Epic cloud-based Electronic Health Records (EHR) solution is used by a wide range of healthcare institutions from small-size independent practices to multi-specialty hospital groups. 45% of the US population have their EHRs stored within the Epic system and top-20 hospitals use Epic for electronic health record management. If you develop software for a medical institution that uses Epic, you need to integrate it with this EHR/EMR system in order to easily access and process the needed patient information.
In this article, we will discuss what Epic EHR integration is, cases when it is applicable and when it is not, how your app and the development process can benefit from it, and lastly, how to integrate Epic through API.
What Is Interoperability in Healthcare?
On March 9, 2020, the Office of the National Coordinator for Health Information (ONC) released the Interoperability and Patient Access final rule. Its main purpose is to create a legal basis for ensuring smooth and safe health information exchange and elimination of information blocking. The legislation promotes the use of secure Application Programming Interfaces (APIs) that make healthcare data available to all parties of the healthcare system including patients. This means new opportunities for healthcare software providers and developers to innovate the industry and benefit from using EHR/EMR APIs.
It’s important to understand the difference between Electronic Medical Records (EMR) and Electronic Health Records (EHR) as they differ in the extent of interoperability and the breadth of information. EMRs contain medical information from a particular medical organization or clinician while EHRs contain the patient data collected over a vast period of time from multiple healthcare providers and clinicians. EMRs and EHRs include the following details:

Integrating your app with EHR and different EMR systems has various benefits such as providing doctors with all the needed data about the person’s health history, eliminating the need of performing repeated examinations, and saving time by auto-filling personal and insurance information.
There are a couple of ways to integrate your software with popular EHRs such as Epic. You can use native HL7 and FHIR APIs, utilize the power of native EHR integration modules, or employ middleware. Today we will focus on the first method as interoperability is easier to achieve using the public or open API of EHR solution providers. Without further ado, let’s discuss how to enable the data exchange between EPIC EHR and your software with the EPIC API.
What Is the Epic USCDI API and How Does It Work?
In order to better answer the question, let’s first define each concept.
USCDI stands for the United States Core Data for Interoperability. This data standard regulates data classes and constituent data elements that will make data easily transferable between different healthcare institutions, without information being altered or not readable anymore.
API is an Application Programming Interface. In this case, it works as an intermediary between an app and an EHR/EMR system: an app sends a request, API processes it and sends it to an EHR/EMR system, then the system gives the information needed to API and it delivers it back to the app.
Consequently, Epic USCDI API is a tool that pulls information from the Epic EHR/EMR system in the USCDI format and sends it to the software.
You may also find another name for this API which is Epic USCDI on FHIR. FHIR is Fast Healthcare Interoperability Resources and it is a standard of data that helps to facilitate an adequate exchange of data through the web. It makes the application integration way easier. Additionally, Apple announced their support towards FHIR which is a perfect solution for integrating Epic with an iOS application.

Who Needs Epic EHR/EMR Integration?
EHR integration using the Epic USCDI API will let healthcare providers view electronic medical records with updated information in real-time. They do not need to install the Epic app; additionally, the information can be pulled from the healthcare application. With Epic EMR integration, users can also do various things to the obtained data: analyze, visualize, or use AI algorithms for more accurate care. However, one can not change data or add anything.
The ease of Epic electronic health records integration and cost-effectiveness have their pitfalls. It’s worth remembering that Epic API enables you to view patient data only without changing it. So, if your software needs more than merely extracting the data, consider other APIs.
Need help integrating your healthcare app with Epic EHR/EMR?
We can helpImportance of Epic EHR Integration
Enhancing Interoperability Across Healthcare Systems
Epic EHR integration helps healthcare organizations work together more smoothly. It pulls everything into one place by linking Epic with other systems — like lab services, imaging tools, and population health platforms. This means fewer data silos and easier, real-time information sharing so everyone involved in patient care stays on the same page. It’s about building a more connected experience that benefits providers and patients.
Supporting Continuity of Care and Informed Decision-Making
With Epic integrations, patient data is easily accessible across different parts of the healthcare system, which helps with ongoing care and proactive treatment planning. Cutting out manual data entry and avoiding repetitive tasks lowers the chances of mistakes, boosts patient safety, and ensures providers have reliable data. This way, healthcare teams can make smarter decisions, improving patient outcomes and higher-quality care.
Streamlining Operational Efficiencies
Epic systems integration goes beyond just clinical care and streamlines daily operations. Automating tasks like billing and coding helps cut costs and speed up revenue processes. Plus, Epic’s powerful data analytics tools allow healthcare organizations to dig into large datasets. This supports strategic efforts like predicting patient outcomes, managing population health, and optimizing resources.
Ensuring Compliance and Data Security
Epic EHR integration is essential to compliance with regulations and securing patient data. Ensuring all patient information is consistently recorded, stored, and accessible helps healthcare organizations meet HIPAA and other privacy standards. This reliability protects patient data and reinforces the organization’s integrity by following important protection laws. It’s all about building trust and keeping healthcare environments secure.
