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Nairi Berner,

M.D., M.S.

Endocrinologist

5 (232 Ratings)
Biography photo
Location
City of Hope Orange County Lennar Foundation Cancer Center
1000 Five Point
Irvine, CA 92618
Specialties
Diabetes, Endocrinology and Metabolism
Education
Medical school:

Rosalind Franklin University of Medicine / Chicago Medical School, North Chicago, IL

Residency:
  • 2006–2009, Internal Medicine Residency, Yale New Haven Hospital, New Haven, CT
  • 2009–2010, Chief Residency, Internal Medicine, Yale New Haven Hospital, New Haven, CT
Academic Appointments
  • Associate Clinical Professor, Department of Diabetes, Endocrinology & Metabolism
About Me

Nairi Berner, M.D., M.S., is an endocrinologist at City of Hope® Cancer Center Duarte. Dr. Berner is dedicated to building relationships with her patients that are founded on mutual trust and collaboration, with the goal of helping those with diabetes and pituitary disorders grow stronger, improve their wellbeing and regain a sense of hope as they transition into recovery. 

Dr. Berner earned her medical degree at Rosalind Franklin University of Medicine and Science in Chicago, where she was also a member of the Alpha Omega Alpha Honor Medical Society. She went on to complete her internal medicine residency at Yale New Haven Hospital in Connecticut, serving an additional year as chief resident. She completed her training with a fellowship in endocrinology at the University of California (UC), Irvine, where she also earned a master’s degree in biomedical and translational sciences. 

Dr. Berner joined City of Hope in 2022, bringing with her a strong background in both clinical care and academic medicine. Prior to this, she served in positions at Saddleback Medical Group, Northwestern Memorial Hospital in Chicago, Yale New Haven Hospital and as assistant clinical professor of endocrinology at UC Irvine. Outside of her professional life, Dr. Berner enjoys spending quality time with her family.

