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Outstanding! Can’t say enough great stuff about this Doctor. Almost too thorough. Did more than I asked and spends plenty time explaining. This is a person who truly cares….I think he saved my life…. Dana H., Manhattan, NY,  June 2017


Dr. O’Brien is a professional, kind and patient doctor with friendly office staff.  We went there to treat chronic pain resulting from a spinal injury.  It’s been almost one year since we met him and life has been so much better without the use of opiates.  He will take the time to talk with you and explain the procedures in detail and always available to answer any questions. — Stephanie Y., Manhattan, NY (source: Yelp.com)


This in my opinion: [Doc Tommy] is one of the best doctors in NYC. I suffer from nerve damage and I qualify for legal cannabis use in NY. I am no longer taking opiates. Oxy sucks; it ruined my life. Thank you, Doctor O’Brien for your help and concern. He has the real doctor’s bed side manners. He is helping me to be pain free. Please consider him for your medical needs. — Todd Hinden, New York, NY (source: Yelp.com)


Dr. Tom O’Brien, you are a miracle worker! Thank you for helping us find a solution for my mother-in-law’s nightly aggression and agitation associated with dementia. The hemp oil has cured her of all sun-downing symptoms and allowed her to remain in her home for more time (her wishes). I am now the pied piper of your program sending all of my friends to you! Keep on doing good and helping others seek answers to cures via the amazing properties of medical marijuana/hemp oils. The more I learn about cannabis, the more you hear overwhelming stories, like this one, with cures over illnesses such as cancers and many neurological issues and pain management! Again, I can’t thank you enough for your guidance! Go Dr. Tommy O!! —Diane Kallimanis Halka and the whole Halka Family


Thank you for providing expert and compassionate care. I always feel cared for and my level of confidence in the medical care that you provide is infinite. Thank you for keeping me healthy. – Donna M., Manhattan


Life Changing!!!! I could not be more pleased with the professionalism, level of knowledge and the environment! Dr. O’Brien truly cares and you feel it from him & the staff immediately! I couldn’t be happier!!! 🙂 – Nicole C., (Source: MarijuanaDoctors.com)


Dr. O’Brien is professional, knowledgeable, and very thorough in his examination and discussion of pain management options. I’ve had lifelong chronic pain and he took the time to review my past medical history to evaluate what may be the most beneficial next route. The office staff is lovely and he is on time and spends as much time as you need listening and answering any questions you may have. I highly recommend Dr. O’Brien. – Cindy S., (Source: Yelp.com)


My meeting with Dr. O’Brien was excellent. His care and compassion for my chronic condition was clearly evident (emotionally, physically and neurologically). He has a warm, friendly, professional bed-side manner and carries himself with pride and humility. He was thorough in his examination, he educated me about my body and gave me good recommendations. I made a good choice to see Dr. O’Brien — he’s kind, compassionate and knowledgeable. I couldn’t have asked for more. THANK YOU. – Gloria R., (Source: MarijuanaDoctors.com)


Dr. Tom O’Brien has been my physician for nearly 10 years. Having spent a career in the Air Force as a pilot my health was always checked and taken serious. Dr. Tom O’Brien is the best physician I have ever had the honor of meeting and knowing. He always makes my health a priority. And truly cares about my well-being. I highly recommend him without hesitation. – Sandy K. LT COL, USAF, Retired, Westchester Co.


Very nice practice.  Easy to make an appointment, friendly staff, almost no wait time.  Dr. O’Brien is very personable, answers all your questions and is not rushed.  Plus you get free gifts! – Diana I., (Source: Yelp.com)


Amazingly informative!! Dr. Tommy O (O’Brien) explained everything in excellent detail and in a way my son and I could fully comprehend his medical problem ad the appropriate treatment. This way we understand why we are using the prescribed medication and how to use it. Thank you so much!! –  Enid G., Queens


Thank you, Dr. O’Brien! I was scared to go to another doctor’s appointment but Dr. Tommy said he treats his patients like family…and he was right! He was incredibly kind and most impressive to me, he really knew his stuff. Finding a doctor willing to talk to you for an hour (in NYC!), and discuss chronicity of illness and care options, was so amazing. He knows all about the CCA and wants to see his patients feel well. I highly recommend him to other patients. – Jess D., (Source: Yelp.com)


Everything about this practice is good. He has the sweetest assistant, the cleanest office, the cutest bathroom, and a basket of samples in the waiting area. WHO DOESN’T LIKE FREE SAMPLES? He knows his information and is not shy about explaining it to you. When you make an appointment with Dr. O’Brien, you’ll notice how he gives you his undivided attention. I hope you read this before choosing any other doctor b/c you’ll be making a big mistake. – Felicia P., (Source: MarijuanaDoctors.com)


Great Doctor, very informative! He took me in and explained many ways I may prevent the issues I came in for. – Anu S., Queens


