Legacy EHR data archiving, system by system
The short answer: Legacy EHR data archiving moves historical clinical, financial and HIM records out of a system that is being retired and into a governed archive. BytePad from InterScripts archives MEDITECH, Cerner, Allscripts, GE Centricity, NextGen, eClinicalWorks, legacy Epic and athenahealth data so the source can be shut down while records stay retrievable.
Which legacy EHR systems can BytePad archive?
InterScripts has archived and decommissioned each of the systems below. Every page covers what to preserve, extraction considerations, retention and legal hold, and a phased retirement plan for that source.
MEDITECH
MAGIC · Client/Server · 6.x
MAGIC, Client/Server, 6.x and Expanse history archived so older generations can be retired after a move to Expanse or another EHR.
MEDITECH archiving →Oracle Health (Cerner)
Cerner Classic · Cerner Millennium · PowerChart
Millennium and Cerner Classic history preserved after consolidation, including PowerChart documentation and departmental results.
Cerner archiving →Allscripts / Veradigm
Sunrise · TouchWorks · Paragon
Sunrise (acute), TouchWorks (ambulatory) and Paragon (community hospital) history archived for defensible retirement.
Allscripts archiving →GE Centricity
Centricity EMR · Centricity Practice Solution · Centricity Business
Centricity EMR, Practice Solution and Business history archived after the move to athenahealth products or another EHR.
Centricity archiving →NextGen Healthcare
NextGen Enterprise EHR · NextGen Enterprise PM · Legacy NextGen instances
NextGen Enterprise EHR and PM history archived after practice acquisitions and ambulatory consolidation.
NextGen archiving →eClinicalWorks
eClinicalWorks EHR · eClinicalWorks practice management · Cloud-hosted and on-premises instances
eClinicalWorks clinical, billing and document history archived when practices move onto a health system EHR.
eClinicalWorks archiving →Epic (legacy instances)
Legacy Epic instances · Clarity reporting data · Media and document content
History from retired Epic instances preserved after mergers and consolidations, viewable from the surviving Epic system.
Epic archiving →athenahealth
athenaClinicals · athenaCollector · athenaIDX
athenaClinicals and athenaIDX history archived, with receivables workdown after revenue cycle consolidation.
athenahealth archiving →
What does every legacy EHR archive need?
Whatever the source, the archive has to do the jobs the legacy system did after active care moved elsewhere: chart recall for clinicians, release of information for patients, payers and attorneys, audit and legal hold, receivables follow-up, and retention through defensible disposition.
That means the full clinical record, revenue cycle history past the receivables transition, HIM and disclosure history, and unstructured content such as scanned documents and dictated reports. Unstructured content often makes up 30 to 60 percent of total archive volume, so search that works across documents as well as structured tables matters when choosing a platform.
Retention is set per record type by federal and state rules, including the Medicare Conditions of Participation minimum of 5 years for hospital records, and litigation holds must suspend disposition at the record level. See hospital record retention by state and the EHR data archival guide.
How does BytePad handle legacy EHR archives?
AI Global Search
Search across structured and unstructured archived records from one interface.
100+ connectors
Pre-built connectors for EMR, LIS, RIS, ERP, EDI, file shares and mainframe sources.
Standards-based ingest
HL7, FHIR, X12, DICOM and free-text sources, with BIIG supporting HL7 v2, FHIR R4, CDA, X12 and IHE XDS.
Chain-of-custody and validation
Source-to-target migration with chain-of-custody preservation, schema validation and dual-running.
ROI and disclosure
Release-of-information request management and tracking against the archive.
AR Workdown
Cash posting, reconciliation and workflow management for legacy claims data.
Document management and OCR
Scanned, faxed and unstructured documents converted into searchable records.
Deployment and compliance
Commercial Azure and AWS, Azure Government and AWS GovCloud, under HITRUST r2, SOC 2 Type II and ISO 27001:2022 controls.
BytePad is listed in Epic Connection Hub in the Legacy EHR Archive category. BytePad was reviewed in the KLAS Emerging Company Spotlight (February 2026), where interviewed customers reported 100% Would Buy Again (emerging data per KLAS methodology) and an A+ Likely to Recommend rating (emerging data per KLAS methodology). Learn more on the BytePad platform page and the legacy application support page.
How is a legacy EHR decommissioned in phases?
Every source system follows the four phases of the 12-step legacy EHR decommissioning playbook. Retirement is proven by live retrieval during the read-only window, not by a calendar date.
- Phase 1 · Steps 1 to 4
Discover and plan
Inventory, dependency mapping, retention-schedule mapping and a written disposition policy.
- Phase 2 · Steps 5 to 7
Select the archive and move the data
Platform selection, full and incremental source extraction, then ingest with validation and reconciliation.
- Phase 3 · Steps 8 to 10
Cut over and prove retrieval
Interface sunset, ROI and disclosure workflow validation, and a read-only sustainment window, typically 6 to 12 months.
- Phase 4 · Steps 11 and 12
Sunset and hand off
License termination, infrastructure decommission under chain of custody, and operational handoff.
What do teams ask about legacy EHR data archiving?
What is legacy EHR data archiving?
Legacy EHR data archiving is moving inactive clinical, financial and operational records out of an EHR that is being retired and into a governed archive that preserves retrieval, audit, retention and disclosure. It lets an organization shut down the legacy system and its sustainment costs while keeping the legal record available.
Which legacy EHR systems has InterScripts archived?
InterScripts has archived and decommissioned MEDITECH (MAGIC, Client/Server, 6.x and Expanse), Oracle Health (Cerner Classic and Millennium), Allscripts (Sunrise, TouchWorks and Paragon), GE Centricity, NextGen, eClinicalWorks, legacy Epic instances during consolidations, and athenahealth (athenaClinicals and athenaIDX).
Does each source system need a different archive approach?
The phases are the same, but extraction differs by system. Older platforms may need specialists in their data structures, vendor-hosted and cloud systems depend on export terms agreed with the vendor, and ambulatory and revenue cycle systems need patient matching and a receivables cut-off. Each source page covers those specifics.
How long does a legacy EHR archive and decommissioning take?
A single legacy system typically takes 9 to 18 months from inventory to final sunset, including a 6 to 12 month read-only sustainment window. Enterprise programs that retire several systems run 18 to 36 months.
Can clinicians on Epic see archived records from other systems?
Yes. BytePad is listed in Epic Connection Hub, and archived records can be surfaced to Epic users through patterns such as a Chart Review link or a SMART on FHIR app, so clinicians do not need a separate login for legacy history.
Which system are you retiring next?
Bring your legacy inventory, retention questions and contract dates. We will walk through a BytePad archive and a phased decommissioning plan with your team.
Request a BytePad demoEpic is a registered trademark of Epic Systems Corporation. MEDITECH is a trademark of Medical Information Technology, Inc. Oracle and Cerner are registered trademarks of Oracle and/or its affiliates. KLAS is a registered trademark of KLAS Enterprises, LLC. All other product and company names are trademarks of their respective owners and are used for identification only.