Elena Zavalishina

Technical Product Lead — MDMbox

Elena Zavalishina is a contributor to the Health Samurai blog, sharing insights on FHIR, healthcare technology, and digital health solutions.

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Articles with Elena Zavalishina participation (3)

Configuring and Tuning a Patient Matching Model: A Practical Guide

May 14, 2026

2 min read

Configuring and Tuning a Patient Matching Model: A Practical Guide

How to configure and fine-tune a patient matching model in MDMbox — from defining match criteria and model structure to blocking, training, and manual tuning.

Thousands of Duplicate Records in the NPI Registry

May 12, 2026

3 min read

Thousands of Duplicate Records in the NPI Registry

We analyzed 7 million records in the NPI Registry and found thousands of providers with multiple NPIs. Explore the duplicates yourself with our interactive tool.

Duplicate Patient Records in Healthcare Analytics

Apr 14, 2026

7 min read

Duplicate Patient Records in Healthcare Analytics

How duplicate patient records silently corrupt healthcare analytics — inflating population metrics, fragmenting clinical histories, skewing cohort construction, and biasing ML models — and why identity resolution upstream is the structural fix.