Dr. Leonard is the best doctor I've ever had. He spends time with patients to explain everything, has a polite demeanor, and is very thorough in his exam. However, I cannot give him 5 stars because of his horrible receptionist. She is rude and curt with patients, almost aggressive. I have also seen her take personal calls to while patients are waiting and even places other patients on hold. read more

Dr. Leonard is a great personal physician -- I'd recommend him to anyone looking for personal care on the upper east side. He is punctual, personable, and very efficient. You find yourself in and out of the doctor's office in short order, and not because you've been rushed -- just because he goes about his business in an expedient manner. To make clear how high my recommendation goes: I just created this Yelp account specifically to leave him good feedback. The world must know, and all that. read more

Dr. Leonard is the best doctor in NYC, and I say this after having tried several others. He is not only brilliant as a practitioner, but he listens and is kind. Dr. Leonard is the first (and only) doctor to really make me feel human - Dr's (especially in the tri-state area, I'm from CT) always seem like they're in robot mode and I've questioned the intelligence of most. Dr. Leonard is different - he get's to the bottom of what's going on with your health to make sure that you are treated in the best manner possible. His office of nurses and admin's are also top notch. They work very closely to ensure that you understand your own insurance and policies. They are experts in explaining what your HR Department/Insurance provider typically fails to communicate. With this office - there are never any surprises. Dr. Leonard was recommend to me by a former co-worker who couldn't say more positive things. I have gone on to recommend him to 2 other colleagues and they have gone out of their way to tell me just how wonderful he is. To give you an example: I work in Chelsea and live very far away from Yorkville, but he is the only Dr. that I will go to. This goes the same for my colleagues who live in Hoboken, Park Slope, and Long Island City. He is worth it. read more

Haven't left a Yelp review in years but wanted to get back into things because I had such a wonderful experience with Dr. Leonard. I hadn't been to the doctor in 3 years and was a bit apprehensive but he was friendly, kind, and thorough, and made me comfortable enough to talk about the nagging things that I was a bit worried about but was embarrassed to discuss in case they were nothing. He was recommended to me by a coworker that has been seeing him for years and loves him equally -- due to her enthusiasm and all of our great experiences half of my office now schleps from Brooklyn to go see him. He's the best! read more

Dr. Leonard is great - I was a patient of his for a couple of years and only stopped going because I wanted to find someone closer to my apartment. He was always friendly and caring, very attentive to his patients' needs. His office staff was charming! They never hesitated to squeeze folks in if something was urgent. Great doctor! read more

I have been going to Dr. Leonard for over 8 years. He is professional, proactive and very thorough. I enjoy his staff as well as his front desk. The receptionist does an exceptional job at fitting me in, calling my pharmacy or just calling me back if I leave a message. I really feel that in this day and age there are few doctor office's that make you feel like a valued person and this office does an excellent job. read more

He is very personable and very thorough. I can tell that he gives my concerns a lot of thought and attention. He also has referred me to some great specialists. I feel as if I am in good hands with Dr. Leonard. read more

