Billionaire Profile
Joe Kiani
Global Rank
#2817

Image: The White House | Public domain | via Wikimedia Commons

Joe Kiani

CEO, Medical devices
UNITED STATES
Real-Time Net Worth
$1.247B
Estimated based on Medical devices stock value as of March 6, 2026
-0.06% (24h)
Age
61
Source
Medical devices
Industry
Healthcare
Citizenship
UNITED STATES

Biography

Joe Kiani is an Iranian-born American engineer and entrepreneur. He is the founder of Masimo Corporation, a global medical technology company, and Willow Laboratories. Kiani's career is defined by his innovation in medical technology, his dedication to patient safety, and his entrepreneurial spirit. He immigrated to the US at the age of nine and, despite limited English, excelled academically, earning degrees in electrical engineering from San Diego State University. His net worth is estimated to be $368 million as of February 1, 2026. Kiani's wealth stems from his work in medical devices and his stake in Masimo. He is known for his advocacy of healthcare reform, and he served on the President's Council of Advisors on Science and Technology.

Fact Checked
Verified by Editorial Team
Live Data
Updated 3/6/2026

Wealth Over Time

In-Depth Profile

Early Life

Joe Kiani was born in Shiraz, Iran, on September 16, 1964. At age nine, he immigrated to the United States with his family, speaking only a few words of English. Despite this challenge, he excelled in his studies, graduating high school at fifteen. His father was an engineer, and his mother was a nurse.

Education and Early Career

Kiani attended San Diego State University (SDSU), earning bachelor's and master's degrees in electrical engineering by the age of 22. He worked as a CO-OP engineer at Burroughs, which later became Unisys, starting in 1984. Kiani then worked at Bell Industries and Anthem before consulting for Newport Medical Electronics in 1988.

Rise to Success with Masimo

In 1989, Kiani founded Masimo. He is the co-inventor of modern pulse oximetry. His innovation overcame the unreliability of traditional pulse oximetry. Masimo SET® helped reduce false alarms by 95% and improved the reliability of the "fifth vital sign". Kiani led Masimo to become a global leader in medical technology, employing over 8,000 people worldwide. In 2022, Kiani led Masimo to purchase Sound United. In September 2024, Kiani resigned as CEO of Masimo after activist shareholders won a proxy fight.

Key Business Strategies

Kiani focused on developing and manufacturing noninvasive patient monitoring technologies. Masimo's success is attributed to its innovative Masimo SET® pulse oximetry technology, used in hospitals globally. Kiani holds more than 500 patents. He led Masimo's expansion into consumer electronics with the acquisition of Sound United.

Philanthropy

Kiani founded the Patient Safety Movement Foundation in 2012 to reduce preventable hospital deaths. The Masimo Foundation of Ethics, Innovation and Competition in Healthcare has provided support for the Patient Safety Movement Foundation.

Career Milestones

1989

Founded Masimo

Founded medical technology company Masimo.

1995

Developed Masimo SET®

Introduced Masimo SET® pulse oximetry, improving accuracy and reducing false alarms.

2007

Masimo Goes Public

Masimo became a publicly traded company.

2012

Founded the Patient Safety Movement Foundation

Founded a non-profit organization to reduce preventable hospital deaths.

2021

Appointed to PCAST

Appointed by President Joe Biden to the President's Council of Advisors on Science and Technology.

2024

Resigned as Masimo CEO

Resigned as CEO after a shareholder vote.

Philanthropy & Social Impact

Healthcare

Patient Safety Movement Foundation

Undisclosed

Dedicated to reducing preventable hospital deaths.

Business Philosophy & Leadership

Notable Quotes

""Data is king, but action out of kindness is godly.""

Leadership Principles

Focus on Innovation

Drive the development of advanced medical technologies.

Commitment to Patient Safety

Prioritize reducing preventable medical errors.

Advocacy for Healthcare Reform

Champion transparency and collaboration in the healthcare sector.

Controversies & Challenges

2024

Shareholder Dispute

Ousted from Masimo's board after activist shareholders won a proxy fight. Sued by Masimo for alleged conspiracy related to shareholder vote manipulation.