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    Gregory H. Tchejeyan, MD

    4.4 (23 reviews)
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    2 years ago

    Great doctor. [[HIGHLIGHT]]Great office staff.[[ENDHIGHLIGHT]] Very clean office . Very impressed. First time going.

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    2 years ago

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    Gregory T.

    Thank you for your kind words. Your success is our happiness!

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    Thanks John for nice words. Happy you’re back doing what you love!!

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    4 years ago

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    Ask the Community - Gregory H. Tchejeyan, MD

    Review Highlights - Gregory H. Tchejeyan, MD

    Tchejeyan replaced both my knees two months apart between August and November of 2022.

    Mentioned in 12 reviews

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    Ventura Orthopedics - Thousand Oaks - Ventura Orthopedics - Urgent Ortho Thousand Oaks Location Building Photo

    Ventura Orthopedics - Thousand Oaks

    2.7(117 reviews)
    0.2 mi

    The doctor was good. The amount of time I had to wait to go in was absurd. I had to wait an hour…read moreto get into a room and still had to wait.

    After having trouble with my knee for a while and the pain and swelling increasing, Dear Hubby…read moresuggested UrgentOrtho at Ventura Orthopedics. We went in on their Saturday hours, which are limited, but a blessing to bot have to take time off work. They do have a smaller staff available on Saturday, so the wait to see various personnel took some extra time. After filing out personal and medical history on a tablet (with a rather clunky interface), I was sent up to the second floor. There, in due course, x-rays were taken by a friendly, experienced tech. Then a waiting period in an exam room ensued with DH and I making small talk about having health challenges during the holidays. He's been to the main practice to see an ankle specialist in the past. That's how he knew about the urgent care part of the practice. When the doctor came in, she was very upbeat. She reported the good news that I don't have arthritis in the knee. She then did a physical exam on the swollen, tender joint. She said that an MRI would be the next step, along with physical therapy. She gave a thumbs up to the copper-infused compression sleeve that I'd ordered online. Compression, icing, and limited heating, plus a new type of anti-inflammatory were all recommendations she made. It took several days for the MRI referral to come through / approval from insurance. The practice kept me informed with texts, which I appreciate. After the MRI I will go back for a full diagnostic update. So far I've been pleased with the care and communication / follow up with this practice.

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    Ventura Orthopedics - Thousand Oaks - Daniel Davis!

    Daniel Davis!

    Ventura Orthopedics - Thousand Oaks
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    Sumit H Rana, MD - Robotic-assisted Total Knee Replacement Right knee, outpatient

    Sumit H Rana, MD

    4.9(39 reviews)
    2.5 mi

    Exceptional Experience & Recovery Procedure: Outpatient…read moreRobotic 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 total hip replacement of my left hip just over 8 weeks ago. I scheduled this surgury with Dr…read moreRana at the Tarzana Center for Orthopedic Specialists, so I was in and out in about 7 hours total. I cant recommend Dr Rana and the support staff highly enough. From the moment I walked in I was greeted and taken care of by caring professionals. The surgery went smoothly and after about 2 hours in recovery I was on my way home. Dr. Rana and his team were very efficient and thorough with timely pre-op information, as well as explainations of what to expect with the surgery and the recovery. He is both a highly skilled surgeon, and a caring human being. I have little to no pain after 8 weeks and my mobility is very good; walking, climbing stairs, traversing irregular terrain, beach sand, and working around my property. I am back to playing pickleball a few times a week without any soreness or swelling, although I will admit I am playing a bit more conservatively for a while to be sure I do no damage to his fine work! I consider this proceedure to be a total success all owing to Dr Rana's skill and professionalism.

    Gregory H. Tchejeyan, MD - sportsmed - Updated August 2026

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