Dr. Patrick Yassini serves as the Principal Investigator and Medical Director at Apex Clinical Research, where he brings over 25 years of clinical experience and a strong track record in clinical trial execution. As a dual board-certified physician in family medicine and integrative holistic medicine, Dr. Yassini offers a unique blend of traditional clinical care and forward-thinking research leadership.

Dr. Yassini’s experience spans multiple high-enrolling studies across therapeutic areas such as vaccines, obesity, respiratory, neurology, and dermatology. He is deeply involved in protocol execution, subject safety, and data quality, maintaining a hands-on presence throughout the lifecycle of each study. His clinical acumen, responsiveness to sponsor needs, and ability to engage diverse patient populations have earned Apex recognition as a preferred site among CROs and sponsors.

Widely respected in the clinical research and medical communities, Dr. Yassini is known for his integrity, consistency, and results-driven leadership. He is frequently approached by CROs and sponsors for new study opportunities, a reflection of his exceptional reputation and longstanding industry relationships.

In addition to his research work, Dr. Yassini leads a thriving private medical practice focused on integrative and preventive health. His clinic blends conventional primary care with evidence-based holistic therapies, including bioidentical hormone therapy, IV nutrient support, lifestyle optimization, and regenerative medicine. This unique model not only enhances patient care but also aligns closely with his mission to advance proactive, patient-centered health outcomes—both in practice and through research.