How Much Does Epic Integration Cost — And How Long?
The honest answer: it depends on your app type and direction, and — more than anything — on each customer's review cycle, not the code. Here are the ranges teams actually see, what drives them, and how to bring them down.
Why "How Much Does Epic Integration Cost?" Has No Single Answer
Every guide quotes a different number because they're measuring different things. So let's be precise. For a third-party product integrating an app with Epic, a single read-only FHIR connection commonly starts around $15K, and a typical build lands in the $18K–$80K range — Epic is usually the priciest of the major EHRs to integrate because its program and certification steps add process on top of the engineering. Full, multi-surface builds (FHIR + HL7 v2) run higher, and hospital-scale enterprise programs are a different universe entirely ($500K–several million in year one) — that's health systems, not app vendors.
But the number that actually determines your timeline usually isn't in the code. It's the per-customer security and technical review: every health system that runs your app authorizes and reviews it on their own schedule, and that queue routinely takes longer than the development. Add a resource type and you add roughly two to four weeks; add a customer and you add a review cycle.
Find the Range That Matches Your Build
Pick the integration that's closest to yours to see a realistic timeline, cost band, team, and what drives it.
Read-Only FHIR App
Pull demographics, results, meds, and problems into your product via US Core FHIR reads — no write-back, so you skip the validation and certification work that writes trigger. The fastest, cheapest way onto Epic.
Team
Usually 1–2 engineers plus part-time QA. A focused effort, not a program.
What's Included
SMART on FHIR launch, US Core reads, sandbox testing, and one customer go-live.
What Drives It
Number of FHIR resource types (each ≈ +2–4 weeks) and how many customers you onboard.
Watch For
"Read-only" still needs each customer's review — the code is fast, the approvals aren't.
Bidirectional (Read + Write)
Write back to the chart — Observations, DocumentReferences, orders — in addition to reading. Writes add validation, error handling, and more scrutiny in review, which is where the extra cost and time come from.
Team
2–3 engineers, QA, and closer clinical/informatics input for write workflows.
What's Included
Everything in read-only, plus scoped writes, robust error handling, and tighter conformance testing.
What Drives It
Which resources you write, and the extra security review that write scopes attract.
Watch For
Over-broad write scopes slow every customer review — least privilege pays for itself.
Full Build · FHIR + HL7 v2
Multiple data flows across FHIR and legacy HL7 v2 interfaces, multiple environments, and real-time events. This is a program, not a project — common for platforms with deep, multi-workflow Epic footprints.
Team
A small team — engineers, an integration architect, QA, security — over several months.
What's Included
FHIR + HL7 v2 interfaces (ADT/ORU/ORM/SIU), Bridges/interface-engine work, multi-environment testing.
What Drives It
Interface count, environments, and coordinating go-lives across several customers.
Watch For
Per-interface maintenance (~$3K–$15K/yr each) adds up — design for reuse from day one.
Enterprise / Hospital-Scale
A health system's own multi-year, multi-site integration program — dozens of interfaces, many teams, clinical governance. A different category from a vendor app, listed here so you don't confuse the two numbers.
Scope
Mid-size systems (50–200 beds) commonly ~$500K–$2M in year one; large multi-site enterprises $5M–$20M+.
Who It's For
Provider organizations, not app vendors — if you're building a product, you're in the ranges above.
What Drives It
Number of interfaces and sites, data migration, and clinical change management.
Watch For
Blended blog "Epic cost" figures often quote this scale — make sure you're comparing like with like.
Ranges synthesized from multiple 2026 industry cost guides — indicative, not Epic's official pricing. We give you a specific number after a scoping call.
The Six Things That Move the Number
Change any of these and your estimate moves. Knowing them up front is how you avoid a surprise.
Read vs Write
Reading is cheap; writing back triggers validation, error handling, and more security scrutiny. Write-back is the single biggest step up in cost and time.
FHIR vs HL7 v2
FHIR costs more up front (OAuth, SMART, security) but is cheaper to maintain. HL7 v2 is cheaper to build but needs more transformation logic and ongoing upkeep.
Number of Resource Types
Every additional FHIR resource or interface adds roughly two to four weeks of build, mapping, and testing. Scope tightly to what the workflow actually needs.
Number of Customers
The build is reusable — the review isn't. Each health system authorizes and reviews your app on its own timeline, so customers multiply the schedule more than the code does.
Epic Program & Process
Sandbox registration, the security/technical review, and (optionally) a Connection Hub / Showroom listing add process. The build is free; production distribution isn't.
Maintenance
Plan ~$3K–$15K per interface per year (≈15–20% of the build). APIs get versioned, customers upgrade on their own schedules, and certifications renew.
How Long Does Epic Integration Take?
A read-only FHIR app can be live in a couple of months; a full build takes most of a year. Here's where the time actually goes — and why approvals, not code, set the pace.
Discover & Scope
Pin down app type, resources, scopes, and target customers.
Build & Test
Develop against the sandbox; ~2–4 weeks per resource type.
Certify
Validate against US Core & Inferno g10 before customers see it.
Customer Review
The health system's security/technical review — often the long pole.
Go-Live (Repeat)
Activate, monitor — then repeat the review for the next customer.
Approval cycles at Epic and at each customer routinely take longer than the development itself — which is exactly why we manage them in parallel with the build.
One-Time vs Recurring Costs
The build is a project; the integration is a relationship. Budget for both.
How to Make Epic Integration Cheaper
Most overspend comes from scope and rework, not rates. These are the levers we pull.
Ship a read-only FHIR app first to prove value fast and cheap; add write-back later when it's justified.
Ask only for the resources and operations you use. Tight scopes make every customer's security review faster.
The code is reusable across customers — invest in a repeatable per-customer onboarding so customer #10 is cheap, not another project.
Epic app records are immutable once live — a wrong redirect URI or scope means re-registration. We lock these down before you go ready-for-production.
Where FHIR covers the use case, it lowers long-term maintenance vs custom HL7 v2 transforms — even if the upfront build is a bit higher.
If you need many EHRs fast with a small team, a platform like Redox can beat a native build — see our build-vs-buy comparison.
Epic Integration Cost, Answered
The money questions, straight.
How Much Does It Cost to Integrate with Epic?
How Long Does Epic Integration Take?
Why Is Epic the Most Expensive EHR to Integrate?
Does Epic Charge for API Access?
What Are the Hidden Costs of Epic Integration?
Can We Make Epic Integration Cheaper?
More on Epic Integration
Epic Integration, End to End →
The full ecosystem, programs, Vendor Services, Showroom, and the vendor journey.
Build a SMART App for Epic →
The three launch types, the OAuth flow, scopes, and app registration.
EHR Integration Across Vendors →
Epic, Oracle Health, athenahealth, MEDITECH and more — and their costs.
Skip the Ranges — Get a Quote for Your Build.
Tell us your app type, the data you need, and your target customers. We'll give you a specific cost and timeline for your Epic integration — reviewed by an engineer, not a sales queue.
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