Dmitry Karayev, M.D.
“The most caring, thorough doctor in Los Angeles. I traveled from South Dakota to see Dr. Karayev, and he was worth the travel. Seeing any other doctor is a waste of time. Bless you Dr. Karayev.”
-Kathleen Amos


Arash A. Horizon, M.D.

“I have the most amazing rheumatologist: Dr. Arash Horizon,” Sarah told Medscape. “I am a 52-year-old woman with rheumatoid arthritis (RA) and lupus. As a patient with disabling, complex, chronic illness, I continue to have hope because Dr. Horizon knows me intimately, listens and responds to my concerns, goes the extra mile to provide paperwork I need for disability claims and help with funding for infusions and medications, and always has a new treatment option to suggest when one is not effective.” It is not easy for busy physicians to invest so much time, energy, and compassion in every patient, but it changes lives in amazing ways, said Sarah.
“Dr. Arash Horizon literally saved my life.”
– Sarah, RA, lupus, and cerebritis patient


“Dr. Horizon has been great. I’ve seen 8 different doctors this year and he was the only one to figure out what was wrong with me. He is very busy so scheduling is difficult but I highly recommend him.”
-J.N.


“I been treated by Dr. Horizon for over 6 years. From day one, he was able to solve any and problems i raised and has at the time. Since than, he watch my health and make sure that as i get older, i will not get my health in any risk.
I can’t thank enough to Dr. Horizon for keep me healthy.
Re all those negative reviews on yelp, i think you eather work for a compititors or just not satisfied patient. In medical it is no gaurenty. If from whatever reason Dr. Horizon wasn’t able to help you, i’m sure that he didn’t make your health condition worst. However, for no reason, you hurt his business with your negative review.
You should remove your review or give him better rate as he done all what he could for you. I wish you all the best and better health.”
-Dava A.


“I have always had a great experience with Dr. Horizon and his staff. Yes, the office can be busy at times and when you call to ask a question or schedule an appointment there is often a wait, but I also know this is common in most medical practices. In-person I never have found the office overcrowded or hectic at all. Dr. Horizon generally spends quite a bit of time with me and is very thorough, patient, and compassionate.

I went to Dr. Horizon after years of auto-immune issues that no-one could diagnose, and my other rheumatologist was calling chronic fatigue and secondary dysautonomia. Dr. Horizon immediately picked up on clues that I had been trying to point out to the previous doctor, and he took xrays which showed definite inflammatory damage. He ran labs that supported his diagnosis and started me on a medication that has helped me a lot. He also has treated my husband for familial psoriatic arthritis, with a medication he just took for a few months, and then stopped once the labs showed improvement. No side-effects, and his symptoms are completely gone. His siblings have deformed hands and are in a lot of pain, but my husband won’t have to go through that now, thanks to Dr. Horizon.

I am an RN and Dr. Horizon has always taken the time to review his rationale with me and has only seemed rushed during one appointment, which was a quick follow-up. Otherwise he has taken quite a bit of time with me (more than most any other doctors I have ever seen) and is so comprehensive and clear. I am so grateful for his care and knowledge, insight and wisdom. I also appreciate his back office staff who are always friendly and kind, and the front office even asked me the other day if I would like a bottle of water when I checked in for my appointment. They have transitioned to all electronic signatures, which makes checking in a breeze.”
-Elizabeth F.


Benjamin Kretzmann, M.D.
“This is the place for the solution to any joint, bone, muscle or arthritis problem. Dr. Benjamin Kretzmann is a true professional. He is very knowledgeable. He takes his time to understand the problems and offers solutions, both risks and benefits. He answers all questions and takes his time answering them. The office is immaculate. A patient is greeted immediately and helped with the myriad of forms.”
-Katy K.


Dr. Kretzmann is hands down the nicest doctor I have ever been to. It was so refreshing to have a doctor that really cares. He answered my questions before I even asked them. He is incredibly knowledgeable. I can’t speak high enough about him. He was so thorough and guided me in my options. Go see him!!
-Kimberly P


Dr. Kretzmann is so knowledgeable and very down-to-earth; he listened to all my venting concerns and after talking and then taking X-rays, he went over the x-rays with me – he then drained my knee of a little fluid and injected it for pain! He is, by far, the absolute BEST! That being said, I felt very comfortable with him! …OMG! I am so very glad, happy, relieved that I found him! Thank God and Thank you so much Dr. Kretzmann! Why can’t there be more doctors just like you!
-Elizabeth L