The University of Maryland Hospital for Children Breathmobile staff have provided care for more than 600 Baltimore area children since 2002. To make an appointment, please call 410-706-4000.


Mary E. Bollinger, DO

Mary E. Bollinger, DO

Professor of Pediatrics, Medical Director of the Breathmobile Program

Nurse Practitioners

Lisa Bell headshot

Lisa Bell, DNP, CPNP, AE-C

Pediatric Nurse Practitioner, Pediatric Allergy & Breathmobile Program, Certified Asthma Educator