Driving Data-Driven Growth and Innovation
Investing in Epic EMR integration helps transform patient care and improves how healthcare teams work together. With the most suitable Epic EMR integration API, organizations can create a more connected and responsive healthcare system. It also supports scalable, data-driven growth that can quickly adapt to the changing needs of the healthcare landscape.
Examples of Cases in Which Epic EHR/EMR Integration Is Needed
Epic EHR/EMR integration would be a great choice for telehealth apps, as such software needs to quickly extract the patient-related data from the EHR for a doctor to review it and make a well-informed treatment decision.
Another case when Epic EHR/EMR integration is a good idea is patient management software. The software needs to pull clinical data such as medication status, laboratory results, and changes in patient condition to track, monitor, and analyze the effectiveness of treatment plans.
Here are some cases in which Epic EHR integration is needed and when you need to consider other options:

Benefits of Epic EMR/EHR Integration
Epic USCDI API has a variety of benefits that can help your healthcare software gain a competitive edge and attract more users, from both patients and medical personnel. They include the following:
Quick Access for the Medical Personnel
Over 200 million EHRs are exchanged each month by healthcare providers who use Epic which has a positive impact on the quality of care provided. Doctors are not always around the computers: sometimes they go to rural areas or need information while they are near the patient. The Epic EHR implementation will allow them to quickly access patient records from anywhere and choose the appropriate treatment based on this information.
Cost-Efficiency
Epic USCDI API is a more cost-effective solution that enables healthcare providers to extract data from Epic EHR free of charge. Moreover, Epic API is easier in terms of integration than HL7 or CCDs. With the latter, a developer has to write a lot on their own which influences the costs, effort, and time spent on the healthcare software development.
Interested to learn more about price details? Check our our article on how much EMR integration solution costs.
Scalability
With Epic electronic health record integration, you will be able to easily change the size of your database. It is especially beneficial for such healthcare organizations as intensive care units in which patients are being constantly monitored which results in massive amounts of records.
How to Integrate with Epic EMR/EHR?
The integration process of Epic USCDI API can be divided into 5 main steps:
Check Epic Support
Epic does not work with some versions so check whether the sites you are going to extract data from are supported by this EHR/EMR system. You can ask your account or integration manager to check this.
Create an Account on Uscdi.epic.com
In order to get access to the API key, you have to prove your identity through registration on the uscdi.epic.com site. It is important for data protection.
Review the Data Available
You want to ensure that your healthcare software has access to all the needed data such as allergies, care plan, conditions, diagnosis reports, documentation, history, etc. So check whether the API will have the needed endpoints.
Get the Key and Test Endpoints
You will see the API key on the website that is better to be tested to check whether all the endpoints are working as they should. You can use REST clients to do so.
Integrate It with an App
Include calls to the API in the app code using the endpoints. After everything is implemented and checked, you can enjoy the perks of integrating with Epic EHR/EMR.
To ensure the smooth integration of your healthcare software with Epic EHR it’s better to work with a reliable software development vendor that has expertise in overcoming data interoperability challenges. Langate has a team of over 90 qualified professionals focusing on healthcare solutions. While helping companies integrate with such EHR systems as Epic, we profoundly analyze the business needs to develop a technology architecture that enables consistent and secure data exchange.
Challenges in Epic Systems Integration
Integrating Epic systems with other healthcare technologies can be tricky and requires careful planning and expert know-how. Here are some key challenges to consider:
Ensuring Compatibility Across Systems
One big challenge is ensuring Epic works smoothly with other healthcare platforms, each of which might use different data standards and communication methods. Epic often relies on standards like HL7 and FHIR for data sharing, but legacy systems might need to support these. To make everything fit together, you might need to do a lot of data mapping and possibly even use custom middleware to bridge the gaps.
Navigating Data Security and Compliance
Since Epic handles sensitive patient data, strict compliance with regulations like HIPAA and GDPR is essential. This requires advanced security measures — such as encryption, role-based access controls, and regular audits — to protect data throughout the integration. Also, monitoring for vulnerabilities is crucial, as new risks can arise.
Managing Resource-Intensive Integration Efforts
Integrating Epic with other systems can be both costly and time-consuming. It often requires custom API setups, building middleware from scratch, and thorough testing to ensure everything works well together. This process needs skilled teams — like project managers, software developers, and Epic-certified experts — to handle it smoothly. With so much at stake, carefully planning resources and timelines is essential to avoiding disruptions.
Minimizing Downtime and Maintaining System Performance
Because Epic is central to healthcare operations, minimizing downtime and keeping systems running smoothly is necessary. The integration process should include contingency plans, robust testing environments, and clear rollback procedures to handle any issues quickly. It’s also essential to monitor performance closely during integration to catch and fix any bottlenecks or disruptions, ensuring a seamless transition that doesn’t affect patient care.
