Top 19
Prep plan
Updated weekly · Last refresh Oct 17

Milliman Data Analyst Interview Questions

The questions to prepare for a Milliman Data Analyst interview. Questions from real interview reports rank first. Updated daily.

19questions
~4htotal time
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1
SQL & Data ManipulationStart here. 7 questions · ~78 min
Excel and Programming AssessmentHard
Practice

Audit multi-step assessment submissions for completeness, validation failures, missing values, and ordering errors.

data accuracyExceldata validationMilliman
Explain and Optimize a JOINMedium
Practice

Explain a LEFT JOIN, preserve unmatched policies, and optimize claim aggregation for PostgreSQL.

Performance Tuningdatabase optimizationJoinsMilliman
Detect and Clean Duplicate ClaimsMedium
Practice

Identify duplicate healthcare claims, retain the earliest record, and explain a safe PostgreSQL cleanup process.

data cleaningReconciliationsqlMilliman
Explain a SQL QueryHard
Practice

Explain a SQL query's joins and aggregations, identify logic issues, and produce a corrected PostgreSQL result.

Joinssqldata validationMilliman
Walk Through Dataset AnalysisMedium
Practice

Analyze claims by region, combining policyholders and payments while identifying missing or inconsistent claim data.

JoinsData Analysisdata validationMilliman
LEFT vs INNER JOIN for PatientsEasy

Tests join selection and correctness when combining healthcare datasets with different coverage.

JoinsData WranglingsqlMilliman
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2
Behavioral & Leadership11 questions · ~123 min
Owning a Submitted Analysis ErrorEasy

Tests ownership, self-awareness, and communication when a candidate finds a mistake in their own completed analysis.

failureOwnershipaccountabilityMilliman
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3
More topics1 question · ~11 min
The finish line: interview-readyComplete all 19 questions to finish this plan.