Meet Jun Mao, MSK’s Chief of Integrative Medicine

Integrative medicine specialist Jun Mao

Jun Mao’s background blends Eastern and Western medicine.

Jun Mao recently joined MSK as Chief of the Integrative Medicine Service. In addition to overseeing patient care, he also conducts research on the benefits of complementary therapies for people with cancer.

You have an undergraduate degree in chemical engineering and clinical training in family medicine and in acupuncture. Did you always envision bridging Eastern and Western medicine in your career?

I stumbled into medical research and became really fascinated with medical science, so that’s how I became a doctor. But because of my undergraduate background, I’ve always been intrigued by how a process works. Engineering is a very process-oriented major.

I’m always interested in the system as a whole, while paying attention to the parts. If you look at a human being in that way, you can see cancer in the context of the entire body. As I pursued Western medicine training, it felt like some of that was missing —sometimes we focus so much on figuring out the exact parts of the body that we sort of forget the whole. 

That led me to turn to Eastern medicine. Being the Chief of Integrative Medicine is my dream job. The goal is really to bring the best of conventional medicine together with therapeutics that originate from other cultures and traditions and apply scientific method to research them and eventually disseminate them into clinical practice. Ultimately, we want to allow cancer patients and their family members to have more tools available to them to deal with the physical, emotional, and spiritual impacts of cancer.

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How do Eastern and Western techniques complement each other?

One good example is my research on helping women with breast cancer deal with side effects of hormonal therapy, such as tamoxifen or aromatase inhibitors. Those drugs are meant to decrease the activity of estrogen in the body and therefore are very powerful tools against hormone receptor–positive breast cancer. But estrogen is also vital for other parts of women’s well-being. Without it, many women have hot flashes, joint aches, mood instability, insomnia, and other problems.

My research in acupuncture has shown that when used for these women, it can help reduce joint pain, decrease hot flashes and anxiety, and improve sleep. By combining Eastern and Western approaches, we allow them to have the best symptom control, hopefully adhere to their lifesaving drugs, and improve their longevity.

Another way to think about it may be that conventional drugs are more about targeting the disease and integrative medicine focuses more on healing the whole person.

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What’s the difference between integrative medicine and alternative medicine?

Integrative medicine as a discipline, especially in the context of cancer, was pioneered at MSK. The department was established by Barrie Cassileth with support from the Rockefeller family in 1999.

Unlike alternative medicine, integrative medicine focuses on using research to inform evidence-based practice of complementary therapies. Integrative medicine is also better integrated into patients’ treatment and survivorship care plans to help them adhere to conventional treatments while augmenting their symptom control and improving their quality of life through other means, such as yoga, acupuncture, or meditation.

As President of the Society for Integrative Oncology, I help lead our group to advocate for scientific research to understand both the safety and the efficacy of complementary therapies. There’s a continually emerging body of literature that suggests many of the therapeutics we use, such as massage, acupuncture, meditation, and yoga, have beneficial effects for psychological distress, insomnia, pain, and fatigue. And those are very common in cancer patients.

Alternative medicine often completely operates on empirical experience. In some contexts, there are people who take advantage of that and make unsubstantiated claims that some herbs or substance can cure cancer without scientific proof. And that’s really why integrative medicine tries to separate itself from alternative medicine.

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Why is it better for a person with cancer to come to MSK for an integrative medicine treatment like massage or acupuncture or yoga, rather than a gym or a spa?

Great question. There are a number of reasons. First, our clinicians are very experienced. For a lot of our patients, especially those going through active treatment, a lot of their symptoms and side effects and toxicity require specialized knowledge about their cancer treatments and potential interactions.

For example, our oncology massage therapists have specific training in addressing fibrosis and lymphedema after patients have had radiation or surgery. You won’t find that skill set in a gym or in a spa, or with a community practitioner.

Individual Therapies
The Integrative Medicine Service offers touch therapies, mind-body therapies, acupuncture, creative therapies, physical activity and fitness classes, and nutrition counseling.

Another example is side effects like chemotherapy-induced peripheral neuropathy or some of the gastrointestinal symptoms — nausea, vomiting, diarrhea, constipation —related to chemotherapy. Those are not really commonly seen by a community acupuncturist. Our acupuncturists have a tremendous amount of experience and can also monitor laboratory results. In the case of a patient’s red blood cells, platelets, or white blood cells being very low, they need to modify the treatment to ensure optimal safety.

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Why did you decide to come to MSK?