Dr O’Brien, he is terrific. He diagnosed my problem and prescribed the correct medications. He also explained what was wrong and what the medications he was giving me would do. He took the time to answer any questions I had. He is a great family doctor and I would not hesitate to recommend him. – Marjorie K., Queens (source: Yelp.com)


For back pain, sports-related injuries and other muscle problems, Dr. O’Brien is your guy. He’s a doctor of Osteopathic Medicine and has a good handle on how inflammation and nerve compression lead to pain, as well as how to manage that pain without heavy medication. Affable bedside manner, too. – Jennifer D., Queens (Source: Yelp.com)


Dr. O’Brien is probably one of the best Dr. I’ve ever dealt with! – Lola A., Queens. (Source: Yelp.com)


Hey Doc, just want to sincerely thank you. For the first time in 7 years I wasn’t doped up but I was pain free. It’s a feeling that I couldn’t t even begin to describe. You have changed my life. All those years of opiates and horrible medicines controlling me, now I am in charge of my body and my comfort and it’s all thanks to you. Can’t wait to see you at next appointment to really talk! – Mitchell C. Westchester Co.


I am writing this review because more people need to know that not only is medical marijuana like a miracle for many, horrible health conditions, there IS a wonderful doctor who knows his stuff and really cares about his patients!

I ONLY have great things to say!  After dealing with a creep in Brooklyn (and not being seen because he was running late and no one there was friendly or apologetic. You know, that “too hip to care about offending you attitude?”), I found only 5-star reviews about Dr. O’Brien on websites about legal, medical marijuana access in New York State.  ALL of the reviews were right!  My experience has been great!!!

1) THE most professional and polite doctor and receptionist I’ve ever had the pleasure of dealing with! They immediately put me at ease and Dr. O’Brien took his time, carefully listened, made intelligent suggestions, and further expanded on the research I’ve done.

2) Dr. O’Brien assisted me in registering on the NYS website so that there would be no delays in the reception of my ID card.

3) Dr. O’Brien is friendly, sociable, and has a great sense of humor!  He put me at ease immediately and helped me to deal with the (ridiculous) stigma about using medical marijuana for my condition.

4) GORGEOUS OFFICE! It’s a museum of Dr. O’Brien’s many, many accomplishments and decorated with a true, artistic eye; conveniently located in Midtown and easy to get to; immaculate; and I was totally comfortable from the first moment I walked through the door.

5) You get what you pay for!  I feel that the time and attention that Dr. O’Brien gave me was well worth his fees and I like his discount and referral programs!  I’ve referred 3 people who are suffering with debilitating conditions and, classy guy that he IS, he offers perks in appreciation.

Do yourself a favor: START WITH THE BEST and forget the rest!  Doc Tommy REALLY CARES about his patients, which is why I brought my elderly aunt to him.  I trust him with myself and my loved ones.

It is clear to see that he’s not just in it for cash – which is how I felt about that jerk in Brooklyn and a few doctors I researched online and whose offices I called. – Glamoura D. (source: Yelp.com)


I am Patient MK; I have a rare, incurable and recurring cancer. When I met Dr. Tommy, my concern was neuropathy (nerve pain) resulting from repeated surgeries. Dr. Tommy advised me about pain management via medical cannabis. But he didn’t stop there – as a DO (Doctor of Osteopathy) Dr. Tommy inquired about my “whole health” – meaning how my diagnosis was impacting me aside from the cancer, such as, the emotional effects (anxiety, depression, sleep loss), gastrointestinal effects (IBD caused by repeated surgical recoveries); side effects (of long-term chemo), muscular effects (wasting, ventral hernia).

By inquiring far more broadly than my oncologists, and giving me the opportunity to explain my primary illness AND the collateral damage it causes – he was able to treat treated ALL the challenges that arise from living with recurring cancer (to the extent that medical cannabis can help them). No, medical cannabis has not cured my cancer – but it has allowed me to sleep; to stop worrying and grow my hope; to eliminate nausea and cramping, thereby allowing me to enjoy my favorite hobby (cooking); and get out for walks and sunshine when nerve pain would have previously kept me home.

Thanks to Dr. Tommy, my qualify of life is vastly improved – which is the secret to enjoying life with recurring cancer. Life will not be perfect – it never is. I still have cancer. But I am much happier – which gives me strength to manage treatment side effects, and to live happily with cancer. – MK, New York


Dr. Tom O’Brien, You are a miracle worker! Thank you for helping us find a solution for my mother-in-law’s nightly aggression and agitation associated with dementia. The hemp oil has cured her of all sun-downing symptoms and allowed her to remain in her home for more time (her wishes). I am now the pied piper of your program sending all of my friends to you! Keep on doing good and helping others seek answers to cures via the amazing properties of medical marijuana/hemp oils. The more I learn about cannabis, the more you hear overwhelming stories, like this one, with cures over illnesses such as cancers and many neurological issues and pain management! Again, I can’t thank you enough for your guidance! Go Dr. Tommy O!! —Diane Kallimanis Halka and the whole Halka Family


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