About Ari Shamiss
Ari Shamiss is a director of Ascertain Systems, which automates healthcare paperwork.
Experience
This experience comes from official bios and from SEC filings. For roles taken from filings, the years are when the filings name Ari Shamiss in the role, so the role may have started earlier or lasted longer.
Ascertain Systems, Inc. Current
Director
2026 – Present · New York, NY
Its artificial intelligence agents handle prior authorizations, care coordination, and other healthcare paperwork.
Key Colleagues at Startups
The people Ari Shamiss works with at each company, as listed on that company's latest Form D.
Ascertain Systems, Inc. · Form D, Oct 20, 2026

Mark Michalski
Chief Executive Officer and director
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Carlos Dedesma
Director of Operations & Finance

John Beadle
Co-founder and Managing Partner of Aegis Ventures, director
CM
Courtney Marcin
Director

Moses Adubi
Director

Julian Harris
Operating Partner Healthcare Services at Deerfield Management and director