Quynh-Thu Le, MD received her medical school and radiation oncology training at University of California, San Francisco. In 1997, she joined Stanford, where she holds the Katharine Dexter McCormick & Stanley Memorial Professorship and is Chair of the Radiation Oncology Department.

Her research focuses on translating laboratory findings to the clinic and vice versa in head and neck cancer (HNC), specifically in tumor hypoxia, radiation resistance, Galectin-1, and salivary gland stem cells.

Clinically, she has led multicenter phase II and III clinical trials, testing the addition of novel drugs as radiosensitizer or radioprotector with chemoradiotherapy in HNC. She has received grant support from ASCO, ASTRO as well as P01, R01 and R21 grants from the NIH. She was inducted into the Fellowship of the American College of Radiology (FACR), the American Society of Therapeutic Radiology and Oncology (FASTRO) and the Institute of Medicine/National Academy of Medicine (IOM/NAM). She was also honored with the Caltech Distinguished Alumni Award in 2015.

Administratively, she is the Co-Director of the Radiation Biology Program at the Stanford Cancer Institute and the Group Chair of the NRG Oncology, which is the largest group in the NCI National Clinical Trial Network (NCTN). She used to chair Head and Neck Disease Site Committee of NRG Oncology before becoming the group chair. She has served as a reviewer for several cancer related journals and NIH study sections. She has also been actively involved in many committees of national and international organizations such as ASTRO, ASCO and AARC and ARS.

Professional Summary

Education & Certifications
  • Residency: UCSF Radiation Oncology Residency (1997) CA
  • Internship: Alameda County Highland Hospital Internal Medicine Residency (1994) CA
  • Medical Education: University of California at San Francisco School of Medicine (1993) CA
  • Board Certification: American Board of Radiology, Radiation Oncology (1998)
  • MD, UCSF, Medicine (1993)

Awards & Memberships
  • Distinguished Alumni Award, California Institute of Technology (Caltech) (2015)
  • Fellow, American College of Radiology (ACR) (2011)
  • Fellow, American Society of Therapeutic Radiation Oncology (ASTRO) (2014)
  • Member, Alpha Omega Alpha Medical Honor Society (1993)
  • Member, Induction into Institute of Medicine (IOM) (2013)
  • Recipient, American Association of Woman Radiologist Early Career Professional Development Award (2002)
  • Recipient, ARRO Educator of the Year Award (2014)
  • Recipient, ASCO Clinical Research Development Award (2002-2005)
  • Recipient, ASTRO Junior Faculty Research Fellowship (2000-2002)
  • Recipient, Henry Kaplan Memorial Prize for Teaching Award (1998, 2000)
  • Recipient, Radiologic Society of Northern American Resident Research Award (1997)
  • Recipient, UCSF Regent Scholarship (1989-1991)
  • Top Graduate in Medical School Class, Sadie E. Berkove, MD Fellowship (1993)

Administrative Appointments
  • Chair, Department of Radiation Oncology, Stanford University (2011 - Present)
  • Co-Director, Radiation Biology Program, Stanford Cancer Institute (2004 - Present)


Clinical Trials

Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials.

Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.

Practice Locations

Radiation Oncology at Blake Wilbur Building Palo Alto, CA
Palo Alto, CA

875 Blake Wilbur Drive

Palo Alto , CA 94304

(650) 498-6000

Make An Appointment More Clinic Information » Getting Here »

CyberKnife Stereotactic Radiosurgery Program at 875 Blake Wilbur Palo Alto, CA
Palo Alto, CA

875 Blake Wilbur Drive

Palo Alto , CA 94304

(650) 498-6000

Make An Appointment More Clinic Information » Getting Here »

Head and Neck Cancer Program at 875 Blake Wilbur Palo Alto, CA
Palo Alto, CA

875 Blake Wilbur Drive

Palo Alto , CA 94304

(650) 498-6000

Make An Appointment More Clinic Information » Getting Here »

Patient Ratings

(53 Ratings)

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Patient Reviews

(111 reviews)

