With over 40 years of experience, David Lans, D.O. is a leading authority in rheumatology and integrative medicine.
As the Chief of Rheumatology at New York-Presbyterian Westchester Hospital and a Clinical Assistant Professor at New York Medical College, Dr. Lans not only leads in clinical practice but also shapes the future of medicine through his role as an educator. His dedication to personalized and preventive healthcare sets him apart as a pioneering practitioner in New Rochelle, where he has served the community since 1991 through his integrative approach.
In his private practice, Dr. Lans is celebrated for his innovative use of integrative medicine, a patient-centered approach that seeks to understand and treat the underlying causes of a patient’s condition. This holistic focus is aimed not just at alleviating symptoms but at optimizing overall health and longevity, ensuring that each patient achieves their best possible quality of life.
Beyond his clinical accomplishments, Dr. Lans is deeply committed to his community, holding board positions with the Hudson Valley branches of the Lupus Foundation and the Arthritis Foundation. His leadership in these roles reflects his broader mission to enhance healthcare standards and patient outcomes on both a local and national scale. Choosing Dr. Lans means choosing a leader and advocate in healthcare, committed to advancing both your health and the field of medicine.
Dr. Lans in the Media

Dr. Lans is incredibly knowledgeable and caring. He always takes the time to listen to my concerns and provides thoughtful solutions.
I’ve been a patient for over five years and the improvement in my health is remarkable. Dr. Lans and his team are simply the best.
Excellent experience with Dr. Lans. His integrative approach has made a significant difference in my quality of life.

Education & Training
Des Moines University
Doctor of Osteopathic Medicine
SUNY Downstate Health Sciences University
Residency, Internal Medicine, Chief Medical Resident
Tufts University School of Medicine
Fellowship, Allergy and Immunology
The Hospital for Special Surgery
Fellowship, Rheumatology
Certifications
American Board of Internal Medicine
Certified in Internal Medicine
American Board of Internal Medicine
Certified in Rheumatology
American Board of Allergy and Immunology
Certified in Allergy and Immunology
American Board of Anti-Aging and Regenerative Medicine
Certified in Anti-Aging and Regenerative Medicine
Dr. David Lan’s Specialty Services
- Integrative Rheumatology and the Management of Autoimmune Disorders
- Healthspan Optimization and Preventive Medicine
- Peptide Therapeutics and Natural Medicines
- Bioidentical Hormone Therapy and IV Nutrition
Professional Memberships
The American Academy of Anti-Aging Medicine (A4M)
Fellowship, Peptide Therapy
The American Academy of Anti-Aging Medicine (A4M)
Fellowship, Stem Cell Therapy
The American Academy of Anti-Aging Medicine (A4M)
Fellowship, Anti-Aging and Regenerative Medicine
American Academy of Physicians
Fellowship
New York-Presbyterian Westchester Hospital Center
Chief of Rheumatology
New York Medical College
Clinical Assistant Professor of Medicine
