Meet Siddharth Nandyala, an Indian American Prodigy and Tech CEO Using AI to Detect Heart Diseases in Secs

“Age is merely a number; it’s the passion and vision that truly define one’s impact.” These words ring true for Sirish Subash who won America’s Top Young Scientist Challenge in 2024, 10^th grader Deepali, a washerman’s daughter, who earned a US government scholarship, and Pranjali Awasthi who runs an AI startup disrupting Google-dominated online search market. 14-year-old Siddharth Nandyala, an Indian-origin inventor cum entrepreneur in the US, is among the newcomers in the elite club of prodigies. Siddharth has developed an AI-powered app that detects heart disease within seconds, with an accuracy of over 96%.

With cardiovascular disease being one of the biggest lifetakers in the world, Siddharth Nandyala’s CircadiaV app is a breakthrough in science, technology, and healthcare. He invented a simple, easy-to-use, cost-effective solution for saving lives, particularly in economically backward countries and in India’s rural backwaters with little to zero access to a healthcare system. This Indian-American tech prodigy is the founder and CEO of STEM IT.

Based in Dallas, Texas; Siddharth’s immigrant parents are from Anantapur, Andhra Pradesh. His father Mahesh Nandyala moved to the US in 2010 and is a serial entrepreneur with several startups in artificial intelligence. Born in a family that values education and innovation, he has grown up with natural curiosity for technology and its potential to solve real-world problems. Unlike kids of his age, he showed interest in making the right use of gadgets at a very tender age. His tryst with technology began at the age of 7, when his mother, Srilatha, showed him how to code.

Before joining the University of Texas, Dallas for a bachelors degree in Computer Science for Fall 2025, Siddharth earned certifications in artificial intelligence and machine learning from Oracle and ARM, thereby emerging as the world’s youngest AI-certified professional. He was not just doing certifications but chasing solutions. That’s when he started working on the app CircadiaV aiming to make detection of heart diseases easier, faster, and a lot more cost-effective. After all, timely detection may help many lives escape early death.

How Siddharth Nandyala’s CircadiaV app works? It records one’s heartbeats through a smartphone microphone, uses AI to analyse the data, and detects potential cardiac ailments – all in 7 seconds. No lab visits. No heavy machines. No expensive clinical tests. All that the app requires is a smartphone in good condition. CircadiaV has successfully been tested on 15,000 patients in the US and 700 in India during pilot trials.

STEM IT’s CEO Siddharth didn’t stop with just one invention. While working on his app, he came across another issue – prosthetic limbs. Many people who lose their arms in accidents or medical conditions can’t afford artificial limbs because they cost hundreds of thousands of dollars. Siddharth decided to fix that too. He is now developing a brain-controlled prosthetic arm using EEG technology, bringing the cost down to just $300. That’s truly going to be life changing for many.

His transformative and disruptive innovations have already earned him recognitions. He was named Innovator of the Year by the Frisco Chamber of Commerce and received a Certificate of Recognition from the US House of Representatives. His startup STEM IT has garnered national attention, including a featured appearance on “Good Morning America” (broadcast on ABC). In 2014, he was honored with the distinction of delivering a keynote address, at the Global IndiaAI Summit, about his perspectives on the future of artificial intelligence.

At just 14, he has achieved what takes many adults a lifetime. And the best thing? It’s just the beginning for him. Despite being an innovator and an entrepreneur, he is still a growing kid at heart. Chess is his other passion. He admits that chess has played a big role in shaping his ability to think critically and solve problems strategically.

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