Skip to main content

Where I Provide Care

Primary Office
100 Campus DR STE 107
Scarborough, ME  04074
Phone: 207-396-7565
Fax: 207-396-7577
Map & Directions
25A June ST STE 011
Sanford, ME  04073
Phone: 207-282-5509
Fax: 207-284-3543
Map & Directions
Office Hours
8:00 am - 5:00 pm
Maine Medical Center - Portland

Sei-Gyung K Sze, MD

Pediatrics | Pediatric Hematology-Oncology

As a pediatric hematologist/oncologist, I enjoy caring for children, adolescents, and young adults with a wide variety of diagnoses. I feel privileged to work in this field, and to bear witness to the strength and resilience that arises from some of the most challenging circumstances. I am committed to partnering with patients and their families to provide compassionate, comprehensive care using a multidisciplinary team-based approach. When not at work, I enjoy spending time with my husband and son, exploring all the wonderful activities this beautiful state has to offer.

Clinical Interest
Acute Leukemia, Bone Marrow Failure, Hematology and Oncology, Neuroblastoma
Language(s) Spoken

Education & Credentials

Education & Credentials

Board Certification

  • Pediatric Hematology-Oncology, 2019
  • Pediatrics, 2013


  • Duke University Medical Center, Pediatric Hematology-Oncology, 2017
  • Duke University Medical Center, 2018


  • Yale New Haven Children's Hospital, Pediatrics, 2014

Medical School

  • University of Rochester School of Medicine/Dentistry, 2010
Hospital Affiliation
  • Maine Medical Center since 2018
  • Maine Medical Partners since 2018
  • MaineHealth Accountable Care Organization since 2018
  • MaineHealth Cancer Care Network