I have been consulting with Dr Chang for almost 10 years now for different members of my family and have recommended lots of friends. He knows all the latest treatments available and most importantly he believes in do as min harm to the body as possible. He has helped me filter through all the supposedly “miracle” treatments that people have suggested to me. He helped to prolong my hubby and my Gran’s life with greater quality of life. His supplements have been supporting my family and myself. I’m grateful for a doctor like him.

We’ve been seeing Dr. Chang for over 8 years now, ever since we were looking for additional treatment options for my 19-year-old son’s brain tumor, alongside the standard of care. Despite being based in California, we’ve been able to maintain strong communication with Dr. Chang through Zoom calls and emails. Dr. Chang is always quick to respond to our questions, and we truly appreciate his thoughtful and evidence-based approach to treatment. We’ve also had great experiences with Liz and Frankie, who are always helpful whenever we need to order medications or schedule appointments. The team has made a significant impact on our experience, ensuring that every detail is taken care of with professionalism and care. Whenever we travel to NYC for treatment, everything runs smoothly, thanks to their attentive coordination. Dr. Chang's approach is always rooted in published clinical evidence, which gives us confidence that our son is receiving the most up-to-date and effective care possible. We’re incredibly grateful for the support and expertise Dr. Chang and his team provide. It’s clear they genuinely care about our son's well-being and are committed to helping him through this journey.

Dr. Chang has been an invaluable part of my network of care givers in my 8-year journey with Cancer. His innovative approach to treating my disease has been truly meaningful and is one of the reasons that 8 years in i am one of the lucky ones. I'd recommend him unequivocally and in fact i have on 3 occasions!

Dr. Chang was recommended to me by my niece who is his patient in NYC. I live in Romania and having access to Dr. Chang has changed the way I see my treatment towards a full recovery. He is kind and patient to explain every recommendation in detail. He is able to oversee my treatment via Zoom and make all the necessary adjustments and give me the advice needed.

Dear Dr. Chang, I would like to thank you sincerely for your kind care and attention you have given to my dearest mentor, brother, friend and my leader. Your compassion ,expert care and guidance through this difficult time made the difference and positive well-being of his health. I thank you and your team once again. With best wishes

I have been a patient of Dr. Chang for almost a year. I live in the Netherlands and since October 2023 I know that my ovarian cancer (5 years after my first diagnosis) is back. My oncologist's advice was to first wait and see, and eventually start chemo again, but I refused. I did a lot of research, watched documentaries, read books, listened to podcasts about a more holistic approach. This is how I found Dr. Chang. He is a very knowledgeable person, has an impressive track record and is an independent thinker. He takes an integrated approach where the focus is on strengthening your immune system. It includes dendritic cell vaccination, lentinan injections, T-cell therapy, metabolic approach, supplements and TCM. I'm glad I found him and it feels safe to have him as my doctor.

A close personal friend has been seeing Dr. Chang for some time, and I’ve accompanied him on several occasions. I’ve been truly impressed by Dr. Chang’s depth of knowledge, attention to detail, and the way he takes his time with patients. He doesn’t just address the immediate concerns but also helps with broader health questions, offering thoughtful insights on everything from foundational health principles to the latest medical discoveries. He’s incredibly sharp when it comes to distinguishing real science from passing trends, which is rare and invaluable in today’s world. Above and Beyond in Patient Care Despite the distance, my friend makes it a point to travel to New York from Dubai for Dr. Chang’s expertise – which speaks volumes about the trust placed in his care. I’ve seen firsthand how much effort Dr. Chang puts into every consultation, ensuring his patients feel informed, empowered, and cared for. Truly grateful for his work, and congratulations to him and his team on 25 years of excellence!

I have been a client of Dr. Chang for over 2 1/2 years. Dr. Chang is one of the most intelligent doctors I know. His Experiences and knowledge have helped me in Seeking a cure for my breast cancer. He is patient and listens to your concerns. His contacts in the medical field are phenomenal and He’s unafraid to use them to help his patient . He Is the number one doctor to go to if you have cancer and need an alternative method to help you in your quest for cure for your cancer. Thank you Dr. Chang all you’ve done for me.. Constance Accardo.

