Diplomat is the nation’s largest independent provider of specialty pharmacy services—helping patients and providers in all 50 states. We build solutions for today’s issues while laying the groundwork for tomorrow’s healthcare. Rooted in specialty pharmacy, our brands harness innovation to create a healthier world. These include: • Diplomat Specialty Infusion Group: Our specialty infusion services deliver treatments nationwide, but a high-touch approach makes our care personal. • Diplomat Specialty Pharmacy: We help patients across the country face complex and often rare conditions. • CastiaRx: The industry’s leading specialty benefit manager, combining full-service pharmacy benefit manager capabilities with deep specialty expertise. • EnvoyHealth: Firewalled from other Diplomat business, EnvoyHealth is a full-service healthcare solutions company using innovation and technology to help partners improve lives. At Diplomat, we are more than 2,000 professionals working together nationwide to help patients realize health, happiness, and longer, fuller lives. We stand behind our employees with exceptional benefits, continuing education, and award-winning wellness programs. We want this to be the greatest place you’ve ever worked. And we believe it will be.
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The Diplomat annual revenue was $559.9 million in 2026.
Atheer Kaddis is the Executive Vice President, Sales and Strategic Alignment of Diplomat.
274 people are employed at Diplomat.
Diplomat is based in Flint, Michigan.
The NAICS codes for Diplomat are [456, 45, 44].
The SIC codes for Diplomat are [591, 59].