Hospitals rarely plan a system transition around registry deadlines, but registries do not pause while an EMR conversion, a merger, or a platform retirement is underway. Data migration and abstraction services close that gap, combining the technical work of moving clinical records between systems with the clinical review needed to keep registry submissions accurate once those records arrive.
Clinical Registry Solutions supports hospitals through that disruption, pairing onshore, clinician-led clinical data abstraction services with a validated 98.3%+ Inter-Rater Reliability rate across 25 or more registries. This guide covers what data migration and abstraction services include and how CRS keeps registry programs on track when the underlying system changes.
→ Facing an EMR transition, merger, or system retirement and worried about your registry data? Fill out our form and let’s talk.
What Do Data Migration and Abstraction Services Actually Cover?
Data migration and abstraction services are often discussed as if they are one activity, but they solve two different problems that tend to show up at the same time.
Data migration is the technical transfer. It involves extracting data from a legacy platform, transforming it to match the destination system’s structure, and loading it into the new environment. That work usually falls to IT teams or EMR vendors, and it focuses on moving data without loss or corruption.
Clinical data abstraction is the clinical review. It requires a trained professional, often a registered nurse or credentialed abstractor, to read the medical record and pull the specific data elements a registry requires, using that registry’s exact definitions. A system export cannot replicate that work, because it depends on clinical judgment and familiarity with registry-specific coding rules.
Hospitals need both for a simple reason. A record can move successfully from the old EMR to the new one without the data inside it being registry-ready. Fields shift, values drop, and free-text documentation loses context in translation. Pairing the transfer with a structured approach to data integrity is what turns a migrated record into a submission-ready one.

Why Do Hospitals Need Data Migration and Abstraction Services During EMR Transitions?
EMR transitions are among the most disruptive events a registry program faces. Whether a hospital is moving to Epic, consolidating onto Oracle Health following a Cerner transition, or switching Meditech environments, the registry team rarely drives the timeline.
Historical and active cases split across two systems. Records may sit in the legacy system for a defined retention period, but active registry cases can span the cutover date, leaving part of a patient’s clinical course in the old system and part in the new one.
Discrete fields do not map cleanly. Data fields that fed abstraction tools in the old EMR frequently do not translate directly into the new platform’s structure, which is why hospitals often need audit-ready processes built back into the workflow before submissions resume.
Internal abstractors also get pulled into go-live work. Registry staff already carrying a full submission workload are asked to support IT testing and training at the same time.
The result is predictable. Submissions that were on schedule start slipping, and quality checks that used to run automatically now need manual verification. Data migration and abstraction services add capacity exactly when internal teams are stretched thinnest, which is the point at which most hospitals bring CRS in.
→ Are your internal abstractors being pulled into IT testing while registry deadlines keep approaching? Fill out our form and CRS can provide supplemental support.
What Risk Do Registry Data Gaps Create During System Conversions?
The clearest risk of an unmanaged transition is a data gap, where cases fall out of the abstraction workflow or get abstracted from incomplete documentation. Registries such as the ACC NCDR programs and the STS Adult Cardiac Surgery Database rely on defined data element specifications, so inconsistencies during a conversion window can affect inter-rater reliability performance and national benchmarking standing.
The NCDR Data Quality Program audits hospitals against national performance on individual data elements and reports results back so facilities can see where accuracy needs work. Inconsistent abstraction during a conversion can surface in those results months later, well after the transition is finished.
Compliance exposure follows close behind. Accreditation programs, including MBSAQIP and NSQIP, expect consistent, timely submissions to maintain accredited status, and what NSQIP requires shows how quickly a transition-era gap becomes a documented deficiency during a survey cycle. Hospitals that treat data migration and abstraction services as part of the conversion plan, rather than cleanup afterward, avoid most of that exposure.
→ Is your registry data at risk of falling behind national benchmarks during your system conversion? Fill out our form and CRS can help protect your accuracy through the transition.
How Do CRS Data Migration and Abstraction Services Support Mergers and Acquisitions?
EMR conversions are not the only trigger for this kind of work. Hospital mergers, acquisitions, and health system consolidations create a similar need, often on a faster timeline and across more facilities at once.
