MD, PhD, MBA
Dr. David Greene, MD, PhD, MBA, stands at the forefront of regenerative medicine and healthcare innovation, blending clinical expertise with entrepreneurial vision. As the founder and CEO of R3 Stem Cell and US Lead Network, Dr. Greene has dedicated his career to advancing patient care and empowering medical practices through advanced therapies and digital marketing excellence.
A residency and fellowship-trained orthopedic surgeon, Dr. Greene began his journey in medicine with a deep commitment to helping others. After years in clinical practice, he recognized the transformative potential of regenerative therapies and the urgent need for better patient access and education. This insight led him to establish R3 Stem Cell, now a global leader in non-surgical treatment options using stem cell and PRP therapy. Under his leadership, R3 Stem Cell has performed over 26,000 procedures across more than 45 international clinics, offering hope and healing to patients worldwide.
Dr. Greene’s entrepreneurial spirit didn’t stop at clinical innovation. He also founded US Lead Network, a healthcare internet marketing company that leverages artificial intelligence to help medical and dental practices grow their patient base efficiently and ethically. His two books on healthcare internet marketing have become essential reading for providers seeking to navigate the complexities of digital patient acquisition. Recognized as a Top 20 Expert Author by Ezines.com – ranking #15 out of over 470,000 authors and #1 in Pain Management – Dr. Greene’s thought leadership has shaped the way healthcare professionals connect with patients online.
A defining moment in Dr. Greene’s career was his decision to leave clinical practice and focus entirely on innovation and education. “I’ve never been a fan of just settling for the status quo. Innovation is a cornerstone of what makes America great,” he reflects. This philosophy has driven R3 Stem Cell’s mission to provide affordable, high-quality regenerative care and to demystify stem cell therapies through comprehensive training courses and educational content for both providers and patients.
Dr. Greene’s work has garnered international recognition, including a feature on the cover of Corporate Vision magazine, where his commitment to affordable, accessible regenerative therapies was spotlighted. His impact extends beyond business metrics – he is known for his compassionate approach, always prioritizing patient education and ethical practice.
Outside of his professional life, Dr. Greene is inspired by the words of Maya Angelou: “My mission in life is not merely to survive, but to thrive; and to do so with some passion, some compassion, some humor, and some style”. He brings this ethos to his daily work, fostering a culture of innovation, empathy, and continuous learning.
When he’s not leading global healthcare initiatives, Dr. Greene enjoys sharing insights on social media, connecting with colleagues, and pursuing personal interests that keep him grounded and inspired.
Dr. David Greene’s journey is a testament to the power of combining clinical skill, business acumen, and a heartfelt commitment to making a difference – one patient, one practice, and one innovation at a time.
All Posts
For women diagnosed with Premature Ovarian Failure (POF)—also clinically known as Primary Ovarian Insufficiency (POI)—the physical and emotional toll of reproductive decline before age 40 can be overwhelming. Defined by the premature loss of normal ovarian function, POF leads to a sharp decline in estrogen
Duchenne Muscular Dystrophy (DMD) is a progressive X-linked genetic disorder primarily affecting males, occurring in approximately 1 in 3,500 to 5,000 live male births worldwide. DMD is characterized by the absence or severe deficiency of dystrophin, an essential structural protein that acts as an anchor
Chronic respiratory conditions—such as Chronic Obstructive Pulmonary Disease (COPD), pulmonary fibrosis, post-viral residual lung dysfunction, and severe hyper-reactive airway disorders—present persistent challenges for patients seeking long-term relief. Traditional management focuses primarily on symptom control, bronchodilators, supplemental oxygen, and corticosteroids to slow disease progression. In recent
A ruptured or severely herniated intervertebral disc in the lumbar spine can cause excruciating, life-altering pain. For many patients, the condition degrades basic physical liberties—such as playing with children, lifting routine objects, or remaining active in the gym. When conservative modalities like physical therapy and
Patients researching stem cell therapy for kidney disease often come across two very different delivery methods: a simple intravenous (IV) infusion, similar to receiving fluids through an arm vein, and a more invasive procedure in which stem cells are injected directly into the kidney’s blood
If you’ve spent any time researching regenerative medicine, you’ve likely come across bold claims that mesenchymal stem cells (MSCs) “boost” the immune system. It’s an appealing idea, especially for people exploring anti-aging therapies or looking for ways to support their body’s natural defenses. But the
A glioblastoma diagnosis brings patients and families to a crossroads almost immediately: standard treatment — surgery, radiation, and chemotherapy — offers a real but often limited benefit, and many people start researching what else exists. Natural killer (NK) cell therapy is one of the immunotherapy
Receiving stem cell therapy in Mexico is a fantastic option for individuals. One of the reasons is the cost is typically lower than that in the USA. There can potentially be several other benefits as well, but patients need to be careful in their clinic
If you or a loved one is researching cellular immunotherapy options for cancer, you may have come across the term NK cell therapy — a treatment approach that uses natural killer cells, either from the patient or from a healthy donor, to help the immune
If a close relative has had cancer, a genetic test showing a hereditary risk marker can be unsettling news. For many patients, that uncertainty leads to a natural question: is there anything proactive I can do beyond waiting and watching? One option that comes up
