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Paul Koller,

M.D.

Hematologist-Oncologist

5 (71 Ratings)
Biography photo
Location
City of Hope Comprehensive Cancer Center - Duarte
1500 East Duarte Road
Duarte, CA 91010
Specialties
Hematologic Oncology
Education
Medical school:

Board Certifications

  • 2018 American Board of Internal Medicine — Hematology
  • 2018 American Board of Internal Medicine — Medical Oncology
  • 2015 American Board of Internal Medicine — Internal Medicine

Degrees

  • 2012, M.D., Medicine, University of Texas, Houston, TX

Fellowship

  • 2015–2018, Hematology/Oncology Fellow, Supervisor: Robert Wolff, M.D., Department of Cancer Medicine, University of Texas, MD Anderson Cancer Center, Houston, TX

Residency

  • 2012–2015, Internal Medicine, Supervisor: Richard Hamill, M.D., Department of Internal Medicine, Baylor College of Medicine Affiliated Hospitals, Houston, TX

Professional Experience

  • 2019–present, Assistant Professor, Department of Hematology & Hematopoietic Cell Transplantation, City of Hope, Duarte, California
  • 2018–2019, Instructor, Department of Leukemia, MD Anderson Cancer Center, Houston, TX
Academic Appointments
  • Assistant Professor, Division of Leukemia, Department of Hematology & Hematopoietic Cell Transplantation
About Me

Paul Koller, M.D., is a leukemia specialist at City of Hope®® in Duarte, California, where he serves as an Assistant Professor in the Department of Hematology and Hematopoietic Cell Transplantation. He is dedicated to improving care for patients with both acute and chronic forms of leukemia through clinical and translational research and personalized treatment. 

With a goal to bring the latest science directly to patients, Dr. Koller focuses on developing new, targeted therapies and treatment combinations that are based on the biology of each patient’s disease. He serves as a primary investigator on several trials for conditions including chronic myeloid leukemia (CML), acute myeloid leukemia (AML), acute lymphoblastic leukemia (ALL) and high-risk myelodysplastic syndrome (MDS).

Patient reviews
The patient ratings and comments on this page are obtained from an external Press Ganey® outpatient survey provided to all eligible City of Hope patients within one to two weeks of their treatment occurrence. Raw data from the answers to the survey questions about our physicians are calculated by Press Ganey into a one- to five- star rating. In the spirit of transparency, all patient comments are posted as written by the patient, whether they are positive or negative. We only exclude comments if they are deemed to be slanderous or libelous, contain profanity or vulgar language, or do not relate to the patient's experience with the doctor involved. As a result, the comments are the views and opinions of the patients surveyed and are not endorsed by, and may not necessarily reflect the opinion of, City of Hope.
Mar 31, 2026
5.0
"Excellent"
Mar 31, 2026
5.0
"Excellent"
Mar 22, 2026
5.0
"He's the best"
Mar 3, 2026
5.0
"Dr. Koller, [...], and the entire team are amazing. The care I received throughout my treatment has been excellent. I'm very grateful for their professionalism, kindness, and support. Thank you."
Jan 29, 2026
4.9
"Very knowledgeable, informative, and friendly - thanks"
Aug 25, 2025
5.0
"Love Dr. Koller. He is kind and compassionate."
Jul 15, 2025
5.0
"The doctor was very kind"
Jul 12, 2025
5.0
"Dr Paul Koller is a fantastic dr! He always listens to what I have to say. He is extremely informative. I'm very lucky to have him as my City of Hope dr!!"
Jun 24, 2025
5.0
"I was admitted to the hospital as a result of this appointment. It was handled quickly and efficiently based upon a good conversation with my provider."