When one health system acquires another, the acquired hospital typically moves onto the parent organization’s EMR platform and registry workflows. Historical data, active cases, and in-progress submissions all need reconciling against the new system, and against whatever standardized registry approach the parent already runs.
Clinical judgment matters as much as technical accuracy here. Two hospitals rarely document identically, even on the same registry, because abbreviations, workflow habits, and templates differ by facility. A technical migration moves the data, but only a clinically trained abstractor can review those records against the registry’s definitions and confirm they are submission-ready. That review is the part of data migration and abstraction services CRS performs, alongside whichever IT team handles the transfer.
Health systems managing multi-facility consolidations also face a staffing math problem. Acquiring a hospital rarely means acquiring enough registry staff to absorb the added volume. CRS covers that gap, scaling capacity up during the consolidation window and back down once staffing settles.
→ Is your health system absorbing a newly acquired hospital’s registry data without added abstraction capacity? Fill out our form and CRS can provide support that scales with your consolidation.

How Does CRS Protect Historical Registry Data When a Legacy System Is Retired?
A less discussed scenario involves retiring a legacy system altogether. Hospitals often keep an old EMR or registry database running for years after go-live purely because historical data still lives there, carrying licensing costs, security exposure, and maintenance burden for a system clinical staff no longer use.
Decommissioning that system safely requires more than a data export. Registries often need access to historical cases for trend reporting, outcomes tracking, and periodic re-audits, and registry data carries strategic value beyond compliance, which is why decommissioning is not a purely IT decision.
If a hospital shuts down the old system without abstracting and validating historical registry data first, that information can become difficult to retrieve later, particularly if it sat in free-text notes or non-standard fields that do not translate cleanly into a structured archive.
The CRS approach separates what must stay fully accessible in the new system, what can be archived for occasional reference, and what needs formal abstraction before the old platform goes offline. CRS abstractors work through those cases while the legacy system is still live, so data migration and abstraction services keep registry data from being stranded behind a platform the hospital has stopped paying for.
→ Are you planning to retire a legacy EMR or registry database without a plan for the historical data inside it? Fill out our form and CRS can help you abstract and validate it first.
How Does CRS Deliver Data Migration and Abstraction Services?
Clinical Registry Solutions works as a clinician-led extension of the internal registry team rather than a software vendor asking hospitals to adopt a new platform.
CRS abstractors are U.S.-based clinical professionals, including registered nurses and credentialed abstractors, trained across more than 25 national and specialty registries and experienced within different EMR environments, including Epic, Cerner, and Meditech. The onshore model matters during a conversion, because migrated documentation rewards clinical familiarity.
Engagement models are built for transition periods. Hospitals bring CRS in for full-service abstraction during the transition window, supplemental coverage to backfill staff pulled into IT work, or a focused project to clear the backlog that built up during the change.
CRS also provides ongoing audit and quality review support and submission oversight, so deadline tracking and IRR monitoring do not fall through the cracks while attention is focused on the migration itself.
Because CRS data migration and abstraction services run inside existing hospital systems, there is no extra platform to implement on top of the EMR transition already underway, and onboarding typically begins within days. That is a real difference from software-first or AI-driven abstraction platforms, where automated tools struggle with the nuance of migrated or inconsistently documented records.
→ Do you need registry abstraction support that adapts to your specific EMR environment without adding new software? Fill out our form and CRS can begin supporting your program within days.
Which Registries Do CRS Data Migration and Abstraction Services Cover?
A transition touches every registry a hospital participates in at once, so partial coverage creates its own problem. CRS supports more than 25 registry and specialty programs, so one partner can carry a hospital’s full portfolio through the conversion.
Cardiac programs include ACC NCDR registries such as CathPCI, Chest Pain MI, ICD, and AFib Ablation, alongside the STS Adult Cardiac Surgery Database. High-volume cath lab and cardiac surgery programs feel a migration first, because case volume leaves no room to pause, and STS registry abstraction depends on consistent interpretation of the documentation conversions disrupt.
