DIRECT DIFFERENCE TEAM

Annastasia St. Louis, BSN, RN – Direct Difference

Ana Stewart, RN

Clinical Data Specialist and Account Manager

Ana Stewart is a Registered Nurse with more than 20 years of nursing experience, specializing in cardiac catheterization, interventional cardiology, emergency medicine, and post-anesthesia care. Her background in advanced cardiovascular nursing, clinical education, and healthcare quality improvement provides a strong foundation for understanding complex clinical workflows and the documentation requirements that support accurate quality reporting.

Ana joined Direct Difference in 2026 as a Clinical Data Abstractor before transitioning to the Account Manager role. During her time with DD, she has developed experience with cardiovascular quality registries, including the American College of Cardiology’s National Cardiovascular Data Registry (NCDR) programs. Her clinical and abstraction experience supports the identification of documentation gaps and the coordination of registry data and submissions.

In her current role, Ana partners with healthcare organizations to coordinate abstraction services, support registry workflows, and address operational needs. She works collaboratively with hospital teams to resolve challenges, facilitate communication, and promote accurate and reliable reporting.

Combining extensive bedside nursing experience with cardiovascular registry knowledge, Ana brings a practical clinical perspective to client relationships. Her commitment to responsive communication and collaboration helps strengthen data integrity, support compliance, and advance each organization’s quality reporting goals.

Data Registry
Abstraction

Direct Difference supports accurate, reliable data abstraction of clinical data registries. Our commitment is excellence.

Core Measures &
Data Abstraction

We have been abstracting and supporting core measure abstraction since its inception. We offer unparalleled expertise.

Medical Records
Research/Peer Review

Ask us about our customized processes for OPPE and FPPE reviews for Emergency, Medical, Surgical, Anesthesia Services.

Technology & Software
Solutions

We’re an effective and efficient partner, with extensive affiliations and support for specialized technology and software.

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