Coordinating Across Multiple Stakeholders
Successful Epic integration depends on collaboration among stakeholders, like IT staff, healthcare providers, and third-party vendors. Clear communication and alignment across departments are crucial to ensure the integration supports clinical workflows and meets organizational goals. Bringing Epic-certified experts early on can help streamline coordination, provide best practices, and anticipate potential challenges.
Pitfalls of Epic EMR/EHR Integration You Need to Be Ready For
Inadequate Data Mapping and Translation
Problem: Failing to accurately map and translate data between the health app and Epic can lead to data discrepancies and errors.
Avoidance: Ensure a thorough understanding of data structures in both systems and employ standardized data formats for seamless exchange.
Insufficient Testing and Validation
Problem: Lack of rigorous testing may result in functional gaps and compromise patient safety during integration.
Avoidance: Conduct comprehensive testing, including end-to-end scenarios, and involve stakeholders in validation to identify and rectify issues early.
Poor Interoperability Compliance
Problem: Non-compliance with industry interoperability standards can hinder data exchange and hinder cross-platform usability.
Avoidance: Adhere to relevant interoperability standards and conduct regular audits to ensure compliance throughout the integration process.
Security and Privacy Risks
Problem: Inadequate security measures can expose sensitive patient data to unauthorized access or breaches.
Avoidance: Implement robust security protocols, data encryption, and access controls while adhering to HIPAA and other relevant regulations.
Misaligned Workflows and User Experience
Problem: Integration that disrupts clinician workflows or presents a disjointed user experience can impede adoption.
Avoidance: Engage end-users early, gather feedback, and design integration workflows that align seamlessly with existing processes.
Want to ensure the successful Epic EHR integration and stable data exchange?
Contact LangateWhen the Epic API Isn’t Suitable
- Problem: Epic’s standard APIs might not always meet specific integration needs, which can limit functionality or restrict data access.
- Avoidance: Assess Epic’s API capabilities early in the planning process. If there are gaps, consider using custom development or middleware solutions to enhance compatibility.
What to Consider When Integrating Your Mobile App with an Epic EHR
Integrating your mobile app with an Epic EHR can be a game-changer for patient engagement and data access, but it takes some planning to make it work smoothly. Here are the key things to consider:
Align with Data Standards for Smooth Interoperability
To start, you’ll need to align with Epic’s data standards. Their systems rely on protocols like HL7 and FHIR, so your app should support these to handle complex healthcare data. Early data mapping is key here — it helps reduce discrepancies and boosts accuracy, making interoperability much smoother.
Assess Epic’s APIs and Identify Customization Needs
Next, look into Epic’s APIs and consider any customization needs. Epic offers various APIs through App Orchard, but they might not all fit your app. Assess which ones suit your requirements, and be ready to create custom APIs or use middleware if needed. This way, your app can access the necessary data without slowing down or losing functionality.
Prioritize Security and Compliance for Patient Data
Security is another critical area, especially when dealing with sensitive patient information. Beyond HIPAA compliance, you’ll want to add features like end-to-end encryption, multi-factor authentication, and strict access controls. Regular security tests can help you spot vulnerabilities, keeping patient data safe.
Design for a User-Friendly Experience
User experience is just as necessary. Patients and providers expect a seamless interface where data flows without a hitch. Run usability tests with real users — both patients and clinicians — to fine-tune your app’s design and ensure it fits naturally into existing workflows. A smooth experience drives adoption and satisfaction.
Conduct Thorough Testing and Validation
Thorough testing is also essential to ensure your app works well with Epic. Go beyond functional tests — end-to-end and load testing can simulate real-world conditions and help catch issues early. Involving stakeholders in this phase ensures your app meets technical and clinical needs before launch.
Plan for Scalability and Future Updates
Finally, plan for scalability and future updates. Your app should be built to handle growing data loads and any future integration needs. Regular updates and compliance checks will keep it aligned with Epic’s system and evolving regulations, ensuring long-term sustainability.
Consider Langate’s Professional Assistance in EMR/EHR Epic Integration
Many platforms in the modern healthcare system are used to improve data analysis: EMRs, EHRs, practice management, billing, and therapy.
We have deep expertise in creating healthcare IT integration solutions that resolve the main issues of big data interexchange. We partner with healthcare institutions of all sizes to foster innovation and build platforms that enhance clinical processes, optimizing patient care.
At Langate, we offer expert guidance for seamless EMR/EHR Epic integration. Avoid common pitfalls and ensure a successful implementation with our specialized services.
Let us streamline your health app integration with Epic for improved patient care and efficiency.
Bottom Line
Using benefits of Epic USCDI API opens room for easier and more cost-effective integrations with the Epic EHR system. Even though it has some limits, this API is a good fit if you develop a provider-facing app and you need to view data only.
Integrating with the Epic USCDI API has the potential to take your healthcare software to a new level as it allows quick access to the patient’s information. If you wish to avoid any pitfalls that may arise along the way and seek professional assistance, feel free to contact Langate. We would ensure the successful Epic EHR integration and stable data exchange.