Stroke and vascular programs run through GWTG registry support, including GWTG Stroke, Heart Failure, and Coronary Artery Disease. Surgical programs run through NSQIP and bariatric programs through MBSAQIP, where accreditation support matters as much as case abstraction during a system change.
CRS also supports cancer registry programs including NCDB, SEER, and state cancer registries, pediatric cardiac programs such as PC4, PAC3, and STS Congenital, and hospital quality reporting through core measures abstraction. Each has its own data element definitions, which is why registry breadth is a practical requirement for data migration and abstraction services.

Where Does CRS Provide Data Migration and Abstraction Services?
Registry abstraction does not require anyone on site, which is why CRS delivers remote data abstraction services to hospitals across the United States and Canada. A rural hospital and a multi-site health system on the East Coast get the same abstraction team, registry standards, and IRR monitoring.
All abstraction is performed onshore by U.S.-based clinical professionals, with no offshore work. Records coming out of a conversion are often incomplete or inconsistently mapped, and interpreting them depends on familiarity with how American hospitals document care. Security expectations also run higher during a system change, and a domestic team working inside the hospital’s own environment keeps that footprint contained.
CRS began as a small cardiac-focused abstraction firm in rural Minnesota and now operates nationally with more than 100 clinical professionals supporting over 100 hospitals. Where abstractors are hard to recruit locally, remote data migration and abstraction services remove the hiring constraint, which often decides the matter when a transition creates sudden demand.
→ Is your hospital in a region where experienced registry abstractors are difficult to hire? Fill out our form and CRS can provide onshore remote coverage wherever you are.
Who Does CRS Support Beyond Hospitals?
Hospitals and health systems make up most of the demand for data migration and abstraction services, but they are not the only organizations facing this problem. CRS supports three types of clients.
Hospitals and health systems are the core audience. Quality directors, registry managers, CNOs, and clinical program leaders bring CRS in to reduce backlogs, hold IRR benchmarks, and stay accreditation-ready without adding permanent headcount.
Clinical research organizations need accurate abstraction from EMRs into study databases on sponsor or IRB timelines that do not move when a site changes systems. When a site converts its EMR mid-study, the abstraction requirements stay the same, and CRS holds consistency across sites throughout.
Healthcare staffing agencies use CRS as a white-labeled abstraction partner. An agency with registry staff placed at a hospital going through a conversion can extend coverage without building specialty expertise internally, keeping their client compliant through the disruption.
What Other CRS Services Support a Registry Program After the Migration?
A system transition tends to expose problems that were already there, so the work rarely stops when the migration ends. The broader set of CRS services picks up where data migration and abstraction services leave off.
Full-service abstraction hands the entire registry workload to CRS, which suits hospitals that lost staff during a transition or chose not to rehire after a consolidation. Supplemental abstraction keeps the internal team in place and adds capacity where volume demands it, the more common arrangement during and just after a conversion.
Backlog clearance addresses cases that accumulated while attention was elsewhere. CRS reviews the queue, prioritizes against approaching deadlines, and brings submissions back onto schedule without new headcount.
Audit and quality review rebuilds confidence in the data afterward. IRR monitoring, data validation, and audit preparation confirm that abstraction stayed consistent across the cutover rather than drifting unnoticed until a national benchmarking report arrives.
Registry accreditation support covers mock surveys and standards alignment for programs such as MBSAQIP and NSQIP, where a survey cycle may land uncomfortably close to a system change. And clinical data abstractor training helps hospitals rebuild internal capability in the new EMR environment, so the program is stronger after the transition than it was before.
→ Did your system transition expose gaps in your registry program that outlast the migration itself? Fill out our form and CRS can help you close them.
What Should Hospitals Look for in a Data Migration and Abstraction Services Partner?
Not every abstraction vendor is equipped to support a system transition, so it is worth knowing what separates a strong partner from a risky one.
Clinical credentials come first. A vendor whose abstractors are registered nurses or clinically trained professionals, rather than data entry staff following a script, will be far better equipped to interpret documentation that does not translate cleanly during a migration.
Registry-specific experience matters just as much. A partner who has worked across NCDR, STS, MBSAQIP, and GWTG already understands the data element definitions a hospital needs met, rather than learning them mid-engagement. That depth connects to the value hospitals get from registry participation, since accuracy during a transition protects the benchmarking position already built.