Don't let the positive reviews here fool you. Pay very close attention to Jeffery Y's review, specifically regarding his interactions with Dr. Leonard's secretary, Xiomora (I believe that's how you spell it). I have nothing positive to say about her. She's curt, baselessly condescending, unreasonable, devoid of compassion, refuses to listen to anyone but herself and, consistently miscommunicates with both patient and her employer, Dr. Leonard. For instance, I received a VM from Dr. Leonard in regards to some test results and, when I listened to it, gave him a call back to discuss some findings he voiced that were alarming to me. Long story short, his secretary simply did not want to let me talk to Dr. Leonard, but rather stated he needed additional test results before we could even chat. I'm not sure how Dr. Leonard gives her the authority to make such a decision, especially without a medical degree. Seems shortsighted and negligent. Further, when a patient is concerned about their test results a doctor has not directly communicated to him/her, it's a doctor's obligation to have a conversation with his/her patient at the patient's request. A degree of compassion is necessary in the medical field. Thankfully the doctor did eventually call me back, but only after my fiancé called the office after me expressing to Xiomora how concerned I was about Dr. Leonard's VM. I was more at ease after talking with Dr. Leonard, but that was short-lived when I found a notable discrepancy between what the doctor and I discussed and what I read in my radiology report the very next day. The discrepancy was significant and, again, alarming. Leonard said I had one thing, and the report said I had something very different. Consequently, I called his office once again to inquire about the discrepancy. A nurse picked up, listened to my concern, and immediately stated the doctor would call me back. Moments later, however, I received a call from Xiomora. She was abrasive in tone, combative and outright condescending. At no point did she even listen to me as I explained my reason for calling. Instead, she kept reiterating that the doctor could not speak to me because he had already done so the day prior. Further, if I wanted to speak to him, I'd have to make an appointment. Frustrated, I pointed out the discrepancy to her in detail. At that point, she finally put me on hold and went to go speak to Dr. Leonard. Now for Dr. Leonard. When I came off hold, he was on the other end. Right out of the gate, in a frustrated and rude tone, he began reprimanding me for calling. During his rant, he reiterated most of what his secretary had said, specifically about having already spoken to me. Clearly, Xiomora didn't provide him the correct information in regards to why I was calling again. When I pointed out my reasoning for calling again, Dr. Leonard calmed a bit, and stated his secretary told him something very different. According to him, his secretary said that I was calling to complain, ranting that he had not called me back the day prior. Clearly this was not the case, nor my reason for calling that day. In a still frustrated state, however, he blurted out that he lied about my test results as he "didn't want to freak me out." I get his perspective, but, candidly, it is not his decision to make. I had a test done, he got the results. It is his job to tell me what those results are, what they mean, and where to go from there. His approach leaves room for ambiguity, confusion and, logically, increases a patient's anxiety. After a lengthy conversation that I must admit was productive, Dr. Leonard apologized for his actions and on behalf of his secretary. I appreciated that, but I moved on to another provider. I don't need the drama and harassment in addition to my health concerns. Bottom line, he's a good doctor and he knows his stuff. He does need to work on making himself available to his patients, controlling his temper, and being more considerate of other people's emotions. Most importantly, however, he shouldn't be lying to patients, irrespective of his reasoning. His secretary, on the other hand, I have no explanation nor excuses for. She is just outright cold and cannot communicate effectively with either her boss or his patients and, as a result, cannot serve as a medium between a doctor and his patients. Coming from a client-service based industry, I'm not even sure how she is allowed to be customer-facing in any capacity. read more

I have been seeing Dr. Leonard for years. Love him so much that even though I live in New Jersey, he remains my doctor. He is smart, caring, insightful and works hard to remain up to date. read more

Dr. Leonard is an excellent internist -- but only when you're in his office. He has the most insensitive, inhumane secretary I have ever dealt with in a medical practice. I reported this to dr. Leonard a year ago, and he confirmed that he had had multiple complaints about her. Despite this, he still has not replaced her. It is also my observation that he now has too many patients to handle adequately, not enough support staff, and will no longer return phone calls -- regardless of the issue. Recent example: A couple of weeks ago I called the office around 12 noon and asked to speak to Dr. Leonard anytime that day or night with an urgent medical issue regarding my heart. I explained to Secretary Ratched (see "Cuckoo's Nest") that I was dizzy and my heart rate was very slow -- and needed to ask Dr. L if I should go to the ER, or make an appt to see him quickly. Instead of receiving a call from HIM, the same secretary called me back in a few hours. She said that Dr. L's advice was that he could see me the next day, but "if the symptoms get worse, go to the ER." I asked her how bad they had to be to go the ER. She said I'd have to figure that out myself, and Dr. L didn't have time to call that day or night to ask about them. In desperation, I called the Empire BCBS Medical Help Line. After asking me 10 minutes of questions about my symptoms, the nurse practitioner told me that I should go to the ER "within one hour", according to Empire's guidelines. I feel that Dr. L's ambiguous advice, and more importantly his failure to call me back, put my health in serious jeopardy. As a Clinical Psychologist, I appreciate the vital importance of being available to patients in crisis. Dr. L and/or his office does not. As much respect as I have for Dr. L, I strongly recommend that you look elsewhere for an internist. I'm looking for another physician myself right now -- one who has the time to deal with patients when they have potential emergency issues. read more

