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Dr. Gregory Tchejeyan, MD

Dr. Gregory Tchejeyan, MD

Orthopedic Surgery*
30+ years of experience

Dr. Gregory Tchejeyan, MD is an orthopedic surgeon in Thousand Oaks, CA and has over 30 years of experience in the medical field. Dr. Tchejeyan has extensive experience in Hip & Pelvic Surgery and Knee & Lower Limb Surgery. He graduated from University of Southern California Keck School of Medicine in 1994. He is affiliated with Los Robles Regional Medical Center. He is accepting new patients and telehealth appointments.

3 Star Rating
Based on 32 reviews 3 Star Rating (32 reviews)

Locations

Tchejeyan Orthopaedic & Sports Medicine

Tchejeyan Orthopaedic & Sports Medicine250 Lombard St Ste 1 Thousand Oaks, CA 91360
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Hospital Highlight

Dr. Tchejeyan is affiliated with Los Robles Regional Medical Center Thousand Oaks, a highly rated and top awarded hospital for orthopedic surgery.

At a Glance

  • Area of ExpertiseDr. Tchejeyan specializes in the area of Orthopedic Surgery. See board certifications
  • Friendly StaffPatients said the staff was friendly. See reviews
  • Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top HospitalAmerica’s 100 Best Hospitals for Joint Replacement Award™ See hospitals

More Orthopedic Surgery Specialists at Los Robles Regional Medical Center

Experience Check

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Dr. Tchejeyan's Reviews

Likelihood to recommend Dr. Tchejeyan

3.0
32 ratings, 16 with a written review
5 star
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4 star
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3 star
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2 star
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1 star
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He is a very caring Doctor. Dr. Tchejeyan takes the time and really listens to the patients concerns. The follow up appt.’s were excellent as well. Not to mention my full knee replacement surgery was done with precision and perfection. Also his staff were super nice and Dr. T’s PA was also very nice, professional and super helpful. I highly recommend this Doctor.
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 other person found this helpful
Helpful
Michelle L. – Jun 15, 2024
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Horrible
Worst experience ever. Gaslighting me at every moment because he complained about my insurance. Did not believe my shoulder was dislocated. After surgery, he referred me to pain management and refused another MRI. I switched doctors, got an MRI after and had two tears in my shoulder. After Gregory’s surgery, I left the hospital in a loose cloth sling and the nurse put on my pillow sling without the attachment. Gregory didn’t take my call when the sales rep came to my house a week after surgery and to put the sling attachment on, causing extreme pain. He was so condescending, and eventually told me my pain was nothing compared to cancer survivors. My mom had cancer and that was when I left his practice and switched doctors. Can just go on and on..
What went well
  • Appointment scheduling
  • Staff friendliness
What could be improved
  • I didn't feel respected
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
  • Long wait times
1 other person found this helpful
Helpful
NA – Sep 11, 2023
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I love this doctor! He performed surgery on my shoulder years ago and I am still happy with the results. Now I am seeing him for my knees. He always takes his time and listens to everything I say.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 other person found this helpful
Helpful
Kim Hafferty – Sep 18, 2021
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Dr. T MISDIAGNOSED me for months. Initially, my ankle was fractured after a fall. Immediately, I experienced pain in my knee. An x-ray was done on my knee but Dr T ASSURED me there were no fractures. He ordered a Knee Walker for me since my ankle was in a cast. Tried it once but the pressure on my knee was excruciating! As my ankle was healing my knee was getting worse. DrT ordered PT with express instructions to exercise my knee by putting a bag of rice directly on it while exercising. Also wanted me to ride a stationary bike. Even with a high threshold of pain, I knew SOMETHING WAS WRONG. I refused to do the prescribed exercises and requested for the SECOND TIME to have an MRI. Dr. T refused & reiterated that NOTHING WAS WRONG AND TO JUST “GUT IT OUT.” After 3 more weeks of pain, I told DrT to order an MRI or I was going to another doctor. The MRI was done and MY KNEE WAS FRACTURED IN TWO PLACES! Dr. T said it was an oversight & never apologized. WORST DOCTOR EVER!
What went well
  • Staff friendliness
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
6 others found this helpful
Helpful
Miss Diagnosed – Nov 13, 2020
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I have had shoulder surgery last year and this summer had a hip replacement and both surgeries were very successful. I would recommend Dr Tchejeyan
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Paule’ – Sep 26, 2020
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You CAN find a doctor with a better bed side manner and a more efficient appointment system (as the time in the waiting room can be far too long)... but you will not find a better surgeon. Dr. Tchejeyan replaced both my knees and one hip years ago and the outcome has been remarkably positive.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
4 others found this helpful
Helpful
Jul 24, 2019
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I had a full left hip replacement in March 2017. I am still in chronic pain. This doctor showed no compassion - almost two years later, I am still seeking a pain management doctor. Billing was also an issue that took quite a bit of time to resolve.
What went well
  • Office environment
  • Appointment scheduling
  • Staff friendliness
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
5 others found this helpful
Helpful
Jan 05, 2019
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He has taken care of my wife and I for a few years. I don't think there are many better.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
4 others found this helpful
Helpful
John Dobel in Thousand Oaks CA – Mar 13, 2018
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Booking an appointment with Dr. T wasnt a problem. His receptionist was kind, but Dr. T came off very arrogant. He didnt want to help me, and explained that my condition had a lot to do with my asian background. I felt emotionally hurt with every word he said. He is extremely unprofessional and if his words are a reflection of how he practices, he will be sued until he's begging on the streets.
What went well
  • Office environment
  • Appointment scheduling
  • Staff friendliness
  • Appointment wasn't rushed
  • Wait times
What could be improved
  • Didn't listen or answer questions
  • Didn't trust the provider's decisions
4 others found this helpful
Helpful
Kai ho in Thousand oaks, CA – Nov 15, 2017
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Dr T did a bilateral knee replacement on me 5 years ago and I am still going strong! It's still the best medical decision I have ever made. Dr T did n excellent job that has left me problem free since the surgery.. He is an excellent technician and works fast in surgery to keep his patients infection free.. My husband ended up having his knee replaced and has said that the surgery helped his back also.. He of course had it done by Dr T.......
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
5 others found this helpful
Helpful
Candi in Thousand Oaks, CA – May 30, 2017
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Dr. T performed full left hip replacement on me in April 2016. The surgery was a success, recovery went as he had predicted. Less than year later I am fully active and back doing things I couldn't for over 3 years. He is a superior technician at what he does. I highly recommend him for this type of surgery.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
2 others found this helpful
Helpful
mike morman in newbury park, CA – Jan 25, 2017
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I went to 2nd, 3rd, 4th opinions before deciding on who would perform my hip replacement and I have absolutely no regrets. Dr. T, the office staff, TOSH, and all involved made this an exceptional experience. When my other hip needs to be done, or my current parts wear out, I'll be coming back! Many thanks to Dr. T for helping to make me pain free!
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 others found this helpful
Helpful
Anita S in Newbury Park, CA – Nov 30, 2016
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I never saw the Dr. After waiting one full hour in the lobby and another 30 minutes in the exam room I left. When I asked the front office how much longer the wait will be, I was told they would look into it but they instead continued with a personal conversation. When I left I was never apologized to for the inconvenience and complete disrespect for my time. My frustrations could have been completely eliminated had the office staff been courteous enough to let me know he was running in advance.
What went well
No results
What could be improved
  • Staff wasn't friendly
  • Long wait times
5 others found this helpful
Helpful
Thousand Oaks, CA – Nov 17, 2016
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He is very caring and listens to all you have to say. I fracture my femur and had to have a rod placed in my right leg. All went well. He was thorough in his explanations of why I needed the rod and showed me X-rays to explain the proceedure. I would recommend him to family and friends.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
3 others found this helpful
Helpful
arily in Newbury Park, CA – Sep 08, 2016
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Outstanding doctor! Knows his stuff.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Brent Davis in Thousand Oaks, CA – Jun 06, 2016
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Dr. Tchejeyan is a wonderful doctor. I found him to be compassionate, good communicator, and thorough follow up. He replaced two knees for me. I've recommended him to several people who need an orthopedic surgeon.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
4 others found this helpful
Helpful
Barbara E. in Agoura Hills, CA – Jan 31, 2016
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About Me

