1. Ryan Peterson, MD

    1. Ryan Peterson, MD

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    Lancaster, CA

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    Ryan Peterson, MD

    5.0 (2 reviews)
    Closed 9:00 am - 5:00 pm

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    7 years ago

    Amazing pain management specialist. Specializing in addiction medicine as well as pain management procedures.

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    6 years ago

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    Advanced Pain Management - website

    Advanced Pain Management

    1.9(14 reviews)
    3.0 mi

    I had a The procedure RFA on my back .Was suppose to go back two weeks later for the other side …read more I was having a lot of pain worse then before the abulation .Called Dr Grewal like couple of days later to let him know I was hurting .He told me to take my meds and give it two weeks. I gave it one month and went to see him .All he was worried about was me being scheduled for the other side .I was suppose to have it 2 weeks after the first one.I kept telling him I was hurting and I shouldn't be . He was just interested in the insurance payment . Does not care about his patients just the money.

    I have been going to this Dr. and office for about 15 years. The Dr. and staff are always very…read morepleasant and I have never had a negative experience of any kind. I am puzzled by the bad reviews I have been reading, so I thought I should give a review about my own experience there. The radio frequency procedure helps me greatly with my back pain and mobility. It has allowed me to be more mobile and take daily walks, which I couldn't do before. I am so thankful for Dr. Grewal, Dr. Adolfo Salcido, Dr. Lika Rosette, and Dr.Kosla, not sure if I spelled them all correctly. They are always kind, helpful, caring, friendly, explain everything thoroughly so I understand everything, and provide excellent sedation during the procedure... I forgot the anesthesiologists name, but she is super kind. The nurses and staff are always nice as well. I can't think of any negative experience I have had, or witnessed while I was in the office. I would advise a person considering going to this office, to try it out and see if it is to their liking, and then make their decision on whether this doctor meets their needs and helps them.

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    Antelope Valley Surgical Institute

    Antelope Valley Surgical Institute

    4.8(9 reviews)
    3.0 mi

    the staff are friendly the facilities clean but it takes forever to get things moving and to get…read morepaperwork filled out so you can leave. After being there for four hours I'd had enough and I walked out. at last they called me on my way home told me to come back and pick up my paperwork instructions on it I got back there with the paperwork with no instructions on it so Laura the director there really needs to look at what she's got going I don't like it. She constantly yelled at the other nurses and blamed them for things I did. Plus i had to go back a third time when they told me so I was supposed to be wearing a surgery brace that they had given me but hadn't given me. This took from 5:30am to 4pm.

    Dr. Nasser has performed dozens of facet blocks and other injections in my neck and back at this…read moreamazing facility!!! I had my Pain Pump installed at the old location and have been to the new location 5-6 times for injections and most recently to double check my pain pump after a fall. The nursing staff are all amazing and the nurses in the Operating Room, whom I have known and been their patient since 2008, and they almost all know me by name any time that I have to get something done at AVSI!!!! Facilities are always extremely clean and well maintained!!! I love that I have a surgical facility where I can relax and trust that everything is going to be fine and as a person with high anxiety they make me feel right at home in the O.R.!!!

    High Desert Gastroenterology

    High Desert Gastroenterology

    2.2(34 reviews)
    3.0 mi

    High Desert Gastroenterology, Advanced Endoscopy and Pain, or whatever they change their name to…read morenext, this place SUCKS!! Overbooked appointments, Rude front office staff, RUDE back office staff, hours (Yes, HOURS!) long wait, and excuses out the window! Appointment scheduled for 1pm. Got a call at 10am, a cancelled appointment! If I can get there by 11, I would be processed. When I was standing to be checked in, receptionist answered phone. Person on phone was told 'if you don't check in within 15 minutes of your appointment time, we cancel and you will need to reschedule!' Ok, everything timed? Gave my info & cards, to receptionist, given back. Receptionist said 'have a seat and we'll call you back in a few.' I asked her if there were any more chairs? 9 occupied chairs and 15 people standing! Covid protocol. What? You can't bring more chairs, but it's ok to have lobby packed with standing people? Ok! Finally called back. IV rig inserted in right hand, told it would be a few minutes. And I sat. People out for recovery, people in for procedure. People called back from lobby. It is now almost 2.5 hours past my original appointment time of 1pm. I finally got the attention of nurse (?) and asked how much longer? 2 more people ahead of you. WHAT? Was told, Each procedure 30-45 minutes, clean up equipment and room, add another 15-30 minutes. 2 more people, fastest amount of time, waiting another 2-3 hours before I'm taken back! Nurse confirms time line. NO! You have the nerve to call me and ask me to come in 2 hours early, then 2.5 hours past my original appointment time and you have the nerve to tell me it could be another 2-3 hours? Take this IV out immediately! Bunch of Bovine Excrement excuses! Either you remove it or I will and I started pulling tape and left!! The next day, Victor calls to see how I'm feeling after the procedure? What procedure? I never had the procedure! Victor had no idea, me walking out was not in my chart! I've got a new appointment in Valencia! Filed complaint with insurance company!

    Unbelievable, husband had a colonoscopy scheduled today. Arrived around 9:45am! Didn't even call…read morehim back until after 12:00pm! He sat in pre-op over an hour! Still sitting waiting for him to come out! Absolute unacceptable! It's now 2:21pm still waiting! Seriously this place doesn't even deserve 1star! This is not a reflection on Dr. Pruthi. This is a scheduling issue. Scheduling patients so close together without adding time in between Incase complications come up is a huge error on their part.

    Ryan Peterson, MD - painmanagement - Updated July 2026

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