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 29, 2026
"Great experience"
Apr 29, 2026
"I love everything about City of Hope"
Apr 29, 2026
"Excellent care."
Apr 24, 2026
"Excellent physician, very knowledgable and provides clear explanations and a treatment plan."
Apr 22, 2026
"My doctor is a gem"
Apr 13, 2026
5.0
"Dr. Berner is very kind, compassionate, good listener and very knowledgeable. Grateful for her."
Mar 28, 2026
5.0
"Doctor was amazing !"
Mar 28, 2026
5.0
"Dr. Berner simply outstanding ! along with staff"
Mar 20, 2026
5.0
"Already recomended to friends and relatives."
Mar 20, 2026
5.0
"She's the BEST always available when need, provides the reasons and understanding what happening plus she's CARING."
Mar 4, 2026
5.0
"Dr. Berner is very knowledgeable, caring, and compassionate."
Feb 28, 2026
5.0
"Will be pleased to recommend Both Dr B and City of Hope. I am quite impressed. This was my first visit."
Feb 28, 2026
5.0
"Dr B listens, discusses with a friendly and professional back and forth, is clear, understanding and respectful. What more could I ask for?"
Feb 24, 2026
5.0
"Dr. Berner took time to explain things to me and answer any and all questions I had."
Feb 20, 2026
5.0
"This was my first appointment. The Doctor was more than excellent and the Hospital was absolutely fantastic. You are amazing. Thank you for your service and care"
Feb 8, 2026
5.0
"I was happy with Dr Berner's visit and her plan for my treatment."
Feb 6, 2026
4.7
"I had good experience. [...]"
Feb 6, 2026
4.7
"I loved this doctor's kindness, friendliness, and knowledge!"
Feb 5, 2026
5.0
"Just overall great experience!"
Feb 5, 2026
5.0
"Dr Berner was amazing; I love her!"
Feb 4, 2026
5.0
"Dr Berner is an excellent, competent, caring provider. Very kind as well."
Feb 1, 2026
4.7
"I wish I could see your establishment for everything."
Jan 7, 2026
4.7
"Excellent-I feel sincerely cared about"
Jan 3, 2026
5.0
"What an awesome Dr"
Dec 20, 2025
5.0
"Dr. Nairi A. Berner is a very professional doctor and provided me with excellent care, she was interested in helping me with my health problems."
Dec 20, 2025
5.0
"Dr Berner is compassionate courteous professional"
Dec 18, 2025
5.0
"Dr. Berner is one of the best doctors I've ever had! She's very knowledgeable and caring :)"
Dec 10, 2025
5.0
"My doctor is so patient and understanding. She communicates well and explains things clearly and lets me decide. I trust her"
Dec 5, 2025
5.0
"Dr Nairi Berner answered all my concerns and explained me in detail the action plan for my treatment. She is detail oriented and very kind, I truly feel she cares for patients."
Dec 4, 2025
5.0
"[...] The providers I have seen at City of Hope have been both compassionate and detail-oriented."
Dec 2, 2025
5.0
"Dr Brenner was EVERYTHING I could have wanted in a physician. She reviewed my history, the outcome of my surgery and made recommendations for follow up. She left no questions unanswered. I appreciate her very much!"
Nov 22, 2025
5.0
"Yes I would recommend Dr. Berner"
Nov 14, 2025
5.0
"Very happy with my first visit with this doctor."
Nov 12, 2025
5.0
"Dr. Berner is very knowledgeable and professional in her area of care. She is empathic and sympathetic to the needs of her patient."
Nov 9, 2025
5.0
"I've never been 'not ordered' and then directed to not go home and to go to the hospital with so much confidence and determination before. Just so thankful for her sincere concern about me getting some immediate care."
Nov 9, 2025
5.0
"Each and every person that I encountered for the duration, from emergency room to discharge, was beyond professional and attentive. Not for one second did I feel as though I wasn't their most important task before them while taking care of and watching over, me. Each and every person is the definition of my being blessed. [...]"
Nov 6, 2025
5.0
"Dr. Berner is so compassionate. I am grieving the recent loss of my mother and she has been so kind and takes my pain into consideration."
Oct 25, 2025
5.0
"Very good"
Oct 25, 2025
5.0
"Very good"
Oct 22, 2025
5.0
"The staff has always been great but as far as Dr. Berner goes, there isn't anyone that I would trust or want to care for me."
Oct 22, 2025
5.0
"Dr. Berner is by far the most compassionate, intelligent, and qualified provider I have ever had. She is the absolute best doctor for my needs. I hope this finds the right person, Dr. Berner is the definition of outstanding medical care and she's an absolute treasure to jer patients and the medical community."
Oct 6, 2025
5.0
"I really like and respect doctor Berner she's so Easy to talk to and so helpful."
Oct 6, 2025
5.0
"I love city of hope and I have recommended our friend of mine to seek services at your facility. Because they are so great. She was feeling lost and had no way to turn. And I think she's very happy now."
Sep 29, 2025
5.0
"Communication with doctor and assistants using the portal is excellent."
Sep 29, 2025
5.0
"Sought out Dr. Berner for better expertise handling my DMII condition. Very satisfied with her guidance."
Sep 27, 2025
5.0
"I often refer this practice to others."
Sep 24, 2025
5.0
"Dr Berner is up to date and engaged in my continuing treatment."
Sep 20, 2025
5.0
"Just refer Dr Berner to a friend"
Sep 18, 2025
4.4
"Very good experience"
Sep 18, 2025
4.4
"Very good experience"
Aug 28, 2025
5.0
"I can not say enough about Dr. Berner she is so realistic and alway and I mean ALWAYS on my team for overall health and wellbeing. She listens well looks at the whole picture adjusts and cares. She is always there for me. In a dream world all Doctors would be like her. She is so up to date, educated, open to listen, kind, caring, very well thought out."
Aug 23, 2025
5.0
"One of the best doctors I have ever seen. Very knowledgeable and thorough."
Aug 20, 2025
5.0
"Dr Berner is a caring physician. She explains treatment options well and includes patient in care plan"
Aug 13, 2025
5.0
"I'm fortunate to have my doctor, she's great"
Aug 13, 2025
5.0
"Best experience"
Aug 4, 2025
5.0
"Dr Berner is fantastic, kind, thoughtful and very comprehensive in her approach to my health. Thank you!"
Aug 3, 2025
5.0
"Never had a bad experience at the City Of Hope facilities. Not with any doctor. Not with any nurse. Not with anybody in the blood labs. Everybody is so courteous and friendly and wonderful. I trust in them thoroughly. I recommend this place highly"
Aug 1, 2025
5.0
"Excellent!!! Very knowledgeable and helpful! Addressed all my concerns."
Jul 25, 2025
5.0
"Very impressed with COH."
Jul 23, 2025
5.0
"Love Her ! Great Dr !"
Jul 20, 2025
5.0
"Dr Berner is excellent!!"
Jul 5, 2025
5.0
"The best specialty doctor I've have had."
Jul 5, 2025
4.7
"Provider herself was great [...]"
Jun 21, 2025
4.7
"Wonderful!"
Jun 21, 2025
4.7
"Reccommended!"
Jun 21, 2025
4.7
"Amazing!"