I was incredibly impressed with the singular mission of MSK in providing the best cancer care. That really resonates with what I want to do in the context of integrative oncology.

And seeing the level of support from the institution for advancing rigorous integrative medicine for cancer patients and caregivers — that really excited me. Integrative medicine has a deep tradition at MSK. It was a great opportunity for me to come here and work with my colleagues to continue to push the boundaries, advance the scientific understanding of the therapeutic effects of many interventions, and develop large-scale, sustainable clinical practice. We can truly transform the care we deliver for cancer patients, both at MSK and eventually broadly in the United States and around the world.

But what excites me the most is the opportunity to conduct novel large-scale clinical research that can establish the scientific basis for many integrative medicine treatments.

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Do you have any trials currently open for MSK patients?

We just opened a trial here funded by the Patient-Centered Outcomes Research Institute. It’s called the CHOICE study. It’s a comparison between acupuncture versus cognitive behavioral therapy [CBT] for insomnia in cancer survivors.

It’s a two-site study between MSK and the University of Pennsylvania. We’re going to enroll 160 cancer survivors with all different types of the disease and evaluate which therapy is more effective for addressing insomnia. In addition, we’re going to try to investigate whether acupuncture or CBT may be more effective in certain types of insomnia in certain patients. The study is going exceedingly well, with 25 patients already enrolled in the last two months.

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What are your other plans for the department?

We are actively bringing our integrative medicine services and our clinical research program to MSK’s outpatient sites in New York and New Jersey. So far we’ve brought acupuncture to MSK Westchester and most recently to MSK Basking Ridge, but we’re planning to eventually expand to MSK Monmouth [opening in December 2016] and MSK Bergen [opening in 2018].

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What do you tell people who are skeptical about the benefits of integrative medicine?

I think skepticism is a healthy thing. Just like for a lot of conventional cancer treatment, there’s always skepticism, and that helps us to push the envelope more. Clinicians are always asking whether a therapy is working or whether it’s safe. I actually don’t think we should have a blind acceptance of everything.

In terms of people being concerned about a placebo effect, it’s a really great question. I am very intrigued and actually studying that.

Think about placebo effect as a mind-body effect: If you actively engage your mind in wanting a specific outcome, you achieve the outcome. I think the way we are answering whether acupuncture or other types of therapies are better than placebo is by trying to understand the mechanisms underlying the pain, depression, anxiety, and distress that people are experiencing, whether a lot of that is driven by the mind-body effect.

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What do you like to do when you’re not in the office?

I have a 9-year-old daughter and a 7-year-old son. They love to run and swim. Those are my hobbies too. Central Park is my favorite place.

On the weekends, we try our best to explore the city because there’s so much to see and experience, whether it’s the museums, the parks, all the foods — we love eating foods from all cultures. I think it will take a while for us to savor the richness of New York City. 

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Commenting is disabled for this blog post.

I am looking for help in curing liver disease . Last year I have been diagnosed with cirrhosis of the liver , stage I . Please contact if you can help ! Thank you

Dear George, we are sorry to hear about your diagnosis. We recommend that you discuss possible treatment options with your physician. Cirrhosis of the liver and certain types of chronic liver disease, such as chronic hepatitis B, leave you more likely to have liver inflammation and scarring — and to develop liver cancer. To learn more about ways to reduce your risk and about screening for liver cancer, please visit Thank you for reaching out to us.

I am 40 years old and was diagnosed with Breast Cancer in April. I underwent a double mastectomy, chemo and radiation. I finished on November 18th and have started Tamoxifen.
I am trying to learn more and find support in integrative medicine but am finding it to be a challenge in Las Vegas. Do you have any affiliations in Las Vegas or any referrals?
I have been doing a lot of reading and your website and information seem to be the most straightforward, honest and reliable.
Thank you in advance for any guidance.

Dear Dima, we are sorry to hear about your diagnosis. We are glad to know that you have found the information our website helpful.

We recommend that you call our Integrative Medicine Service directly. They maintain a list of cancer-trained acupuncturists available throughout the country. They may be able to refer you to one in your area, and they may know of additional local resources for complementary therapies that may be of interest. Their number is 646-888-0845.

Thank you for reaching out to us.

I am an acupuncturist but are still having problems with helping my patients with neuropathy after reseving chemotherapie.
How are you helping these patients.

I am an RN & strong believer in Integr. Med, especially for cancer pts. It is so important & I'm glad that you have it available for pts. but curious why pts. are not told of the program, ( I have known people being treated there) as it would be a great benefit in minimizing side effects of chemo. Please insure that doctors and nurses are aware of the I.M. therapies and inform their pts. Thank you.

