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Raynald Samoa,

M.D.

Endocrinologist

5 (187 Ratings)
Biography photo
Location
City of Hope Comprehensive Cancer Center - Duarte
1500 East Duarte Road
Duarte, CA 91010
Specialties
Diabetes, Endocrinology and Metabolism
Pediatric Endocrinology
Education
Medical school:

University of Washington, Seattle, WA, M.D.

Residency:

Pediatrics - Women & Children's Hospital Los Angeles County, Los Angeles, CA

Internal Medicine and Pediatrics - University of Southern California Medical Center, Los Angeles, CA

Academic Appointments
  • Associate Clinical Professor, Department of Diabetes, Endocrinology & Metabolism
About Me

Endocrinologist Raynald Samoa, M.D., is board certified in Pediatrics, Internal Medicine and Adult Endocrinology, bringing a well-rounded and thoughtful approach to patient care at City of Hope® Cancer Center Duarte. He completed his adult endocrinology fellowship at the Los Angeles County–University of Southern California. 

Dr. Samoa’s research is primarily focused on how appetite is regulated and how that impacts obesity, particularly in underserved and minority communities. He is passionate about addressing health disparities and helping patients make meaningful, lasting improvements to their health.

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.
Apr 16, 2026
5.0
"Good"
Apr 16, 2026
5.0
"Good"
Mar 27, 2026
5.0
"Dr. Samoa is very professional, patient focused, friendly & attentive to my health concerns."
Mar 17, 2026
5.0
"I have been a patient for a long time"
Feb 25, 2026
5.0
"Dr. Samoa is kind, amazing and compassionate. He is very knowledgeable and provided care to the whole person instead of only focusing on endocrine diagnosis."
Feb 18, 2026
5.0
"Excellent Dr.....personable, listens and discusses all medical issues. Such a compassionate Dr who treats you like you are his only patient and gets to know you as a person."
Feb 18, 2026
4.7
"[...] Dr. Samoa is [...] an excellent endocrinologist."
Feb 7, 2026
5.0
"Dr Samoa is one of the best doctors at City of Hope. He has the sensitivity to explain and make the kids and parents comfortable with the decisions about treatment. He takes time to listen and answer questions making sure there are no concerns or doubts."
Jan 27, 2026
5.0
"Would definitely recommend"
Jan 13, 2026
5.0
"Dr. Samoa is a great professional. Patient,Kind, caring, listens & I never feel rushed when at my appt with him!"
Jan 10, 2026
5.0
"Great doctor, very caring"
Dec 18, 2025
5.0
"Dr. Samoa's bedside manner is beyond excellent. He listens to his patients and advises them in a calm and soothing way. My wife and I are happy to travel from [...] to COH to be under his care. My wife and I are so pleased to be Dr. Samoa's patients."
Dec 18, 2025
5.0
"Great Doctor, very Kind and easy to talk to."
Dec 5, 2025
5.0
"Excellent experience"
Dec 1, 2025
5.0
"Great office"
Dec 1, 2025
5.0
"Great visit"
Nov 20, 2025
4.9
"I simply love COH, the care, the staff, the Doctors, etc"
Nov 20, 2025
4.9
"The Doc was pleasant, empathetic and understand my fear of being added more medicine."
Oct 6, 2025
4.9
"Dr Samoa is great."
Oct 6, 2025
4.9
"City of Hope is my best hospital"
Sep 27, 2025
5.0
"Provided holistic information to help my anxiety and insomnia"
Sep 15, 2025
5.0
"Dr Samoa has our highest recommendation"
Sep 13, 2025
5.0
"Dr Samoa, is the first provider that has called me to make sure I received the information regarding possible cancer side effects, due to family history! He was very caring and concerned! Thank you Dr. Samoa!"
Sep 11, 2025
5.0
"Good"
Sep 11, 2025
5.0
"Always good experience with Dr Samoa"
Sep 9, 2025
5.0
"Best of the BEST"
Sep 1, 2025
5.0
"Dr Samoa actually listened to me and made recommendations based on my needs and concerns. Thank you!!"
Aug 21, 2025
5.0
"Excellent doctor humble compassionate knowledgeable and patient"
Aug 16, 2025
5.0
"Dr Samoa continues to run blood tests and try to get medication authorized despite issues with the insurance and their willingness to allow him to use his judgement on my health. I appreciate that he takes the time to keep looking for answers even though we keep getting shot down by the insurance company."
Aug 1, 2025
5.0
"Dr Samoa is very attentive to my medical needs."
Jul 11, 2025
4.9
"Amazing doctor 1st time I felt my question was not completely answered about vomiting and dosage"