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Division of Hospitalist Medicine

Hanshaw Pediatric Hospitalist

University Campus Worcester

  • Timothy E. Gibson

    Timothy E. Gibson, MD

    Role: Chief

    Associate Professor of Pediatrics

    Chief, Hanshaw Pediatric Hospitalist Medicine 

    Education: UMass Chan Medical School
    Residency: UMass Memorial Medical Center, Pediatrics
    Clinical Interests: Pediatric care, pediatric sedation

  • Catherine Ezzio

    Catherine Ezzio, MD

    Role: Staff

    Assistant Professor of Pediatrics

    Education: Tufts University School of Medicine
    Residency: Maine Medical Center, Pediatrics
    Fellowship: Helen DeVos Children’s Hospital, Pediatric Hospital Medicine
    Clinical Interest: Asthma, bronchiolitis, fever in newborns

  • Thomas Guggina

    Thomas Guggina, MD

    Role: Staff

    Assistant Professor of Pediatrics

    Director, Pediatric Sedation Program, UMass Memorial Children’s Medical Center

    Education: UMass Chan Medical School
    Residency: Baystate Medical Center, Pediatrics
    Clinical Interests: Care of the hospitalized child, pediatric sedation, newborn medicine, bronchiolitis, global health
    Research Interests: Quality improvement in pediatric sedation, quality improvement in pediatric hospital medicine, mindfulness in medicine

  • Cornelius (Neal) Tyrrell

    Cornelius (Neal) Tyrrell, MD

    Role: Staff

    Associate Professor in Pediatrics

    Inpatient Director, Children's Medical Center

    Chief Quality Officer, Children's Medical Center

    Education: Tufts University School of Medicine
    Residency: UMass Chan Medical School, Pediatrics
    Clinical Interests: Social determinants of health, pain management, trauma, pediatric mental health
    Research interests: Safety and quality improvement

  • Katheryn Wynne

    Katheryn Wynne, MD

    Role: Staff

    Assistant Professor of Pediatrics

    Associate Program Director, Pediatric Residency

    Education: Yale University School of Medicine
    Residency: Massachusetts General Hospital for Children, Pediatrics
    Clinical & Research Interests: Medical education, simulation, quality and safety

55 Lake Ave North
Worcester, MA  01605

Tel: (774) 442-6087

HealthAlliance Campus Leominster

  • Matthew Masiello

    Matthew Masiello, MD, MPH

    Role: Chief

    Professor of Pediatrics

    Director, Pediatric Hospitalist Program- Health Alliance Hospital

    Chair of Pediatrics, Health Alliance Hospital

    Education: Autonomous University of Guadalajara Medical School, Mexico / George Washington University School of Public Health and Health Sciences, MPH / Yale School of Public Health, Climate Change Adaptation Practitioner
    Residency: Bridgeport Hospital, Pediatrics
    Fellowship: Boston Children’s Hospital, Pediatric Critical Care
    Clinical Interests: Family centered rounds, infants with neonatal abstinence syndrome, treatment of Hypoglycemia in the newborn
    Research Interests: Bullying prevention, climate change, health promotion for children with asthma, health promotion and disease prevention in a hospital system, child human rights, war and children, skill evaluation in a critical care & nursery setting

  • Saba Faranaz-Kabir

    Saba Faranaz-Kabir, MD

    Role: Staff

    Assistant Professor of Pediatrics


    Education: St George’s University School of Medicine
    Residency: Einstein Medical Center Philadelphia, Pediatrics
    Clinical & Research Interests: Newborn care, quality improvement

  • Celeste Gagnier

    Celeste Gagnier, MD

    Role: Staff

    Education: St. George’s University
    Residency: University of Arizona, Pediatrics
    Clinical Interests: Neonatal hypoglycemia, newborn care, pediatric respiratory illnesses

  • Thomas Guggina

    Thomas Guggina, MD

    Role: Staff

    Assistant Professor of Pediatrics

    Director, Pediatric Sedation Program, UMass Memorial Children’s Medical Center

    Education: UMass Chan Medical School
    Residency: Baystate Medical Center, Pediatrics
    Clinical Interests: Care of the hospitalized child, pediatric sedation, newborn medicine, bronchiolitis, global health
    Research Interests: Quality improvement in pediatric sedation, quality improvement in pediatric hospital medicine, mindfulness in medicine

  • Ann-Britt K. Martins

    Ann-Britt K. Martins, MD, PhD

    Role: Staff

    Assistant Professor of Pediatrics

    Education: Universitaet Witten / Herdecke Fakultaet fuer Gesundheit
    Residency: Universitaets Klinikium Brandenburg an der Havel Klinikum / UMass Chan Medical School, Pediatrics
    Clinical Interests: Newborn care, pediatric care, neonatal resuscitation, SHINE clinic (Supporting Healthy Infant Neurodevelopmental Experiences), NICU developmental follow up clinic

  • Patricia McQuilkin

    Patricia McQuilkin, MD, MS

    Role: Staff

    Professor of Pediatrics

    Education: UMass Chan Medical School / Morningside Graduate School of Biomedical Sciences, Master’s in Clinical Investigation
    Residency: UMass Chan Medical School, Pediatrics
    Clinical Interests: Underserved populations, newborn medicine, global health
    Research Interests: Malnutrition, malaria, medical education in developing countries

  • Kristine Tingley

    Kristine Tingley, MSN, APRN, CNNP, CPNP-PC

    Role: Staff

    Pediatric Nurse Practitoner

    Education: Northeastern University School of Nursing / University of Alabama School of Nursing, MSN, NNP / Maryville University, Pediatric Nurse Practioner
    Clinical Interests: Community focused neonatal resuscitation education, infants with neonatal abstinence syndrome, infant stabilization at delivery for the Community based pediatric & nursing team
    Research Interests: Safer circumcision protocols in conjunction with MGH pediatric urology

  • Lazaros Xanthopoulos

    Lazaros Xanthopoulos, MD

    Role: Staff

    Assistant Professor

    Education: Boston University Medical School
    Residency: Tufts Medical Center/Floating Hospital for Children, Pediatrics
    Clinical Interests: Neonatal abstinence syndrome, congenital MV
    Research Interests: Neonatal resuscitation program

60 Hospital Road
Leominster, MA 01453

Tel: (978) 466-2000

Pediatric Hospital Medicine