Case Study: Mabel achieves 30–50x higher response rates with Lob

How Mabel unlocked a new marketing channel in healthcare by sending personalized direct mail on behalf of doctors

Mabel, a healthcare communications platform serving Medicare patients, needed a scalable way to personalize and send doctor-branded direct mail as it grew to support 3,000 clinics and millions of letters. Manual workflows for stuffing envelopes, managing printers, and handling proofs were slowing outreach and making it hard to prove campaign effectiveness. To solve this, Mabel turned to Lob’s API-powered direct mail platform.

With Lob, Mabel automated personalization, production, sending, and delivery tracking for clinic-specific mailers using EHR data, clinic branding, and real-time analytics. The result was 30–50x higher response rates than industry norms, an average response rate of about 5%, and more than $360 million in incremental revenue for clients, with over 60% attributed directly to direct mail.

Mabel

Abhas Gupta

Chief Executive Officer