Cancel

    Open app

    Search

    Stefan Sien, DO

    5.0 (2 reviews)
    Closed Closed

    Stefan Sien, DO Photos

    You might also consider

    Recommended Reviews - Stefan Sien, DO

    Your trust is our priority, so businesses can't pay to alter or remove their reviews. Learn more about reviews.
    Yelp app icon
    Browse more easily on the app
    Review Feed Illustration

    1 month ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    2 years ago

    Helpful 1
    Thanks 1
    Love this 0
    Oh no 0

    You might also consider

    Verify this business for free

    People searched for Internal Medicine 1,952 times last month within 15 miles of this business.

    Verify this business

    Asthma And Allergy Medical Group - Yes, that's grim and dirt in the water cooler.

    Asthma And Allergy Medical Group

    1.8(20 reviews)
    3.7 mi

    I'm giving 5 stars to the Asthma & Allergy Group in Murrieta that's run by Dr. Shams Iqbal,…read moreImmunologist because I've been a patient here for over 8 years now & I'm very happy with my ongoing treatment here!! The BEST PART has been the EXCELLENT front desk staff & medical assistants that I have had the great pleasure of interacting with the most. So HUGE SHOUT-OUTS along with my sincere gratitude to the gals: FRANCHESCA & DAISY as well as Erika, Joanna & Martha! You all have have made my regular visits so very pleasant & comfortable that I truly look forward to seeing your smiling faces & having very enlightening convos with you guys each month!!!!! I also want to give my thanks to Dr. Iqbal for his expert care & especially send my great thanks & deep appreciation to Steve Gruer, P.A. who is just wonderful, patient, well-informed, professional & always extremely kind to his patients!!! To you all - - please continue to keep up the fantastic service you provide to your patients!! I really appreciate it!

    Dealing with this medical office has been quite challenging. Dr. G is highly competent and…read moregenuinely appears to care. However, the staff is consistently unprofessional, unhelpful, and dismissive. They often fail to respond to other offices requesting necessary information. I have been waiting for a prescription approval for months, only to discover that the delay was caused by the office not sending the prescription to my pharmacy. My pharmacist has repeatedly tried to contact Francesca, but there has been no response. Additionally, the staff frequently puts calls on hold indefinitely, forcing me to hang up and call back. When I finally reach someone at the front desk, I am told that someone else will call me back, yet I never receive a follow-up. It's just awful. ...And yes - the office is pretty gross.

    Photos
    Asthma And Allergy Medical Group - Table in waiting room.

    Table in waiting room.

    Asthma And Allergy Medical Group - One of many stains.

    See all

    One of many stains.

    Deborah Layton, NP

    Deborah Layton, NP

    3.9(11 reviews)
    8.0 mi

    Deborah Layton was the best doctor I ever had in my 57 years on this earth . I saw her regularly at…read moreRancho Medical Group in Temecula. She was a great communicator and NP. Very knowledgeable and willing to listen. One day I messaged her, right after Christmas 2025. She usually gets right back to her patients, at least in my case, but in this case it was several weeks with no response so I figured maybe she was on a vacation. I was quite taken back when I found out that she had left the practice as I had just saw her a week prior to Christmas. . I never heard from her and I was pretty close to her as a patient and she knew so much about me and my medical and health needs. She helped me profoundly and I was absolutely grieved to see her go. It has been difficult to find a doctor like her. I have several conditions and a rare disease. She did not hesitate with unconventional and traditional approaches, and to listen to the patient and their needs as well as how they were feeling, to together come up with the solution that would alleviate the issues as well as provide hope for getting on a good path to overall health and well being and move forward to see what will work optimally for each of unique case. It is now April 2026 and I still am looking for a doctor that is even somewhat what Deborah Layton was.

    Deborah Layton has been a Godsend to me. She cares about her patients, is quick to answer messages…read moreand questions, and knows and supports HRT for women. She is also pro-holistic but still has a great knowledge about, and for the most part, supports western medicine. She is an excellent communicator and quick to address your needs . She doesn't hesitate to offer referrals when needed. All that to say that I love this doctor and Rancho Medical Group. I was very scared when I found out my other doctor stopped taking my medical insurance, but God had another plan and I am so glad that this happened the way that it did otherwise I would not have been introduced to this clinic, nor Dr. Deborah Layton.

    Photos
    Deborah Layton, NP
    Deborah Layton, NP

    See all

    Stefan Sien, DO - internalmed - Updated June 2026

    Loading...
    Loading...
    Loading...