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Sudarsan Vishnu Kollimuttathuillam,

M.D.

Medical Oncologist and Hematologist

4.9 (253 Ratings)
Biography photo
Location
City of Hope Orange County Lennar Foundation Cancer Center
1000 Five Point
Irvine, CA 92618
Specialties
Hematologic Oncology
Medical Oncology
Education
Medical school:
Board Certifications
  • Internal Medicine

  • Medical Oncology

  • Hematology

  • Advanced Cardiovascular Life Support

  • Basic Life Support

Degrees
  • 2012, Bachelor of Medicine, Bachelor of Surgery (M.B.B.S.) Government Medical College Kottayam, Kerala, India

Fellowship
  • 2017-2020, New York Medical College, Saint Joseph University Medical Center, Paterson, New Jersey

Internship
  • 2014-2017, Internal Medicine, Seton Hall University Hackensack Meridian School, Trinitas Regional Medical Center, Elizabeth, New Jersey

Professional Experience
  • 2021-present, Assistant Clinical Professor, Department of Medical Oncology & Therapeutics Research, City of Hope, Huntington Beach and Irvine, California

  • 2020-2021, Hematologist-Oncologist, Pacific Shores Medical Group, Huntington Beach and Irvine, California

Academic Appointments
  • Assistant Clinical Professor, Department of Medical Oncology & Therapeutics Research
About Me

Sudarsan Vishnu Kollimuttathuillam, M.D., is a medical oncologist and hematologist at City of Hope® Cancer Center Duarte, where he provides compassionate, expert care that centers on the unique needs of each patient. Dr. Kollimuttathuillam is particularly focused on advancing cancer care beyond the traditional approaches of the past to incorporate more leading-edge options and access to clinical trials. 

Dr. Kollimuttathuillam earned his medical degree from Government Medical College in Kottayam, India, followed by a residency at Seton Hall University in South Orange, New Jersey, and a fellowship at New York Medical College in Valhalla, New York. His research contributions include studies on engraftment syndrome—a serious complication related to stem cell transplants—as well as analyses of blood-related issues in COVID-19 patients. 

Outside of the clinic, Dr. Kollimuttathuillam enjoys spending time outdoors, playing chess and practicing mindfulness.

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.
May 31, 2025
5.0
"I love doctor "K". He is very professional and very caring."
May 14, 2025
2.4
"He was not prepared. He went through the medical record while we were there. He cut me off and I didn't feel He that he knows or cares to know my medical details"
May 8, 2025
5.0
"Good"
May 8, 2025
5.0
"Good"
Apr 30, 2025
5.0
"All my family, friends, neighbors and all of my specialist know Dr K and his staff take care of me very well. He truly cares for his patients with respect, empathy, takes his time to explain until I understand"
Apr 26, 2025
5.0
"Enjoyed my visits with Dr.K. [...]"
Apr 23, 2025
5.0
"I would always recommend the City of Hope"
Apr 23, 2025
5.0
"Dr K is the best!"
Apr 22, 2025
5.0
"Highly recommend Dr. K at COH"
Apr 22, 2025
5.0
"Dr. K was phenomenal. He listened and asked all the right questions. I feel he truly considers bigger picture of health. I am incredibly grateful for him."
Apr 17, 2025
5.0
"They speak my language and explain very well"
Apr 17, 2025
5.0
"Very happy with the attention they gave me"
Apr 15, 2025
4.7
"[...] I am very happy with Dr K and will stay with him [...]"
Apr 9, 2025
5.0
"New blood panel was performed. My blood panel from last week was reviewed, and his concerns were explained to me. Future plans for what we might do to improve my health and the decisions about that were explained to me he is trying to help me for a better health."
Apr 9, 2025
5.0
"[...] any future visits or explanation of health and meds were discussed with me immediately and I thank you for taking my visit that day [...]"