Dear Cynthia, thank you for sharing your thoughts.

I have a sister who has had major surgery for Ovarian cancer. She had chemo and for the past six months has been cancer free. She is getting IVIG treatments. She has been diagnosed with NEOPLASTIC SYNDROM WHICH HAS AFFECTED HER CEREBELLUM. SHE IS NOT ABLE TO WALK, AND HAS DIFFICULT controlling her arm movements. She is getting physical therapy twice a week. She was doing well but lately has gotten worse. She is also receiving a treatment from a neurologist ever 3 weeks in his office. It is also an IV treatment. I am not sure of the name. I was wondering if she could benefit from intergrated treatment. she is willing to try anything. she was told there was no cure for her diagnosis. during the summer she was doing well with excercise in the pool which we are currently looking into. Would love to hear from you and see if there is anything you think might help. Even doing a trial. Thank you for your time. would appreciate any feedback you can send. Jean Cozzolino

Soy paciente del hospital tengo leucemia el año pasado me dieron quimioterapia. Los primeros días de diciembre me dio herpes al momento tengo fuertes ardores internos estoy tomando lírica desde el miércoles pasado pero no me pasa este ardor no puedo dormir y esto me está deprimiendo mucho .
Quisiera ver si me pueden ayudar con esto

Querido Cesar,

Sentimos oír los detalles de tu situación. Debes llamar a tu oncólogo para analizar tus síntomas y entender cuáles deben de ser los próximos pasos en tu plan de tratamiento.

Gracias por tu comentario.

I lost my mother to cancer in 2014. As tough is it was, I have learned so much about integrative medicine solutions that I wish I knew about before. With that being said, it pushes me to share with others how important it is to research options that are all around you. In my mother’s memory we have built a wellness center in Costa Rica to help educate the world with mind body connection and the importance of nutrition and mind body balance. Thank you for building the bridge for Eastern and Western Medicine. Lives can be forever changed.

Dear Dana, we are very sorry for your loss. Thank you for sharing your story. Best wishes to you.

I was seen for consult st sloan Christmas time. I am now on exetemesa for breast cancer stage 1 b. No chemo. I am very anxious and depressed and want to get some help. Living in hawaii. Might go to hong Kong china for a few weeks, should I try acupuncture there. Does it work for depression? Very severe depression and anxiety plus suicidal thoughts. Someone needs to find an answer for this. Thank you

Dear Kathy, we’re very sorry to hear you’re going through this. If you are in urgent distress, please call the National Suicide Prevention Hotline at 800-273- 8255 or go to for more information.

These feelings are not uncommon after cancer diagnosis and treatment. Drugs that affect your hormones like the one you’re taking may contribute to these feelings. You should discuss your feelings and symptoms with your doctor or another member of your healthcare team, because they can refer you to a therapist who can help you cope with these issues. If you’re thinking about trying acupuncture, it’s important that you first consult with the healthcare team that’s currently treating you. Thank you for your comment, and best wishes to you.

I'm a licensed massage therapist solely focusing on Oncology Massage. I'm so happy that you provide this service for your patients. It's extremely helpful.

Who would I contact to speak about employment in your integrative medicine department?

Are there other MSKCC doctors outside of the city? Bergen? Westchester?

Dear Connie, MSK has locations in both Bergen and Westchester. To see a complete list of our locations, you can go here:

If you are interested in making an appointment, you can call 800-525-2225. Thank you for your comment and best wishes to you.

Hi. My oncologist advised me to take Tamoxifen for 10 years. I am puzzled because as far as I know it should be taken for 5 years. Is there any study/research that would support this? I am planning to get pregnant? For how long should I stop taking Tamoxifen before getting pregnant? If I am not qualified to take Tamoxifen, is there any other alternative with lesser side effect or maybe herbal capsules to take other than Tamoxifen that would reduce/halt my estrogen production. Your expertise and knowledge about this would truly help me a lot. Thank you.

Dear Cheryl, we recommend that you discuss this with your doctor. If you are interested in coming to MSK for a consultation or second opinion, you can make an appointment online or call 800-525-2225. Thank you for your comment and best wishes to you.

I am An Italian doctor working in the field of Lymphoma and Myeloma. I am graduating at a 3 year School of Acupuncture. Will it be possibile to visit your center for a period of 1 to a maximum of 3 months?

Dear Cavallo, thank you for your comment. We recommend that you contact our International Center at We have also forwarded your message to Dr. Mao.