About Us

Integrative Rheumatology of Westchester

Dr. David Lans

Dr. Lans has been practicing medicine since 1985 and has been in private practice at our New Rochelle location since 1991. He has a great deal of experience as a clinician and educator and is a strong advocate of personalized medicine and preventive health care. Doctor Lans considers himself an “integrative rheumatologist” Doctor Lans considers himself an “integrative rheumatologist” a term he applies to his extensive rheumatology experiencee with the patient-specific approach of functional medicine to address hormone imbalance, thyroid issues, weight loss, sexual wellness, and autoimmune diseases including M.S., Lyme’s, Leaky Gut Syndrome, Diabetes and Chronic Fatigue Syndrome.

Dr. Lans graduated from Brandeis University and completed Medical School at Des Moines University College of Osteopathic Medicine and Surgery. He then completed a Medical Residency at SUNY Downstate Medical Center, where he served as Chief Medical Resident. He completed Fellowship training in Allergy and Immunology at Tufts University, followed by a Rheumatology Fellowship at The Hospital for Special Surgery in New York. He is an Assistant Clinical Professor of Medicine at New York Medical College and the Chief of Rheumatology at New York Presbyterian /Lawrence Hospital in Bronxville, New York. Dr. Lans is Board certified in Internal Medicine, Allergy and Immunology, and Rheumatology and is a Fellow of the American College of Physicians.

In My Own Words

Let me tell you a little about myself, my experience, my approach to patients, and my philosophy about health care.

For the initial phase of my medical training, my approach was conventional. I have substantial training in orthodox medicine, having taken residencies and fellowships for 9 years after graduating medical school in 1981. This provided me with a great base from which to develop my own clinical instincts. Indeed, my first position, after completing my formal training was on the faculty of Albert Einstein Medical School, where I engaged in clinical practice, teaching medical students and postgraduate trainees, and conducting research. Within a few years, I chose to go into private practice, while maintaining a voluntary faculty position, to allow for greater flexibility in approaching patient care.

As an Osteopathic physician, my training, though conventional, also exposed me to holistic medicine and an open-minded view of “alternative” healing strategies. As such, I have always sought to learn from other healing traditions and to incorporate these treatment strategies in order to best help my patients.

As my experience grew, I became interested in integrative medicine: combining a traditional approach with functional medicine. While orthodox medicine focuses on the diagnosis and treatment of disease, functional medicine is patient-centered and emphasizes an understanding of the underlying causes of physiologic imbalance in the individual patient. Functional medicine is holistic and considers the optimum functionality of all systems of the body. It incorporates a variety of methods and therapies for supporting those systems and keeping them healthy. These include nutrition and botanical therapies, lifestyle approaches and stress reduction programs. The idea behind functional medicine is that one can not only prevent disease and troubling health conditions but in many cases, reverse them.

Furthermore, to be an effective and thoughtful physician, it is important to approach patients personally and individually. This requires careful listening, thorough evaluations and time. Unfortunately, the way medicine is typically practiced today, these approaches have gone by the wayside. Often, patients feel rushed and without the time to communicate effectively with their doctor or even ask questions. I believe that personalized medicine is extremely important. That means viewing each person as a unique individual, whose physiology results from a combination of inherited and environmental influences.

In addition to  Board-Certification in  Internal Medicine, Allergy and Immunology, and Rheumatology, I am also Fellowship trained and Board certified by the American Academy of Anti-Aging Medicine, where I  have also completed  a Stem Cell Fellowship.

Board Certifications and Associations:

  • Board Certified in Internal Medicine
  • Board Certified in Rheumatology
  • Board Certified in Allergy and Immunology
  • Fellow of the American Academy for Anti-Aging Medicine
  • Fellowship Trained and Board Certified in Anti-Aging and Regenerative Medicine

Dr. Lans’ eMediHealth Profile

What Our Patients Say

  • I have relied upon the medical skills of Dr David Lans since 2013 after a long search to find someone who could help me with my immune system problems.  Dr Lans offers a warm and inviting environment where you can unhurriedly discuss your problems and participate in proposed solutions.  I recommend him highly to my friends
    -J. Karten
  • I recently received excellent care from Dr. Lans. Not only did he diagnose my problem right away and correct it but I always felt he was very interested in getting me better. His office staff was very professional and accommodating as well.
    Joan B. New Rochelle, NY
  • Staff was friendly no wait time Dr. Lans clear and concise while explaining what he was doing, painless quick made for a pleasant office visit.  Would recommend to friends and family.
    Lorris R.
  • Dr. Lans is indeed an amazing Doctor. On my first visit, he was kind caring and patient. He answered all my questions and asked me questions about my problems and how we could fix them. He didn't rush through my visit and was very thorough. Dr. Lans is a rare find. He is a very warm and genuine Doctor. I would give him 10 stars if I could! I wish I could still see him as my Doctor but he no longer accepts my insurance. Dr. Lans is Wonderful, Amazing, Caring, and Intelligent! Just a Great Doctor indeed!
    Roxi M.
  • I can’t say enough about how wonderful and professional Dr. David Lans is. I have been having trouble with my ankle since last November. In that time I have had three MRI’s and been to four different doctors. The last option was to have surgery. I was referred to Dr. Lans and traveled to New York to have a stem cell procedure done. Dr. Lans explained to me every step of the way what was going to happen and what I would be feeling and helped me to relax since I was a little nervous as to what “stem cell” was. After the treatment, it took a couple of weeks to really start feeling better. It has now been three months and I am NOT in pain anymore. I am the happiest that I didn’t do the surgery and went with Dr. Lans. It will still take a little more time for my ankle to be back to normal but I am well on my way. THANK YOU DR. LANS
    Anna M.
  • Across the 16+ years during which Dr. Lans provided primary care as well as specific treatments for me, I came to understand, respect and appreciate what I am certain is only a small part of the considerable breadth and scope he brings to the task. Where medicine is a blend of science and art, he brings the best in command of broad knowledge and distills practical wisdom and insight from clinical experience, and from my observation, his thinking and judgment are not bound by convention or other potentially limiting factors.
    Therese B.
  • Dr.Lans is one of the Best Doctors I have seen so far. He is very caring, and thorough, spent a lot of time with me answering my questions, and helping me to understand why some things are happening to my body. He is truly a rare Doctor to find. Great, Wonderful, and an Expertise in his field.
    Vitals.com Review
  • I have been a patient of Dr lans for over 20 years. He's a great diagnostician & very professional. He's always very pleasant & takes a lot of time with me. Frankly, he's the best!
    Vitals.com Review
  • Dr. Lans has been my PCP for many years. He is thoughtful, up to date, very smart, concerned, explains everything, spends as much time with you as you need, has a patient portal for individual information or contact. His staff is great. If I could give more stars, I would.
    Vitals.com Review
  • The Best.  Have been a patient for over 12 years.
    Vitals.com Review
  • It is rare to find a doctor these days who actually sits down and talks to you. What a refreshing experience!!
    Vitals.com Review
  • I went for years with undiagnosed symptoms and within two visits Dr. Lans had diagnosed the problem! Although having a chronic illness has a huge downside, he is open to trying alternative therapies and he is extremely respectful of every patient he sees. If you no longer trust Doctors or if you have been seen by abusive caregivers, give Dr. Lans a chance. He is the only reason I am as well as I am today.
    Vitals.com Review