Lillian Elisa Nieves

What has contributed most to my success is a leadership approach grounded in collaboration. I believe that meaningful progress happens when teams and key stakeholders are engaged early, aligned on the vision, and invested in the outcome. Securing buy‑in is essential — whether you’re driving a new initiative or improving an existing process — and that only happens when people feel included, respected, and part of the solution.

Networking and building relationships across departments has been equally important. Healthcare is interconnected, and the best outcomes come from understanding how each function contributes to the whole. I approach every partnership with humility, recognizing that there is always more to learn. Expanding my skills, broadening my perspective, and seeking opportunities to work alongside others with shared goals has shaped me into a more effective and empathetic leader.

Over the past 20+ years, I’ve been deliberate and methodical in building a diverse operational foundation. I intentionally sought roles across patient access, operations, finance, and revenue cycle because I believe leaders should understand the full ecosystem they’re responsible for. Limiting yourself to one type of role limits your growth — and limits your ability to lead with insight, credibility, and strategic depth.

This philosophy continues to guide how I lead teams, build partnerships, and drive organizational outcomes.

One of the greatest pieces of advice that has shaped my career came from a former supervisor — now a vice president at Mount Sinai — who told me: “Prepare for the job you want, not the one you have.” That guidance has stayed with me. It’s a reminder to always position yourself for the next level, stay open to learning, and humble yourself enough to recognize what you don’t yet know.

Too often, people talk themselves out of opportunities because they don’t check every box on a job description. I’ve learned that you should never second‑guess your potential. Believe in yourself. If you don’t have a skill yet, you can build it. If you don’t have the experience, you can gain it. But don’t let self‑doubt close the door on a role you’re capable of growing into.

Another lesson that deeply influenced me came when that same supervisor took a chance on me for a contact center leadership role — an area I had never worked in. She told me, “I can teach you the technical skills. What I can’t teach is leadership — and you already have that.” Together, we grew that department from 60 employees to about 120, proving that when someone believes in your leadership, you rise to the challenge.

These experiences reinforced what I now practice and teach:

• Collaboration matters. Engage stakeholders early and build buy‑in.
• Relationships matter. Network with the teams you rely on and those who rely on you.
• Humility matters. There is always more to learn.
• Growth matters. Don’t pigeonhole yourself — diversify your experience so you can lead with depth and perspective.

Over the past 20+ years, I’ve been intentional and methodical in building a broad operational foundation. I sought out diverse roles on purpose — across access, operations, finance, and revenue cycle — because I believe leaders should understand the full ecosystem they’re responsible for. Limiting yourself limits your growth. This mindset has shaped my career, my leadership style, and the way I mentor others: stay curious, stay open, and always prepare for the future you want.

Coming into this field, you have to embrace the reality that healthcare is constantly evolving. The environment shifts quickly — policies change, payer requirements adjust, technology advances, and patient expectations grow. To succeed, you must be adaptable, flexible, and willing to step back, reassess, and give yourself the space to learn.

It’s essential to stay educated and well‑versed in the policies, regulations, and operational frameworks that guide effective patient care. Just as clinicians remain current on clinical evidence to make accurate diagnoses and treatment plans, administrative leaders must stay informed about insurance structures, reimbursement models, and the operational dynamics that shape the patient experience. Our knowledge directly influences how well we support patients, advocate for them, and help them navigate the financial side of care.

Understanding how insurance plans work, how benefits are designed, and how to partner with patients to make care feel accessible and affordable is a critical part of modern healthcare leadership. When administrative leaders stay informed and engaged, we create systems that are not only operationally sound but also compassionate and patient‑centered.

This mindset — staying curious, staying current, and staying flexible — is what allows leaders to thrive in an ever‑changing healthcare landscape.

Healthcare organizations today face mounting pressures across cost, workforce, operations, and equity. Rising out‑of‑pocket expenses and drug prices are making care increasingly unaffordable, leading many patients to delay or skip treatment. At the same time, severe staffing shortages and burnout among nurses and clinical teams are straining capacity and driving turnover.

Operationally, administrative burdens — including payer denials and complex prior authorization requirements — continue to slow care delivery and disrupt revenue cycle performance. Fragmented IT systems further compound inefficiencies, limiting coordination across the continuum of care.

Cybersecurity threats are escalating, with hospitals becoming prime targets for ransomware attacks that jeopardize patient data and operational stability. These challenges are intensified by persistent health inequities, an aging population that requires more complex care, and a growing mental health crisis that far outpaces available resources.

Together, these forces create a healthcare environment that demands adaptability, innovation, and strong cross‑functional leadership to ensure sustainable, patient‑centered care.

I lead with integrity because it is the foundation of trust, collaboration, and meaningful relationships—both professionally and personally. I believe in supporting others, investing in their development, and creating environments where people feel empowered to grow. Self‑awareness plays a central role in my leadership; I’m committed to recognizing my own areas of opportunity, staying open to learning, and seeking out the skills and insights needed to be effective in every role I take on. I also believe in the importance of self‑care and understanding your own worth, acknowledging that no one can do everything and that doing your best is enough. Over the past 20+ years, I’ve been deliberate and methodical in building a diverse background across patient access, operations, finance, and revenue cycle. I pursued this breadth of experience intentionally, knowing that well‑rounded leaders are better equipped to step into executive roles with strong grounding, sound judgment, and a deep understanding of the principles that guide complex healthcare systems.