Mass Lung & Allergy. Critical Care Medicine, Nursing (Nurse Practitioner) • 9 Providers. 100 Hospital Rd Ste 2a, Leominster MA, 1453. Make an Appointment. Show Phone Number. Telehealth services available. Mass Lung & Allergy is a medical group practice located in Leominster, MA that specializes in Critical Care Medicine and Nursing (Nurse ....