of operating expenses into research and development, and is employee-owned. It also says it's been ranked the top overall software suite by KLAS for 16 years running, which is Epic's own claim about a third-party ranking.

Its software reaches well beyond hospitals: Epic lists academic medical centres, community hospitals, dental clinics, hospices, independent practices, mental health services, rehab centres, retail clinics and urgent care, plus patients' homes and phones.

Oracle Health, the former Cerner

In Oracle's press release of December 20, 2021, Oracle and Cerner jointly announced the acquisition and described Cerner as a leading provider of digital information systems used in hospitals and health systems. Today Oracle sells Oracle Health Foundation EHR, which gives care teams an enterprise-wide view of clinical information inside their workflow, near real-time decision support and referral tools.

Oracle's pitch leans heavily on AI. Its Oracle Health AI Agents are voice-enabled and built into the EHR to help with charting and documentation, and Oracle says AI is embedded in every layer of its health technology, from data platforms to cloud applications.

It's also worth knowing who Oracle is selling to. Its health pages talk about providers, payers and public health organisations, and about cloud infrastructure built for healthcare. That's a different starting point from Epic's pages, which talk about the patient and the care team first. Ask both to demo an ordinary clinic day rather than their platform slides.

Prescribing tools often sit inside or beside these systems, and my list of electronic prescribing software compares nine of them.

What it means for a clinic or practice

  1. If you refer into a hospital, ask which system it runs; sharing records is easiest on the same platform.
  2. If you're hiring, list the system by name in the advert; many staff are trained on one.
  3. Ask each vendor how it exchanges data with the other, since you'll meet both.
  4. Check what the vendor offers for your size; both pages focus on large organisations.
  5. Talk to a practice like yours that has gone live in the last two years before you sign.

For the marketing side of running a clinic, see this guide to digital marketing for small clinics and why project management matters in healthcare businesses.

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My advice on Cerner or Epic

I'd let your network decide. If the hospitals you work with run Epic, staying on the same platform makes referrals, records and recruitment easier. If your organisation already runs on Oracle and wants AI built into the record, Oracle Health is the natural fit. Either way, judge them on a live demo with your own clinicians and a day of real workflows, not on brochure claims, because the system your staff can use quickly is the one patients feel.

Do you make healthcare software or a clinic tool? Tool makers can ask to be considered for a featured place in comparisons like this one.

Frequently asked questions

Is Cerner now Oracle Health?

Oracle announced in 2021 that it would acquire Cerner, and today it sells its EHR under the Oracle Health name.

How many patients have a record in Epic?

Epic says more than 325 million patients have a current electronic record in Epic.

When was Epic founded?

In 1979, in a basement, with three half-time employees, according to Epic's About page.

Does Oracle Health use AI?

Yes. Oracle Health AI Agents are voice-enabled and integrated with its EHR for charting and documentation.

Who owns Epic?

Epic describes itself as employee-owned and developer-led, and says it makes no acquisitions.

Published and maintained by the Lilach Bullock team, covering marketing, AI and business growth.
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