Appointments and Second Opinions

Speak with one of our New Patient Coordinators to schedule an appointment, refer a patient or request a second opinion. In urgent cases, we can typically see new patients within 24 hours.

Contact us
Find Clinical Trials

We sponsor and collaborate on clinical trials that break new ground in pediatric cancer and blood disorder treatment. 

Search Pediatric Cancer and Blood Disorder Clinical Trials
Our Affiliations
HMS Affiliate

Dana-Farber/Boston Children's is a teaching affiliate of Harvard Medical School.

Our Affiliations

Monica Hollowell, MD

  • Instructor in Pathology, Harvard Medical School

Office Phone

  • 617-355-7431


  • 617-730-0207


Treatment Centers


Clinical Interests

Cytopathology, Pediatric pathology



Board Certifications

  • Anatomic and Clinical Pathology
  • Cytopathology
  • Pediatric Pathology


  • Boston Children's Hospital, Pediatric Pathology
  • Brigham and Women's Hospital, Cytopathology


  • Baystate Medical Center, Anatomic and Clinical Pathology

Medical School

  • Eastern Virginia Medical School