Drupal 7 → 10 Migration for Regional Health Network

A zero-downtime migration of a complex multi-site healthcare platform serving 2M+ patients — rebuilt for security, compliance, and long-term scalability.

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Client Regional Health Network

Industry Healthcare

Timeline 14 weeks

Services Migration, Security, Multi-site

Project Overview

The client operated a Drupal 7 multi-site platform across 12 regional facilities, each with its own content needs but shared infrastructure. With Drupal 7 nearing end-of-life, they needed a migration path that wouldn't disrupt patient-facing services or violate compliance requirements.

The Challenge

12 interdependent sub-sites on legacy Drupal 7
Zero tolerance for downtime on patient portals
Strict HIPAA-aware data handling requirements
Dozens of custom, unaudited legacy modules

The Solution

Full module risk audit before migration planning
Phased, site-by-site migration to Drupal 10
Automated content-parity testing at every stage
Blue-green deployment for zero-downtime cutover

Approach

We broke the project into four phases — audit, plan, build, and cutover — each with client checkpoints. Custom modules were rebuilt using modern Drupal APIs, and a staging environment mirrored production for full regression testing before each site went live.

Results

All 12 sites were migrated with zero recorded downtime. Page load times improved by 45%, editorial teams gained a modernized content workflow, and the platform is now positioned for long-term Drupal 10+ support.