Physician. Real estate operator. EB-1A recognized entrepreneur. A builder who operates across three domains — and has done it at scale for 25+ years.
Connect on LinkedInMedical Doctor. Fellowship at the University of Washington — Harborview Medical Center. Dermatology Fellowship in Hamburg, Germany.
Two decades of development experience. Founder of Piseth City Investment. Lead developer of Borey Arey Ksat ($55M+).
Harvard Business School. Chicago Booth via YPO. Certified leadership coach. International recognition.
Began volunteering during medical school in 1999 and has continued without pause for over two and a half decades. Volunteer work spans rural healthcare missions, free medical clinics, disaster response coordination, and education initiatives across Cambodia and the broader region — driven by a lifelong commitment to serving underserved communities.
Trained and worked with U.S.-based physicians. Conducted extensive volunteer healthcare work across Cambodia alongside physician teams from the United States. Early demonstration of cross-cultural medical leadership and resource-limited execution.
First physician to engage with Dr. Gary Hewett OAM's initiative. Traveled to remote parts of the province to see patients and provide free medical care to communities with no access to physicians.
Leadership and executive education platform in Cambodia. Trains CEOs and senior executives in practical execution and transformational leadership.
Built a network of 4,000+ doctors, nurses, and medical students delivering care to 200,000+ patients across Cambodia. Proof of large-scale coordination capability.
Founder. Large-scale real estate development including the $55M+ Borey Arey Ksat project. Multiple Cambodia Property Awards.
Served as YPO Cambodia Chapter Chair for the 2020–2021 term, leading the chapter during the COVID-19 period. Peer recognition among global chief executives within the Young Presidents' Organization.
Keynote speaker at National BNI Cambodia. Shared insights on entrepreneurship and business scaling at one of the world's largest networking organizations.
Selected as Judge for the International Business Excellence Awards. Evaluating high-performing enterprises globally.
Building the supportive living platform at the intersection of housing, aging, and community coordination. The convergence of 25+ years.
Homira is the most personal project, but not the only one. These are the parallel ventures and platforms Dr. SIM continues to build and lead.
A platform dedicated to education, leadership, and capability-building. Cofounded by Dr. SIM as part of a broader commitment to strengthening institutions and leaders.
Personal site and author platform. Home to Dr. SIM's writing, speaking engagements, leadership reflections, and the Dr. CarePreneur trilogy on aging and family caregiving.
Homira is not a first attempt. Dr. SIM continues to lead two active operating platforms across real estate and leadership — and has built and exited others — demonstrating the cross-sector integration capability that Homira requires.
Large-scale real estate development including the flagship Borey Arey Ksat project — $55M+ mixed-use community development recognized by multiple Cambodia Property Awards.
Leadership and executive education platform. Trains CEOs and senior executives in practical execution and transformational leadership. Co-founded 2011 and still actively involved.
Past Ventures — Earlier operating platforms include YAK Capital (investment and technology) and VR Legend PLC (event platforms and brand ecosystems). Both reflect Dr. SIM's track record of building and exiting platforms across sectors.
Different sectors, different scales, different stakeholders — one operator with a consistent record of building durable institutions.
Dr. SIM's work in real estate development and operating leadership has been profiled by independent business media.
Before building Homira, Dr. SIM spent years writing about aging, family caregiving, and the realities of how care actually unfolds. The three books below — published under the Dr. CarePreneur pen name — are the foundation of the thinking that became Homira.
How to Prepare for In-Home Care for Aging Parents Before It Is Too Late
The planning years. What families should be doing before a crisis forces a decision.
What Really Happens When Care Begins
The crisis moment. What families face when independence ends and care becomes necessary.
Healing, Legacy, and How Families Find Peace After Crisis
The aftermath. What families need long after the immediate crisis to rebuild and find meaning.
Homira is not a market opportunity Dr. SIM discovered. It is a domain he has been thinking about, writing about, and building toward for years.
For 25 years across medicine, real estate, and humanitarian service, I have spent my life close to people in difficult moments. I've seen what it looks like when a system fails the people who need it most. And I've seen what it looks like when someone shows up — present, patient, and prepared.
What I see now is an entire generation of seniors falling into a gap nobody is filling. They are placed into facilities far too early — losing their independence the moment they walk through the door. They are left alone in apartments where no one knows their name. They are abandoned by busy adult children, or quietly forgotten by families who never meant to forget. Intelligent, capable, dignified people are fading in silence — not because they cannot live independently, but because no one has built housing that lets them keep their independence and their connection at the same time.
A standard apartment offers no community. A facility takes away independence. Between them is a silent space where millions of active seniors lose connection, lose purpose, and lose themselves — long before they should.
Homira is built for that gap. Built on 25 years of seeing how care should feel. Built on the conviction that no senior should have to choose between independence and being known. Built because someone has to.
I couldn't unsee it. So I'm building the solution.
If something on this page resonated with you — whether you're a property owner, a partner, a family member, or someone who simply cares about how we age — I'd welcome a conversation.
Connect with Dr. SIM on LinkedInlinkedin.com/in/pisethsim