LANS, DAVID DO is categorized under PHYSICIANS & SURGEONS specializing in RHEUMATOLOGY and located at 2900 Westchester Ave. Ste. 3 in or near the Purchase, NY area. Find additional information including website, e-mail, map, and directions - newyorkbioidenticalhormones.com. Find additional PHYSICIANS & SURGEONS at MedicalYP.com ®.