Dr. Chang treats me for stage 4 metastatic breast cancer and is an amazing oncologist with unparalleled knowledge on traditional Chinese medicine as well as western medicine. I am very pleased with my treatments and would highly recommend him.

I have known Dr. Chang for almost 20 years when my college mentor referred my dad to him. They were both treated with kindness and care and a lot of support during their cancer journey; often interacted as a friend and not just a patient, engaging in nice dialogue and stories. I am now also his patient and putting my trust in Dr. Chang to help me beat my cancer and become fully healthy again.

It is no secret that so much of modern medicine has become about profit and rushed cookie-cutter care. When you are diagnosed with cancer, particularly an aggressive or metastatic case, modern medicine falls entirely short and you are left feeling scared and wishing for additional weapons to fight your battle. You need someone in your corner who is willing to look at your case from different perspectives to come up with integrative and alternative possibilities to help fight back the enemy. Dr. Chang has given me hope in my battle against the beast of Triple Negative Breast Cancer because he is fighting with me! He hasn’t forgotten that medicine is a healing art and not big business. I am grateful to God that he is my doctor. The office staff is super kind and caring. The office is peaceful and comfortable.

My husband has stage 4 sarcoma in his spine. We found Dr. Chang after we came to the grim realization that our Oncologist at University of Michigan did not have anything to offer beyond the chance of buying a little time, or making things more comfortable, with chemo & radiation (that does not appear to have helped, and is obviously a nightmare to go through). Our initial consultation with Dr. Chang was a breath of fresh air. He was willing to take the time to really explain things to us. I was impressed with his knowledge, and that he has studied both Eastern and Western Medicine. He was straight forward, but empathetic and compassionate. We even talked about diet and supplement regimen (finally, a Doctor who acknowledges that this is important!) Before the consultation was over, we had a plan and a path forward. It's hard to explain how much this hope means to us. Since then we have started treatment with Dr. Chang and also his partner in Germany, and have seen some evidence that it is helping! We are so thankful to have found Dr. Chang.

The staff @ this office have always been professional and courteous. Dr. Chang approachable and knowledgeable. I am grateful to them for their assistance in helping me achieve a true miracle. Thank-you

Dr. Chang and his team are outstanding. I have had a wonderful experience working with them as an alternative and /or adjunct to traditional cancer treatment. I feel so fortunate and blessed to have discovered them and would absolutely recommend anyone diagnosed with cancer to consult Dr. Chang at some point in their research and treatment journey. -Kerianne

I have seen about fifteen physicians up to this point in my cancer journey. Without question, Dr. Raymond Chang has been the best of any cancer Dr I have seen. He is also the best Dr I have ever encountered for any condition. The level of knowledge, quality of services, and compassionate care I have received from Dr. Chang has exceeded my expectations. My previous experience working in hospitals as a health care worker exposed me to many fine physicians. In my opinion, Dr. Raymond Chang is the ‘best of the best’. He has my highest recommendation, and my deepest respect. I am grateful I found Dr Raymond Chang through the recommendation of Dr Ralph Moss of ‘The‘Moss Cancer Reports’. Dr Moss has reviewed cancer specialists on an international level for decades. I knew his recommendation of Dr Raymond Chang would be solid however; my experience has been more positive then I could have hoped for. Thank you, Dr Chang! Thank you!

I highly recommend Doctor Chang. He is kind, caring and extremely knowledgeable. My dad was diagnosed with Glioblastoma in December 2021, and we immediately contacted Doctor Chang. He has put together a well thought out multi-dimensional approach for my dad's cancer. He truly takes the time to analyze your situation and do what's best for you. He answers emails thoroughly and very promptly. With Doctor Chang, you know you are in good hands, and you know you have a Doctor that cares about you and wants to see you get better. I feel very fortunate and blessed to have Doctor Chang leading the fight against my dad's cancer.

A doctor's visit with Dr. Chang is an incredible experience because he's brilliant, cares so much, and his "cocktail" approach to treating cancer makes so much sense for addressing such a multi-dimensional disease.