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AI-Assisted Duplicate Health Record Matching

Accountable
Department of Health and Mental Hygiene (DOHMH)
Functional Modes
Deciding (Analytical AI)
Human decides
Purpose
Inform
Input Dataset
Sensitive personal information Identifiable data
Algorithm or Model
Classification & Prediction
Output Dataset
A recommendation or prediction Anonymized data

ChoiceMaker is a record-matching tool used daily by the NYC Department of Health and Mental Hygiene to find duplicate immunization and lead-exposure records belonging to the same person. It compares demographic and health event data, then assigns a probability score to each candidate record pair so staff can merge duplicates. The system operates under human supervision — staff review and act on the matches it surfaces.

Sources for this disclosure

This disclosure was drafted with AI assistance.

Schema: ai@2026-05-06-beta