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    O'brien Walter R MD

    5.0 (1 review)

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    16 years ago

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    Sumit H Rana, MD - Robotic-assisted Total Knee Replacement Right knee, outpatient

    Sumit H Rana, MD

    4.9(38 reviews)
    10.8 km

    In 2025 I underwent total knee replacement surgery with Dr. Rana and had an outstanding experience…read more I researched many surgeons and chose him because he was the most highly recommended and he truly lived up to it. His skill, experience, and attention to detail are exceptional, and he has a cheerful, reassuring bedside manner. What impressed me most was how attentive he was after surgery, personally following up with me multiple times and genuinely caring about my recovery. The office staff and surgical team were excellent, and my surgery at Tarzana Hospital was a great experience. I am extremely grateful for the results of both surgeries and would highly recommend Dr. Rana to anyone considering knee replacement.

    I am officially six weeks out from a full hip replacement performed by Dr. Rana and his team, and…read moreif I could give more stars, I absolutely would. This has been one of the best decisions of my life. I'm a 43-year-old active male with a family history of hip issues. When I first met Dr. Rana and explained the two years of intense pain I had been dealing with, even during simple tasks like tying my shoes, he laid out my options with direct honesty, which I truly appreciated. Within 12 hours of agreeing to move forward with surgery, his team reached out, including a wonderful coordinator named Freddie. She walked me through every step of the process in detail and helped ease any nerves I had going into the procedure. Surgery day was a great experience. The entire staff was professional, supportive, and made everything feel seamless. Now, just six weeks later, I am pain-free and focused on rebuilding my strength so I can get back to doing the things I love. I cannot thank Dr. Rana enough for the impact he has had on my life. Truly grateful. Thank you.

    Glenn D Cohen, MD - Removable cast

    Glenn D Cohen, MD

    4.5(106 reviews)
    10.8 km

    Dr. Cohen spent a lot of time with me, and he put my mind at ease after a cut on my fingers. I had…read moreto pay out of pocket (and it's expensive), but it is worth it. He got me in last minute, and everyone in his office was punctual and nice. I am thankful for Dr. Cohen.

    The front desk receptionist needs a serious lesson in professionalism and basic courtesy. She is…read morelike a robot. A doctor's office should feel welcoming, respectful, and empathetic not like you're inconveniencing someone simply by being there. The front desk is the first point of contact for patients and families, and the way people are spoken to matters. There is no reason for a receptionist to come across as rude, dismissive, or entitled. You do not own the office, and treating people with kindness and respect is a basic part of working in a healthcare environment. What makes it even more disappointing is seeing the tone of some of the responses to reviews on this page. They certainly do not give the impression of a warm, patient-centered medical practice. People coming into a doctor's office may already be stressed, nervous, in pain, or dealing with difficult circumstances. A little empathy and professionalism at the front desk goes a long way.

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    Glenn D Cohen, MD - Our amazing patient, Andre Carter, Former Professional Football Player and now the Defensive Line Coach for the Miami Dolphins

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    A couple of days after the accident in 2011.

    Center for Orthopaedic Specialists - Dr. Sumit Rana

    Center for Orthopaedic Specialists

    4.2(41 reviews)
    9.8 km

    Exceptional Experience & Recovery with Dr. Sumit H. Rana…read moreProcedure: Outpatient Robotic Total Knee Replacement (Subvastus Approach) I can't say enough good things about my experience with Dr. Sumit H. Rana and his team. Before going into my robotic total knee replacement, I had heard plenty of stories about how grueling and difficult knee recovery can be. While I know everyone's experience is different, my recovery has been remarkably smooth. Whether I was just incredibly fortunate or benefited from choosing the right surgeon and technique, my results exceeded my expectations. The Surgery Experience The procedure was performed as an outpatient surgery at a brand-new surgical center. From start to finish, the entire process was quick, seamless, and easy. The nursing and support staff were outstanding--friendly, attentive, and genuinely helpful in keeping me comfortable and informed. Dr. Rana's surgical precision was evident right away: the incision was extremely neat, and as it continues to heal, there is almost no visible scar left. Recovery & Outcome My post-surgery pain was minimal and lasted for only a very limited window. I had great range of motion straight out of surgery, was ditching the cane and walking on my own within a week and have been hitting recovery milestones well ahead of standard timelines ever since. Recommendation During my rehabilitation, I mentioned Dr. Rana to my physical therapy team, and they told me that they always see great outcomes and rapid progress from his patients. In hindsight, although I of course did my own research, I probably should have consulted a PT before choosing my surgeon! If you are considering a robotic knee replacement, especially via the subvastus approach, I cannot recommend Dr. Rana highly enough. He and his team gave me my mobility back faster and easier than I ever thought possible.

    I had an appointment for trigger-finger surgery of my left hand. Dr. Kevin Nadel's Surgery…read moreScheduling Coordinator, Tammy Torres, was very prompt in contacting me to schedule the surgery. Ms. Torres was very professional, patient, and understanding of my needs. Furthermore, Ms. Torres provided me with exemplary service. Her work ethic is what all medical personnel should aspire to. I highly recommend Providence Center for Orthopaedic Specialists.

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    O'brien Walter R MD - orthopedists - Updated October 2026

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