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Our People

The Team Behind Nestiva

Our leadership team brings together decades of clinical expertise, operational excellence, and a shared passion for transforming healthcare. Meet the individuals who guide our mission every day.

6Executive Leaders
27+Avg. Experience (yrs)
15+Publications

Leadership & Governance

A multidisciplinary leadership team combining clinical mastery with strategic vision — driving Nestiva toward its next chapter of excellence.

Dr. Eleanor Hartfield — Founder & CEO
MD — Johns Hopkins School of Medicine

Executive Leadership

Dr. Eleanor Hartfield

Founder & Chief Executive Officer

Dr. Eleanor Hartfield founded Nestiva Hospital in 1998 with a vision of making world-class healthcare accessible to all. A graduate of Johns Hopkins School of Medicine, she holds a PhD in Health Systems Management and has led Nestiva through five major expansions. She serves on the board of the American Hospital Association and the World Health Assembly Advisory Council.

Dr. Marcus Chen — Chief Medical Officer
MD — Yale School of Medicine

Medical Affairs

Dr. Marcus Chen

Chief Medical Officer

Dr. Marcus Chen leads Nestiva's clinical strategy and quality assurance programs. A board-certified cardiologist with over 22 years of clinical experience, he oversees all medical departments, physician credentialing, and the hospital's Centre of Excellence programs. Dr. Chen is a published researcher with over 60 peer-reviewed articles in cardiovascular medicine.

Sarah Mitchell — Chief Operating Officer
MBA — Wharton School of Business

Operations

Sarah Mitchell, MBA

Chief Operating Officer

Sarah Mitchell brings 18 years of healthcare operations expertise to Nestiva. Before joining as COO, she led operations for a 500-bed multi-specialty network in California. She spearheaded Nestiva's digital transformation initiative and our award-winning patient experience program, reducing average wait times by 40% over three years.

Dr. Priya Sharma — CNIO
PhD — Nursing Innovation, Stanford

Nursing & Patient Care

Dr. Priya Sharma

Chief Nursing & Innovation Officer

Dr. Priya Sharma leads a team of 2,400 nursing and allied health professionals. With a PhD in Nursing Innovation from Stanford, she has transformed Nestiva's nursing protocols, introduced evidence-based care bundles, and established the Nestiva Nursing Academy — which has trained over 800 nurses since 2019.

James Harrington — Chief Financial Officer
CPA — American Institute of CPAs

Finance

James Harrington, CPA

Chief Financial Officer

James Harrington oversees all financial operations, strategic planning, and capital allocation at Nestiva. His disciplined financial leadership has maintained consistent operating margins while enabling three major capital expansion projects. He is a Certified Public Accountant and holds an MBA from Columbia Business School.

Dr. Aisha Osei — Chief Technology Officer
PhD — Biomedical Informatics, MIT

Digital Health & Technology

Dr. Aisha Osei

Chief Technology Officer

Dr. Aisha Osei leads Nestiva's technology vision — from AI-powered diagnostics to robotic surgery integration and smart hospital infrastructure. She holds a PhD in Biomedical Informatics from MIT and previously led digital health initiatives at Google Health. She was named one of Forbes' 30 Most Influential Women in Healthcare Technology.

Led by Experts, Focused on You

Our leadership team has built a hospital where every patient receives expert, compassionate care. Come experience it.