Flexibility beats a rigid contract. A transition creates an uneven workload, heavy some weeks and lighter in others, so a partner who can scale support up or down without a long-term volume commitment fits better.
Fast onboarding is non-negotiable. A timeline set by an EMR vendor or a merger agreement rarely leaves room for a multi-month vetting process, which is why CRS onboards most programs within days.
No new proprietary platform. Adding software during a complex system change increases risk rather than reducing it. A partner who plugs into current EMR and registry tools, validates migrated data, and clears backlogs without new infrastructure makes the transition smoother. Hospitals weighing options can contact CRS to compare data migration and abstraction services against their internal approach.
→ Not sure what to look for when evaluating a partner for your next EMR transition? Fill out our form and CRS can walk you through our model.

Choosing CRS for Data Migration and Abstraction Services
System transitions, mergers, and legacy platform retirements will keep happening, and registry deadlines will not move to accommodate them. Data migration and abstraction services give hospitals a way to protect submission accuracy while a much larger technical project runs around them. The hospitals that come through a transition with their registry standing intact are usually the ones that brought in clinical abstraction support early, rather than waiting until a backlog or missed deadline forced the issue. CRS supports over 100 hospitals across more than 25 registries with validated 98.3%+ IRR accuracy, and can help your team plan for the next system change.
→ Your registry data should stay accurate through every system change, not just the easy ones. Fill out our form and let CRS build a data migration and abstraction plan for your team.
→ Want registry guidance like this before your next system change? Follow Clinical Registry Solutions on LinkedIn for abstraction insights, accreditation updates, and registry news.
CRS Data Migration and Abstraction Services: FAQs
What is the difference between data migration and clinical data abstraction at CRS?
Data migration is the technical process of moving records between systems, usually handled by IT teams or EMR vendors. Clinical data abstraction is a trained clinical professional reading the record and pulling registry-specific data elements according to that registry’s definitions. CRS data migration and abstraction services focus on the abstraction side, so data arriving in a new system is accurate and submission-ready.
How does CRS support hospitals during an EMR transition?
CRS provides supplemental or full-service abstraction that scales with the transition timeline, helping hospitals maintain registry accuracy while internal staff are pulled into IT testing and training. CRS abstractors work across Epic, Cerner, Meditech, and other systems, so onboarding needs little platform-specific training.
Can CRS help clear a registry backlog caused by a system conversion?
Yes. Backlog clearance is one of the most common reasons hospitals bring in CRS during or after an EMR transition. CRS reviews accumulated cases, prioritizes approaching deadlines, and brings submissions back on schedule without permanent headcount.
Does CRS work with hospitals that already have internal abstractors?
CRS regularly supplements internal teams rather than replacing them. Many hospitals use CRS to add capacity during a transition, merger, or backlog period while internal abstractors handle their normal caseload. CRS also trains internal abstractors when a hospital wants to rebuild capability in the new system.
How quickly can CRS onboard for a migration or transition project?
CRS can typically begin supporting a registry program within days. Because CRS abstractors are already trained across multiple EMR environments and 25 or more registries, ramp-up time is minimal compared to hiring internal staff.
What EMR and registry systems does CRS work within?
CRS is platform agnostic and works within a hospital’s existing EMR and registry environment, including Epic, Cerner, Meditech, and other systems. No proprietary software adoption is required, which matters when a hospital is already implementing a new platform.
How does CRS pricing for data migration and abstraction services compare to hiring internally?
CRS uses transparent hourly or case-based pricing without hidden platform fees. Hospitals commonly see average cost savings of 30% or more compared to the full cost of internal abstraction once salaries, benefits, turnover, and training are counted.
What makes CRS different from software-first abstraction vendors?
CRS abstraction is performed entirely by onshore, U.S.-based clinicians rather than automated tools, backed by 98.3%+ validated IRR accuracy across more than 25 registries. When migrated documentation is inconsistent or incompletely mapped, clinical judgment is needed to interpret the record accurately, a gap automated platforms can struggle to close.





