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    Daniel Drennan, MD

    1.0 (1 review)

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    13 years ago

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    Daniel Drennan - Comprehensive Pain Specialists

    Daniel Drennan - Comprehensive Pain Specialists

    3.9(27 reviews)
    0.0 mi

    Christopher Felt has the worst bedside manner I have ever experienced in a medical setting. Being a…read morechronic pain patient he makes me feel as though my conditions are nothing more than an inconvenience. I have been waiting over 3 months for a procedure and the office is claiming it is due to insurance denials. When I spoke to an imaging office, they told me the truth about the office- they don't do what is needed to get procedures and process out through insurance. All that was needed for an MRI to not come out of pocket for me was a peer to peer review and he refused to do so. When another medical office is apologizing for the treatment of your Dr based on a small ask they refused, you know you have a bad Dr. Dr Drennan is amazing. I have no issue with him he treats patients amazingly. If he would treat all patients his practice would be amazing. The ladies at the front desk are nice. They are aware the patient portal doesn't work correctly and apologize for that every time I come in. They say the drug testing is random, yet I have to leave a sample every time I come in. I take my medication as prescribed and I have had two test come back as bad. I think they using either a bad lab or bad practices sending in their samples. Be aware of th

    I have been to 5 pain speialists over the past 8 years and Dr Drennan is the first one to treat my…read morepain vs pushing drugs like the previous 4. My pain is greatly reduced and he has helped me cut my medications by 75%. I am on 25% of the drugs others gave me and the injection treatments have dramatically reduced my pain. If you want a Doctor to actually address your pain Dr Drennan is the best I've encountered.

    BoulderCentre for Orthopedics & Spine - Discovering the damage from my bike crash

    BoulderCentre for Orthopedics & Spine

    2.8(68 reviews)
    12.2 mi

    Wow. I really don't get all the negative reviews. I've had knee and shoulder surgery here. Both…read morewere very successful with full recovery and great support from the physical therapy staff. Of course, if you are going there, it's because you are hurt and getting better is not going to be comfortable. For me, the results were good and I got better much faster than I expected. In my opinion, the Boulder Centre for Orthopedics and Spine provides excellent orthopedic care and treatments in a modern, professional facility. The office staff is awesome. You do most of your check-in online in advance so there is almost no waiting. I've had zero issues calling in to reschedule appointments.

    I have no idea why this place does not have five stars. My husband and I have met with several…read moredifferent doctors at Boulder Center for Orthopedics & Spine including Dr. Master and Dr. Kramer and all have been excellent. I've had ankle surgery with Dr. Kramer and my husband has had shoulder surgery with Dr. Master. Dr. Master has also helped me with shoulder and hand problems. The doctors are knowledgeable, trustworthy, caring and listen to all questions and concerns. We highly recommend this company! My husband and I have also had a very positive experience with the physical therapists at Boulder Center for Orthopedics and Spine - specifically Holly who knows her stuff!

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    BoulderCentre for Orthopedics & Spine
    BoulderCentre for Orthopedics & Spine - BoulderCentre for Orthopedics, 4740 Pearl Parkway, Boulder, CO (303) 449-2730

    BoulderCentre for Orthopedics, 4740 Pearl Parkway, Boulder, CO (303) 449-2730

    BoulderCentre for Orthopedics & Spine

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    AVOS Dental Specialists

    AVOS Dental Specialists

    4.6(11 reviews)
    10.0 mi

    My son was referred by his orthodontist to AVOS to schedule an oral surgery appointment. Upon…read moreentering the building, we were warmly greeted by their front office staff who made our check-in seamless. As we waited, we sat comfortably in the reception area, which had a variety of refreshments and plenty of seating to pick and choose from. Shortly after, one of the surgical assistants (Pablo?) brought us into the consultation room and asked us questions on what brought us to their office. Then the assistant brought in Dr. Dustin Haupt to begin the consultation. Dr. Haupt was thorough with explaining the surgery as well as gave us ample time to go over any questions we may have for him. The patient coordinator made it easy to schedule our appointment as well as take payment too. Overall, we are confident in proceeding with my son's recommended treatment at AVOS.

    Disappointing experience. I had an appointment scheduled for an extraction with Dr. Ana. When I…read morearrived, a different surgeon was assigned to me. His name wasn't on the door or on any of the paperwork I was sent home with - it was handwritten in at the bottom of the paperwork. I had an upper molar extraction. I was told bone grafting was essential even though I didn't want an implant. I was charged $1,835. I had the same upper molar on the side of my mouth removed nine months earlier elsewhere - for $365. An attempt was made to upsell stem cell injection into my extraction site for $400 more - I declined. I was in horrific pain on the Friday before a holiday weekend so I did what I had to do and paid $1,835 for a single molar extraction. 19 days later, I returned to have my stitches removed. I didn't see the surgeon. An assistant told me that since I wasn't going to pay for an implant, there was no reason to see the surgeon and that the assistant would remove my stitches himself - he did. Then, I was told to go to the front desk where I was told that I should have been charged $1,865 instead of $1,835 so I have an outstanding balance of $30 after today's stitches removal. I stated I was not going to pay an additional $30 today. The assistant who removed my stitches (3 weeks post extraction) told me to wait another week (4 weeks total) before eating anything hard, but the paperwork I was sent home with on the extraction day said to wait only two week so I had already been eating hard food for a week per surgeon orders... Very frustrating after following all the written instructions perfectly. I will not be going back.

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    AVOS Dental Specialists
    AVOS Dental Specialists
    AVOS Dental Specialists

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    Relevare infusions of Colorado - Each patient gets a private room for their IV ketamine treatment. Comfy chair, eye shades and music to aid in your journey.

    Relevare infusions of Colorado

    5.0(6 reviews)
    8.8 mi

    I couldn't be happier with my experience at Relevare…read more Dr. Mallek is extremely competent and knowledgeable, combined with a compassionate and sincere interpersonal manner. Ketamine infusions can be disorienting and challenging, but with her and her staff, I always felt like I was in good hands. It's a wonderful contrast to many of the healthcare providers I've worked with in the past, who were either disinterested or arrogant or seemed interested only in extracting payment. The clinic is small but well appointed, which lends to the personal feeling. The infusion rooms are comfortable and private. There is frequent follow up and measurement of how one is responding to treatment. Ketamine infusions are expensive, but the rates here are competitive with all the providers I contacted in the area, and significantly cheaper than many. Overall, I would highly recommend Relevare!

    Dr. Mallek is a kind and experienced ketamine provider. I had a lot of questions and she answered…read moreall of them to my satisfaction. Her clinic is beautiful and welcoming. The ketamine infusion room is very comfortable. I enjoyed my session very much and have scheduled my next one. She has educational material available as well. Dr. Mallek personally invests a great deal of herself during the initial consultation. She's not just interested in the stats required to give her patients ketamine. She's interested in getting her patients healthy in all different areas and genuinely cares.

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    Relevare infusions of Colorado - IV therapy area
 NAD, Myers, Vitamin C, alpha lipoic acid, NAC and more

    IV therapy area NAD, Myers, Vitamin C, alpha lipoic acid, NAC and more

    Relevare infusions of Colorado - Dr. Mallek has over 10 years experience with IV ketamine and is passionate about helping you live your best life. #restoringhope

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    Dr. Mallek has over 10 years experience with IV ketamine and is passionate about helping you live your best life. #restoringhope

    Daniel Drennan, MD - anesthesiologists - Updated June 2026

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