Dr. Leonard stopped accepting my insurance in January 2009, and I have put off finding another doctor ever since, because I just don't think anyone will be able to compare with him! Both my husband and I were patients for about 5 years. I found Dr. Leonard via a recommendation from a colleague, and am so glad I did. He is kind, friendly, and takes the time to explain things and make his patients comfortable. He also strikes the right balance between taking your health complaints seriously and running tests, and not being alarmist or a "pill pusher." I constantly recommend him to friends, but wanted to take the time to review him on Yelp to share with others. His office staff can be brisk but they are professional and efficient, and while it can take a while to get an appointment for something non-urgent like a physical, I have always been able to get in within a day for an urgent need or illness. He is a great doctor! My only complaint is that I wish he was still in the Aetna network. read more

I visited Dr. Leonard this morning and I must say that he is by far the best doctor I've ever been to. He is extremely thorough. He took the time to answer all of my crazy questions. He is really cares about the health of his patients. He is officially my new PCP. You can't go wrong with him. read more

Dr. Leonard and staff are absolutely wonderful! I was in need of a primary care Dr. A few months ago And am so glad I came here! Dr. Leonard is kind, intelligent and thorough. He does not rush through his exam and takes the time to listen to your concerns and address them fully. He even took the time to call me when my test results came in and explain them, at 8:30 pm! That shows his level of dedication to his patients. His staff was nothing short of pleasant, respectful and helpful. I am a healthcare professional myself and I've referred my patients to him when they are in need of a primary care physician. Would definitely recommend! read more

Dr. Leonard has always taken the time to talk with me during my appointments to make sure I understand what is going on. I would recommend him to anyone who needs a primary doctor. read more

Dr. Leonard is one of the best doctors in NYC. He is very thorough, smart, attentive and genuinely cares. Great 'bedside' manner. He goes out of his way to make himself available and really goes the extra mile- squeezing you in when you need to be seen, and even making a special trip to come in to the office to see you. I have been going to Dr. Leonard for many years, but I was originally referred to him by another physician who is a personal friend, and everyone else I have referred since has been very pleased with Dr. Leonard as well. As a matter of fact, Dr. Leonard isn't in network for me, but, because he is such a wonderful physician, I still choose to go to him, even though my insurance doesn't pay. read more

I echo what Sharfi said in another review - Dr. Leonard is the best doctor in NYC . I've known him for quite some time now and he is excellent, thorough, and a great person. For both my parents, he was a phone call away, and they didn't even go to him! He was my Doctor and I needed answers, help in decision making, help getting them to the right hospital...and he helped - he helped more over the phone in their time of need than their own doctors (they lived out of the area). I can't say enough good things - if he's taking new patients I would recommend going to him - go once and see what you think. read more

Dr. Leonard is a wonderful medical doctor. I have been a patient of his for over fifteen years. He's very conscientious, authentically, elegant, and compassionate person. He really goes the extra mile for his patients. I was referred to him by one of my co-worker who is still a patient of his; without a doubt, I referred several family members (some in the USVI) to him, whom gave him high praise about professionalism. Dr. Leonard has shown common courtesy to my family and me as well to the community in Upper East Side. His staff is very pleasant and makes one feel at ease. read more

Dr Leonard is fantastic - a 5 star doctor. But his support staff - and particularly his secretary - are terribly slow and unresponsive. I always have to follow up with them. And usually repeatedly before anything is done. I waited months for them to report my results to me and to refer me to a specialist. I'm sure they're lovely people but they always seem impatient and like they don't have time to talk/help me. It's probably just that they're understaffed but it's very frustrating. I've stuck with them so far because Dr Leonard is so good. But I may have to move on to a different doctor if it continues - the constant need to follow up with them during their limited opening hours, to get anything done, is wearing and burdensome. read more

My wife and I have been going to Dr. Leonard for about 20 years now. We would not give him up for anything. He is surely one of the finest doctors there has ever been. He epitomizes what a doctor should be: caring, concerned, always on top of the latest developments, and so forth. In addition to that, he is one of the finest human beings I have ever met (and I am soon to be 63). He is a great person and a great doctor. I wish there were more than five stars to give him. What a guy... read more