Physician Founded. Physician Owned. Physician Led.
IES was created to be a safe haven for emergency medicine physician groups to allow physician leaders to create the best places to give and receive care. We have taken these principles and applied them to other physician specialties, creating a high-performing elite organizational culture.
A Movement, Not A Model.
We believe a core service we can provide our hospital partners is equipping the hospital with high-quality physician leaders. We focus on intrinsic character and offer continued opportunities to develop leadership skills. Our investment in physician leaders helps both the organizations we serve and our clinicians’ career satisfaction, creating a true culture of physician leadership.
Physician Leadership

Nick Zenarosa, MD, FACEP
Founder & Chairman
IES is and will always seek to partner with our hospitals to become the best place to give and receive care.

Amy Ho, MD, MPH, FACEP
Chief of Systems & Informatics
We believe in the power of data and analytics to drive our performance and ensure we are the best partners for our clients.

Chet Schrader, MD, MBA, FACEP
Chief of Clinical Operations
We believe there’s a sustainable, physician-centric model that does not answer to conflicting business interests.

Elizabeth Fagan, MD, FAEMS, FACEP
Chief of Clinical Education & EMS
Our investment in education empowers and nurtures a culture of continuous learning and symbolizes our unwavering commitment to excellence.

Robert M. Risch, MD, MBA, FACEP
Chief of Quality & Implementation
IES fosters a culture of excellence, empowering physicians to focus on delivering exceptional care.
Quality Matters
We foster and care about evidence-based outcomes because we know that we can only manage what we can measure. Therefore, we measure outcomes and foster high-performing teams to care about them.
Guiding Principles
Fostering our company culture is an exciting journey and vital to our purpose. By cultivating an inclusive and equitable environment, we empower our employees and customers to achieve extraordinary things. Our strength lies in our collaboration, turning our vision into reality. We believe we can do this through CADES, our Guiding Principles.
Credible
I will be capable of fulfilling my responsibilities, be accountable for my outcomes, and continuously seek to improve my abilities.
Authentic
I will speak in an honest, caring manner, with a desire to improve our service, our team, and ourselves.
Dependable
I will do what I say I will do when I say I will do it
Empathetic
I will seek understanding by seeing the world through another’s view.
Supportive
I will serve our healthcare partners with my work.
“We believe there’s a sustainable, physician-centric model that does not answer to conflicting business interests.”
— Chet Schrader, MD, MBA, FACEP | Chief of Clinical Operations
Our Footprint
We improve every hour, every day.
Visits Per Year
2,200,000
Clinicians
1,800+
Outside Capital
0