The. Best. Thank. You
She is excellent. Knowledgeable, understanding and able to communicate in patient non-medical terms.
Outstanding in every way
Dr Le is a treasure!
Top notch physician, compassionate
Thank you
Very good doctor
She is not only an outstanding physician But also very personable.
Thank you!
She's an excellent doctor focused, thoughtful, and thorough in every way. She listens to every question and addresses them with facts. I am not an easy customer and I am comfortable having her guide the treatment through a very difficult time for me both psychologically and physically.
DR. Lee and her staff are the best.
She explained things very eloquently and completely. Excellent doctor.
Dr. Le is a wonderful smart, caring Doctor.
Very honored to have such wonderful care from the very best in the World!
She’s great and cares
They made sure that I understood everything they were going to do
She's just AWESOME!
very good at answering questions and giving new information
Excellrnt care!!
Very friendly and carrying stuff. Much appreciated !
Dr Le accomplishes an attentive interview.
Continue to be delighted with Dr. Le's caliber as a Health Provider
Dedicated professional.
Dr. Le is extremely knowledgable. Agnes was very thourough..
Dr. Le is absolutely the best.
It was informative, instructive talking to him. He gave me a lot of confidence that he and his staff were knowledgeable and experienced and would do a great job administering the procedure. Calmed my anxieties about the procedure, gave me confidence. He really explained the procedure well to me. Thank you!
She is an excellent doctor who really talks to her patients
Dr Le is amazing.
Dr Le is the very best.
Thank you very much.
Very good!
Love Dr. Le. She gives much attention.
Dr. Le and Eric are a great team. Thorough and efficient.
Dr. Le & Shalonda (RN) were magnificent, caring and made sure I was cared for above and beyond.
Dr. Le and her team are second to none! She is so professional caring and most imp competent. I trust her completely!!!! She's fantastic.
Dr. Le is fantastic.
Dr. Le - The best - always concerned about my issues - Follows up on everything - Again the best.
Never a bad experience.
Dr. Quynh Le is an exceptional doctor - she is very thorough & caring. My husband is an MD also and he says she quintessential doctor. I am blessed to have her as my MD.
Dr. Lee is the BEST!
Dr. Quynh-Thu Lee is superb from all points of view. So is her team.
Dr. Le is extraordinary - her skill, caring, positive attitude, expertise.
Doctor Le is the "gold standard" of care providers: Extremely capable, thoroughly knowledgeable about her patients, makes me feel as though he/she's the only patient Dr. Le has!
Dr. Le always goes above and beyond. Excellent care!
All good.
Dr. Le is the BEST. She has been treating me for 3.5 years and has always been amazing.
All the staff (PA, nurse, NP etc.) are very good & nice & approachable especially my doctor (Dr. Quynh Le) she is very nice answered all my question excellent. Friendly & approachable.
Dr. Le is the most outstanding physician I have ever met/worked with. She is amazingly brilliant, deeply experienced and is empathically gifted. She is a true gem.
Dr & nurses answer my question.
Dr. Le is a exceptionally thorough, kind and supportive physician! I could not have completed radiation without her excellent help.
Intern & Dr. Le excellent!
Dr. Le is the BEST!!!
Dr. Le is among Stanford's best of the best!
Dr. Le has been seeing my husband since 2004. She is compassionate & knowledgeable. She is the BEST.
In my opinion, Dr. Le is exceptional!
Dr. Le has been my doctor for 12 years. I continue to be impressed by her knowledge & skill as well as her caring attitude. She's great.
Dr. Le identified an inflamed nodule of concern, recommended effective treatment, and coordinated with Dr. Damrose for follow up care.
Excellent -
Dr. Le is fantastic - The very best of Stanford's best.
Nice, opening, respond to my questions & explain.
Doctor Quynh-Thu Xuan Le is the best!
She would go to the extent of informing me next doctors' appointments.
Dr. Quynh Le is absolutely amazing. I am so fortunate that she took my case and saved my life. I will be forever grateful!
Dr. Le is the best. Her knowledge and patient concern is outstanding. This goes for her nurse assistant. There is not enough superlatives to describe Dr. Le.
Dr. Le and her team are first rate. I feel fortunate to have her as my doctor.
No complaints.
there are not enough superlatives for Dr. Le. (But y'all already knew that.) She seems to instinctively know one's concerns before they do. After visit notes are great.
Dr. Le is superb -in every way - care, expertise, kindness, skill.
Dr. Le has provide me exceptional care since 2008. I value her expertise and "clinic presence." She is also an "ambassador" for other cancer treatment at Stanford.
Dr. Le is always kind and takes her time with you. Would highly recommend.
Dr. Le is the very best. Walks on water! Jeffrey Edwards was terrific.
Dr. Le is great. She and the rest of her team and Stanford's Oncology Dept. saved my life. I'm forever grateful!
Excellent by any standard.
Dr. Le is an excellent doctor. I feel very fortunate to be able to under her care. She is very attentive, caring, and supportive. She really cares about her patient!
My "team" of doctors at Head & Neck Oncology are the "BEST".
It's always good to see Dr. Lee.
Dr. Le is the BEST in every way. Highly skilled and intelligent, but also very caring and personable. I have the utmost respect for her.
Dr. Le Quynh optimizes the role of a cancer care provider & always exemplifies how to make a patient feel about medical care being the best & comprehensive always she is the "BEST" care provider in my 10 years of Stanford Care.
Dr. Le is great.
Very thorough.
I have not had a bad experience - ONLY GOOD ONES.
Have great confidence in Dr. Le and staff - trust I will get good care.
Dr. Le is the best doctor I am so glad she's my doctor!
I couldn't ask for better care.
Wow! I couldn't believe how great the doctor was. He answer ALL our questions and more awesome.
I am very pleased with the performance of the team dr.'s that is provided for me, they are concerned about my well being, and very explanatory about what type of treatment are needed.
Dr. Le is a caring and patient provider. She is accommodating and provides time to listen to me and is extremely attentive.
My husband and I LOVE Dr. Le!
I absolutely love Dr. Le. Great doctor, great person. The best. Kind, caring, brilliant, awesome. I consider myself privileged to be in her care.
Dr. Le provides exceptional care, treatment, and "bedside manner." I'm fortunate to have her expertise post-surgery for the past 5 1/2 years.
Dr. Q. Le is exceptionally empathetic and always demonstrates care & concern for me as a patient & as a human being.
Dr. Le is not only exceptionally skilled but also makes the patient feel as though he/she is the only patient she will be seeing that day.
Always made sure I understood their explanations and procedures.
Dr. Quynh-Thu Le is the best doctor I have ever had; she is always on time & courteous. She helped to facilitate my radiation treatments & made a terrible time in my life much more bearable. I knew she would always listen to me & never keep waiting when I had to wear the mask.
Dr. Le is a wonderful(!) Doctor very happy to have her as my oncologist.
The very best care.
Excellent above.
Could not ask for better!
Dr. Le is the best!
I spent only about 5 minutes with Dr. Le in my first post-cancer treatment with her. I certainly would have appreciated more time.
Dr. Quynh-Thu is as personable and excellent doctor.
I live with the words teamwork in my mind. You have a great TEAM!
Couldn't ask for better than Dr Le!!
Dr. Quynh Le is my life saver. She gave me back my life.
Dr. Le is the most empathetic physician I have ever encountered.
Cancer is not good and everyone made me feel good about my treatment.
Dr. Le is a treasure, best dr. ever.

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