About Us

What is Propeller Health?

Propeller Health TeamPropeller is the leading mobile platform for respiratory health management. Through sensors, mobile apps and services, Propeller helps reduce the cost of care while delivering better quality of life for individuals with chronic respiratory disease. Backed by The Social+Capital Partnership, California HealthCare Foundation and other investors, Propeller Health is now working with organizations like Dignity Health, Wyckoff Heights Medical Center, Amerigroup Florida and the City of Louisville. Company recognition includes TEDMED Innovation Showcase, White House Champion of Change and Bluetooth Breakthrough Product awards. The system has been featured in The Economist, Washington Post, Fast Company, Wired and Scientific American.


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Dr. Jim Golden, Chief Management Scientist, Partner, Global Healthcare Data Analytics Group, Accenture
Dr. David Mannino, MD, Professor and Chair, Department of Preventive Medicine and Environment, University of Kentucky
Michelle Snyder, Chief Marketing Officer, Welltok

Propeller crew

Our business is growing quickly and we’re expanding our team. We’d love to have you join us. Please check out our list of current openings.

David Van Sickle

David Van Sickle

David was formerly an Epidemic Intelligence Service Officer with the Centers for Disease Control and Prevention, and a Robert Wood Johnson Foundation Health and Society Scholar at the University of Wisconsin School of Medicine and Public Health. He writes about asthma epidemiology, medical anthropology, and global chronic respiratory disease at davidvansickle.com.


Mark Gehring

Mark has previously co-founded and served as CEO of three companies: Geometrics, developer of a 3D radiation treatment planning system that has been the market leader since 1996 (now marketed by Philips); UltraVisual, a medical imaging company which merged with Emageon, reached $100 million in sales, and went public in 2005; and Sharendipity, a software development environment for non-programmers.


Greg Tracy

Greg is a technology enthusiast who excels at applying technology in new domains with the potential for large scale. He balances the big vision of how software technology can improve our lives with being an advocate for customers still living in the present. He has a Masters in Computer Science from the University of Wisconsin – Madison. He previously ran the engineering team at Emageon, a medical imaging company. You can also follow him on Twitter at @gregtracy.


Erica St. Angel

Erica is passionate about tech marketing that leverages marketing technology. Her unique background blends 20 years of corporate, public information and political campaigns. She also served as policy advisor on health, education and commerce in the administrations of WI Governor Tommy Thompson and IL Governor Jim Edgar. Her work has earned both industry and marketing awards, with an emphasis on demand generation, content marketing and community-building. She’s also into architecture, siberian huskies and results.


Erika O’Donohoe

A Madison Wisconsin native, Erika has been working one on one with customers in the medical software space for over a decade. A graduate of the University of Wisconsin, Madison for both her Undergraduate degree and MBA she enjoys making her mark in early stage companies. Her real passion in life is starting and abandoning multitudes of Pinterest projects.


Kevin Houlihan

With a BS in Mechanical Engineering and an MBA, both from the University of Wisconsin – Madison, Kevin has spent years designing and building technical software. He is passionate about the usability and design of software and that user experience is key to the effectiveness of software solutions. Outside of work, Kevin loves competitive alpine ski racing and has been involved with coaching and coordinating college racing and the UW Alpine Team for a decade.

Eric Hoffman

Eric Hoffman

Eric tries real hard to keep one step ahead of the “young whipper snappers” he helps train as an instructor at UW Electrical Engineering Dept. With 10 years at Intel, 7 at ZMDI, and 5 as an independent consultant & instructor at the UW, Eric definitely has a mastery of obsolete technologies. He spends many of his evenings in his basement laboratory building prototypes of what should be the “next big thing”.

John Kalmi Propeller Health

John Kalmi

John is a recent University of Wisconsin-Madison graduate where he majored in Computer Engineering. He is passionate about making mobile software easy to use and brings that enthusiasm to the Propeller Health mobile apps. Outside of work, he enjoys running, reading, and organizing Taco Tuesdays.
Meredith Barrett

Meredith Barrett

Meredith Barrett is currently a Robert Wood Johnson Foundation Health & Society Scholar at the University of California Berkeley School of Public Health and UC San Francisco Center for Health and Community. She is collaborating with Propeller Health to study the environmental drivers of asthma. She completed her PhD in Ecology at Duke University, where she was a National Science Foundation Graduate Research Fellow.

Olivier Humblet

Olivier Humblet

Olivier Humblet is a data scientist who is passionate about using technology and Big Data to improve health. He was a Robert Wood Johnson Foundation Health & Society Scholar at the University of California Berkeley School of Public Health and UC San Francisco Center for Health and Community, and completed his doctorate in Epidemiology and Environmental Health at the Harvard School of Public Health. His hobbies include cooking and backcountry skiing.

Taylor Mahan-Rudolph

Taylor is a recent graduate from the University of Wisconsin-Madison where she studied Art History and European Studies. With a diverse background in museum work, publishing and radio, she now works in Quality and Regulatory Affairs at Propeller Health. In her free time, Taylor enjoys looking at art, biking and traveling as much as possible.


Tahiya Alam

Tahiya is a recent graduate of the University of Wisconsin-Madison. Her undergraduate degree was in Biology with a certificate in Global Health. Tahiya has done philanthropy work with the homeless community and Red Cross in Madison as well as field work on children’s health in Bangladesh. She loves reading books and watching foreign dramas. Tahiya is currently part of our Implementation team at Propeller Health.


Ruby Valadez Propeller Health

Ruby Valadez

Ruby is a recent graduate from the University of Wisconsin – Madison with a double major in Psychology and Neurobiology. With a diverse background in neurological research, wildlife conservancy, patient care experience, and Spanish fluency, Ruby now works with the Implementation team for Propeller Health but enjoys the equally diverse roles she is able to participate in with this growing and exciting company. In her free time, Ruby enjoys creating art, catching up on her reading and the latest movies, and visiting her beautiful baby niece.


Meaghan Wegmann

Meaghan is a recent University of Wisconsin-Madison graduate where she studied Rehabilitation Psychology. With a passion for patient care and improving people’s quality of life, she is excited to be a part of the Propeller Health team and contribute to the rewarding work of achieveing a better understanding and management of asthma. As an administrative assistant, Meaghan’s focus is to keep the day-to-day office life running smoothly. Having grown up near a lake, Meaghan is most at home near the water. She also enjoys bike riding, running and cooking in her spare time.