Caristo Diagnostics Names Stephen Deitsch as CEO

Apr 14, 2026
Caristo Diagnostics has appointed Stephen M. Deitsch as its new Chief Executive Officer, effective immediately. Deitsch, previously CFO of OrganOx, succeeds Frank Cheng, who will become Chief Operating Officer.

Caristo Diagnostics has appointed Stephen M. Deitsch as its new Chief Executive Officer, effective immediately, announced in a press release. Deitsch, a board member at Caristo, brings over 25 years of experience in medtech and healthcare leadership. He previously served as Chief Financial Officer at OrganOx, where he led the company's 2025 sale to Terumo Corporation for $1.5 billion.

Deitsch succeeds Frank Cheng, who has been named Chief Operating Officer after serving as CEO since 2023. During Cheng’s tenure, Caristo introduced its CaRi-Plaque analysis in the U.S. and advanced regulatory progress for its CaRi-Heart technology.

Caristo’s AI-based CaRi-Heart system, which detects coronary inflammation, is commercially available in the UK, Europe, and Australia. The company also received FDA clearance in 2025 for CaRi-Plaque, which provides plaque and stenosis quantification for U.S. hospitals, imaging centers, and research partners.

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