Colleen Elizabeth Annesley, MD

Colleen Elizabeth Annesley, MD


On staff since September 2015

    • Alison Bellevue, WA 10.03.17

      Dr. Annesley is a wonderful physician - very knowledgeable,caring, and compassionate! She treated our son for HLH recently. She is a very good communicator and took time to answer questions and address our concerns. We are very happy with the care we received from Dr. Annesley and the entire Hem/Onc clinic!

    • Sammantha Orting, WA 08.23.17

      Dr. Annesley is the BEST! Our son Grayson is currently receiving treatment at Seattle Childrens for Leukemia and she is his doctor. She is very smart and walks us through every lab test, chemotherapy dosage, listens to us and answers all of our questions respectfully. She never acts like shes in too big of a hurry to bother with us like our last doctors and is always super sweet to us and especially Grayson. I have seen a huge change in him since coming to Seattle a few months ago. He was very shy and very nervous around our last doctors and it was heartbreaking. You can tell he truly adores her and trusts her and that makes our hearts so happy! We would move to Africa if that's where she was! Best doctor ever!!!

    • Steve Wake Forest, North Carolina 07.28.17

      We came to Seattle for the PLAT 02 trial for my 15 year old son. Dr. Annesley was his primary physician during our time here. She. Is. Amazing. She seemed to be ever-present. She was patient with our every question. She treated Harrison and our entire family with respect and understanding. Dr. Annesley took the time to explain every aspect of the trial and treatment to Harrison. I never once questioned her sincere commitment to his well-being. Harrison thinks of her as a friend as much as a doctor. She combines a brilliant mind with a brilliant personality. In almost six years of cancer treatment we have met dozens of pediatric oncologists. Every family forced into the childhood cancer community would want one like Dr. Colleen Annesley. She is hero.


Board Certification(s)

Pediatric Hematology-Oncology

Medical/Professional School

Temple University School of Medicine, Philadelphia


Pediatrics, University of Miami, Miami


Pediatric Hematology-Oncology, Johns Hopkins Medicine, Baltimore
Pediatric Hematology-Oncology, Johns Hopkins Medicine, Baltimore