MEET THE ARCHITECTS

The Minds Behind Vaark's Vision

Our team is a blend of dreamers, doers, innovators, and strategists. Each one committed to transforming raw ideas into influential businesses. Dive in and get to know the individuals who make Vaark thrive.
Timothy Martens
Founder & Partner
As a seasoned Congenital Heart Surgeon, Tim combines surgical precision with startup acumen, making him an invaluable asset in the realm of healthcare ventures.
Arthur Mosh
Founder & Partner
Arthur's vision is not just limited to the design palette. As an award-winning design leader, he excels in painting the big picture, infusing energy and fostering a culture of innovation.
Ira Reisman
Operating Partner
With a deep well of knowledge spanning from cloud technology to cybersecurity and beyond, Ira stands at the forefront of IT, ensuring our ventures are not only visionary but also secure and efficient.
Alex Tang
Venture Partner
Alex is an entrepreneur, investor and healthcare operational strategist with 16+ years of experience.  Initially a trauma and neurosurgery PA, Alex pivoted to leadership roles and is currently the VP of Clinical Strategy & Innovation for CareAbout Health where he leverages technology to drive value-based care for multispecialty practices.  He is also the founder of MedTriArch Group, where his team provides strategic and operational support to start-ups across the healthcare ecosystem.
Joseph Jasser
Venture Partner
Joe is a seasoned C-Suite Healthcare Executive with a strong background in value-based care and integrated delivery systems, most recently serving as COO of Cleerly Health. Previously, he held key roles such as CMO at Elara Caring and Signify Health, CEO of Dignity Health Medical Foundation, and President of Humana’s $3.3B Care Delivery Organization.  Joe brings decades of experience implementing clinical strategy and care delivery for providers, payors, and patients.
Rishie Seth
Venture Partner
Rishie is a general internist and administrative leader in a large health network in Toronto and previously served as a medical advisor for VentureSouq (UAE). This blend of experiences gives him a unique perspective valuable to any healthcare startup.
Jeremy Branham
Technology Partner
A technology architect known for his problem-solving skills, diverse expertise, and contributions to open-source. Jeremy excels in designing and implementing solutions for complex application platforms. His experience spans SMB, enterprise, and government infrastructure.
Jamie McGlothlin
Technology Partner
As a principal owner and the national health care analytics lead for RSM, Dr. McGlothlin combines big data analytics, information retrieval, cloud computing, and machine learning to drive performance improvement for health care organizations and providers.
Neeraj Seth
Technology Partner
With over 25 years of experience in software development and digital transformation, Neeraj is a seasoned entrepreneur who has successfully launched and scaled multiple startups. He focuses on identifying high-potential opportunities and mentoring aspiring entrepreneurs to foster an inclusive tech community.
Tianna Umann
Advisor
A business strategy and technology thought leader driving leading edge AI-based Data and AI security innovations anchored on compliant, privacy preserving technologies.  Currently the Chief Innovation Officer at Equideum Health, Tianna draws upon her deep prior experience in academia (Columbia University), healthcare (Northwell Health), and big tech (Microsoft) to bring transformative solutions to market.
Chethan Sathya
Advisor
Chethan Sathya, MD, MSc, is a pediatric surgeon and public health expert.  Dr. Sathya's work at the intersection of health technology, policy, and public health seamlessly spans the corporate, government, and academic sectors. He has led a number of national healthcare coalitions on various healthcare issues and advises numerous healthtech  startups.  He brings a wealth of knowledge and experience on the healthcare start up ecosystem and clinical workflow applicability.