Dr. John Allan, MD

Dr Allen is a wonderful doctor very thorough. Very compassionate takes time with you makes you feel very comfortable. I’m happy he’s my doctor.

Follow up and treatment.

Dr. Allan has a professional yet very approachable manner. Excellent explanation of bloodwork. Positive attitude but also pragmatic.

perfect

Any positive reviews are phony. They're posted by Allan's weirdo assistant "Melissa". This guy is utterly cold. Allan's only priority is to book appointment fees. He'll try and force you to book uneccessary appointments and journey to the hospital even when he has nothing to say. And his assistant is a complete phony. I wouldn't trust her to give me the time of day. I got away from this guy immediately and moved my care to Sloan Kettering.

It's so rare these days to find a Doctor that's upfront, thorough, independent thinker and open minded. Dr. Allan is in a class above the rest.

Dear Dr. Allan, Looking back on the journey of the past few years, I feel profound gratitude and appreciation for the extraordinary care, professionalism, and moral support you provided me. You became not just my doctor but also a source of hope and strength during the most challenging times of my life. Each time I came to you with anxiety over my test results, I found solace and confidence in your words. You instilled in me the belief that I could overcome this illness and that the day of remission would surely come. And that day finally arrived. I will never forget the evening when my family gathered to share the news of my test results. All my children and grandchildren surrounded me in silence, creating an atmosphere of intense anticipation. In that moment, it felt as though my heart would leap out of my chest. Then, my wife began to speak… and suddenly, the entire family joyfully and loudly exclaimed in unison, “You’re cancer-free!” Those words changed my life. I couldn’t hold back my tears. It was a moment of incredible relief, joy, and gratitude. We had come such a long way, and I know this would never have been possible without your knowledge, skill, and sincere dedication. I don’t have the words to fully express the depth of my gratitude. You not only restored my health but gave my family and me the chance to experience life together again. You gave us a future. I will always remember your kindness, professionalism, and compassion. My family and I will continue to pray for you and your wonderful team of doctors. May your life be filled with joy, success, and the same warmth you so generously share with your patients. From the bottom of my heart, thank you for everything you have done for me and my family. With heartfelt appreciation Serguei Markov.

Dr. Allan showed true concern about my condition. He took time with me explaining options and answering my questions. He also recommended a good surgeon for my biopsy. I will be very confident , going forward, to having Doctor Allan treat my blood disorder.

I recently visited Dr. Allan at Weill Cornell Hospital and I couldn't be happier with the experience.Dr. Allan is not only super knowledgeable but also really kind and attentive. He took the time to listen to all my concerns and explained everything in a way that was easy to understand. I never felt rushed, which was awesome.If you're looking for a great doctor, I highly recommend Dr. Allan. Thanks for being amazing!

Visits are consistently very satisfying with good attention from support staff. Dr. Allan has managed my CLL with excellent results and I am most grateful for his care.

Continued attention to detail

Was my first visit with Dr. Allen. Found him to be very personable, and detailed in his recommendations. Explains the whys and what ifs. Highly recommended Doctor.

I really like Dr. Allan. There is no question about his expertise on CLL. He and his entire team are great.

Caring, empathetic, extremely knowledgeable. Also very direct and informative.Excellent support staff too.

I couldn't be happier.Dr. Allan is wonderful!

Dr. Allan is a kind and attentive doctor. He explained my situation thoroughly and clearly and patiently answers questions. I never feel rushed when I am there.

Dr. Allan has a calm demeanor. His calmness combined with his professional confidence enables easy responses to questions.

This visit was a breeze. There was hardly any way either for the lab or to see the doctor. Dr. Allan is always patient with my questions and concerns and explains the results of my bloodwork right then. Usually I have to wait in the waiting room to see him but this time was so easy, I couldn’t even finish my Wordle .

I have been seeing Dr. Allan for a few years now. He has always provided excellent and responsive care and made sure my questions were fully answered.

attentive, sympathetic, informative