care philosophy

Dr. Tchejeyan believes in:*Extraordinary patient experience*Easy access to appointment*Greeted by friendly staff*Patients spend quality time with the physician*Extremely high percentage of our patients would recommend us to family members or friends*Dedicated...read more

biography

Gregory H. Tchejeyan, MD is committed to excellence by pledging to provide the highest quality of orthopaedic care possible, while utilizing the latest technological and innovative advancements. Along with a solid base, in general orthopaedics...read more
  • Orthopedic Surgery

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Insall Scott Kelly Institute For Adult Reconstruction And Sports Medicine - Beth Israel Medical Center

    Fellowship Hospital
  • Los Angeles County Medical Center Department Of Orthopaedic Surgery

    Residency Hospital
  • Los Angeles County Medical Center Department Of Orthopaedic Surgery

    Internship Hospital
  • University Of Southern California Keck School Of Medicine

    Medical School, 1994
American Board of Medical Specialties®
American Board of Orthopaedic Surgery®
Orthopedic Surgery
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.
  • English

  • Armenian

  • Spanish

Affiliated Hospitals

  • Los Robles Regional Medical Center

    215 W Janss Rd
    Thousand Oaks, CA 91360
    Recipient of 46
    hospital awards

    America’s 50 Best Hospitals for Surgical Excellence Award™ (2025, 2024, 2023)

    Superior clinical outcomes in knee and hip replacement

    America’s 100 Best Hospitals for Joint Replacement Award™ (2025, 2024, 2023)

    Superior clinical outcomes in knee and hip replacement

    View all awards

    How patients felt about the care they received at this hospital.

    82%
    Patients said they were given information about recovering at home

    2% lower than the national average

    75%
    Patients said that nurses always listened to them and explained things well
    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality