With a unique background spanning family and internal medicine, public health, preventive health, undersea and hyperbaric medicine, and medical research as a physician-scientist, Dr. David Dayya combines clinical expertise with a thoughtful, evidence-based approach focused on each patient's individual goals and long-term well-being.
Throughout his career, Dr. Dayya has been driven by a simple philosophy: The best healthcare is proactive, personal, and built on trust. He partners closely with patients to prevent disease, optimize health, and navigate complex medical concerns with compassion and clinical excellence.
Dr. Dayya earned his medical degree from the University of Medicine and Dentistry of New Jersey, followed by advanced training in family medicine. He later earned both a Master of Public Health and a PhD in biostatistics from the University of Connecticut, providing a strong foundation in population health, clinical research, and data-driven medicine. He is licensed to practice medicine in Connecticut and New York.
In addition to caring for patients, Dr. Dayya has built a distinguished career as an educator and researcher. He serves as an associate clinical professor at Yale School of Medicine, where he teaches and mentors future physicians. He received a national award from the Society of Teachers of Family Medicine in recognition of his contributions to the field. His research spans a wide range of medical specialties, contributing to advances in medical knowledge and clinical care.
He also has received an Acknowledgment of Service from the National Health Service Corps, a federal program within the U.S. Department of Health and Human Services dedicated to improving access to healthcare in underserved communities.
His commitment to public health also led him to respond following the Sept. 11, 2001, attacks, when he organized and ran a makeshift triage center across from ground zero. Over four days, he provided medical care to firefighters and other rescue workers, treating eye irritation, breathing difficulties, burns, and other injuries. His service was featured in the November/December 2001 issue of OFP News in “ACOFP Members Powerful, Proactive Response at Ground Zero.”
Dr. Dayya is nationally recognized for his expertise in undersea and hyperbaric medicine. As a certified scuba diving instructor with the Professional Association of Diving Instructors (PADI) and the National Association of Underwater Instructors (NAUI), as well as a diving medical officer, he has served in leadership roles within the Undersea & Hyperbaric Medical Society, helping advance education and clinical standards in the field.
For more information about Dr. Dayya and his practice, visit the following websites or contact our office with questions.
Meet David Dayya, DO, PhD, MPH
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PhD — University of Connecticut
MPH — University of Connecticut, Biostatistics
Residency — New York Institute of Technology, Saint Barnabas Healthcare System
Internship — University of Medicine & Dentistry of NJ, University Hospital/Union Memorial Hospital
DO — University of Medicine & Dentistry of NJ, Medicine
BA — Rutgers, The State University of NJ, Chemistry
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Medical Examiner of Divers — Diving Medical Advisory Committee (DMAC) Level 1, Undersea & Hyperbaric Medical Society (UHMS)
Physician Training in Diving Medicine — Diving Medical Advisory Committee (DMAC) Level 2, Undersea & Hyperbaric Medical Society (UHMS)
Certified Hyperbaric Technologist — National Board of Diving & Hyperbaric Medical Technology (NBDHMT)
Diving Medical Officer (DMO) — National Oceanic & Atmospheric Administration (NOAA)
Certified Diving Instructor — National Association of Underwater Instructors (NAUI)
Certified Diving Instructor — Professional Association of Diving Instructors
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Dr. David Dayya has built a distinguished career that combines exceptional patient care with a commitment to advancing medical science. His research has focused on evidence-based approaches to wound care, hyperbaric medicine, infectious diseases, respiratory health, environmental toxicology, and chronic disease management.
He also has contributed to collaborative research exploring autism, as highlighted in a 2009 Fordham University article, “Fordham Researchers Partner with Doctors to Uncover Keys to Autism.”
Through peer-reviewed publications and clinical research, he has helped to improved patient care while remaining at the forefront of medical innovation. His dedication to research helps ensure that his patients benefit from the latest scientific knowledge and advances in medicine.
Our Team
Behind every exceptional patient experience is an exceptional team. Our dedicated staff is committed to making every interaction seamless, welcoming, and personalized—from scheduling appointments and coordinating care to answering questions and providing support whenever you need us. We take pride in building lasting relationships and ensuring every interaction is thoughtful, attentive, and centered on your needs.
Our Office
We are proud to be part of the vibrant New Canaan community, known for its strong sense of connection, thoughtful living, and commitment to excellence. We designed our practice to reflect those same values, creating a welcoming, comfortable environment where patients feel known, cared for, and at home. Being part of this community is a privilege, and we are honored to provide personalized, relationship-based care to individuals and families throughout this area and beyond.
