About Grelin Health

Dr. Dev brings over a decade of experience in the IT industry, having held both technical and managerial roles across global markets. With a Bachelor's degree in Computer Science Engineering from Chennai, India, and further training in Software Engineering in Ireland, he blends strong technical foundations with strategic leadership.

A serial entrepreneur at heart, Dr. Dev co-founded Tyfnbox, a Miami-based meal box service in 2018, where he played a key role in launching and scaling the venture before stepping away to pursue new opportunities. During the COVID-19 pandemic, he successfully launched a personalized diet plan service in India, delivering over 5,000 customized plans within just four months—demonstrating his ability to build impactful solutions under pressure.

Dr. Dev founded Grelin Health after witnessing firsthand the inefficiencies in medical billing and coding across healthcare organizations. With over 10 years of experience in the healthcare industry, he deeply understands the challenges of the current two-tier system, where billers and coders often operate in silos—leading to revenue loss and operational inefficiencies.

Under his leadership, Grelin Health has developed an innovative, automated Root Cause Analysis (RCA) and coding system designed to streamline workflows, improve accuracy, and help providers maximize revenue. As CEO, Dr. Dev is committed to transforming healthcare billing through technology, transparency, and intelligent automation.

Mangal Raj is a distinguished healthcare operations executive with over 21 years of experience in Medical Billing and Revenue Cycle Management (RCM). Renowned for his strategic foresight and executional excellence, Mangal has consistently led high-impact teams, built scalable business functions, and delivered measurable results across client engagement, compliance, and performance optimization.

As a former Senior Manager at New Way Healthcare, Mangal oversaw full-spectrum RCM operations—driving efficiency, accuracy, and sustained revenue growth. His leadership was pivotal in launching new verticals, mentoring top-tier talent, and cultivating long-term client partnerships rooted in trust and operational transparency.

Now serving as Head of Operations at Grelin Health, Mangal leads the company's billing and coding functions, bringing his deep domain knowledge and executional rigor to Grelin's next-generation RCM solutions. His customer-first mindset, combined with a keen analytical approach, empowers him to align people, processes, and technology to achieve operational excellence at scale. Mangal thrives in dynamic, innovation-led environments, making him an invaluable force in driving Grelin Health's mission to transform healthcare billing through smart, scalable systems.

Arun Kumar R is a results-driven healthcare operations leader and Revenue Cycle Management (RCM) expert with a proven track record of optimizing processes, improving collections, and elevating client service delivery. With extensive experience leading high-performing teams at Calpion Software Technologies, Arun has consistently delivered measurable business outcomes through structured leadership, data-driven decision-making, and platform integrations across Athena PM, Open Dental, and Waystar.

Arun has successfully spearheaded initiatives such as a 22% boost in monthly collections through workflow redesign, a 30% improvement in claims accuracy via system integration, and a 35% rise in productivity through custom training programs. His deep commitment to quality, compliance, and operational scalability has earned him the trust of clients and colleagues alike.

Now joining Grelin Health as the Founding Engineer, Arun will lead the development of Grelin's autonomous billing and root cause analysis (RCA) system. With his rare blend of subject matter expertise and operational insight, he will play a pivotal role in building the company's technology stack and shaping the future of AI-driven healthcare billing.