Lee S. Rusakow, M.D. and Margarita Guarin, M.D. are both Board certified Pediatric Pulmonologists who together have more than 25 years of experience caring for children with all kinds of respiratory problems, from the mildest to the most severe (life-threatening). They both come from academic medicine backgrounds, but decided to go into private practice in order to do what they value most, deliver direct patient care on a daily basis.