Dr. Vallabhaneni, or Dr "Vonny" as her staff and patients call her, is a great doctor. She's…read moreprofessional, courteous, and she cares about her patients. I've been going here since last spring and my sleep has improved dramatically, thanks to the treatment I received here. The staff is also great! At a recent appointment, they hooked me up with a cold bottle of water while I waited for my appointment. If you're sleepy all the time or having trouble falling asleep, get in here and see Dr Vonny! The waiting room boasts great magazines like Entertainment Weekly, Mother Jones, and Austin Woman. There's a flat-screen showing sit-coms too! My only criticism of this office is the perfume-y air-freshener they use. Way too strong!

Probably the worst experience I've had with any health provider in my life. Terrible communication…read morefrom the practice, information mishandled, and I was constantly confused on what my options were. After multiple appointments I finally asked my doctor to refer me elsewhere.

My dentist is well versed in understanding sleep issues, and based on our discussions thought I…read moremight have a breathing problem. She did a head CT that revealed a deviated septum, and referred me to Dr. Wassmuth. I was quite impressed by the kindness, courtesy, and professionalism when I first visited the office of Capitol Otolaryngology. Dr. Wassmuth examined my nose and suggested balloon sinuplasty with turbinate reduction. After much trepidation, I scheduled the surgery, which is done in-office. The process of fixing my nose didn't take all that long. The anesthesiologist, Dr. Jack Carsner, was excellent, as were all those I met in the operating room. The procedure apparently went off without a hitch, and my husband drove me home where I rested the remainder of the day. Within a day or so I was feeling much better. I am still considered to be recovering after a week, but have already experienced noticeable improvements in my breathing. My husband says my snoring was virtually gone within a day after the procedure. I've had a variety of seemingly-minor health concerns, that when put together, have led to other problems. Snoring, dry mouth, dental issues, and poor sleep quality turned out to have (at least in part) had a common root cause in breathing problems. Hopefully all will improve or resolve before very long. If you have any kind of breathing problems, including snoring and symptoms like dry mouth when you awaken, you may benefit from a visit to Dr. Wassmuth. I highly recommend his medical practice.

I recently had surgery with Dr. Wassmuth to correct my sinus issues. It was a fantastic experience…read morefrom the initial consultation through the post-op appointments. He always took the time to answer any questions I had and thoroughly explain what he was going to be doing. The procedure had minimal pain, no nasal packing, and the recovery was quick. I can breathe better now and have also noticed that I sleep better than before!

It was my great fortune to choose Dr. Daniel Slaughter as my sleep apnea doctor when my former…read moredoctor retired. Dr. Slaughter has a double board certification in both Otolaryngology and Sleep Medicine, and has over 30 years of experience. He trains other ENT doctors to use his balloon technique. If you have to have deviated septum or sinus surgery, or need help with sleep apnea, I highly recommend this physician for your treatment. He helped develop a minimally invasive technique called balloon sinuplasty. I have heard many horror stories regarding recovery from people who experienced deviated septum surgery in other ENT doctor's offices. I experienced nothing but positivity yesterday. When I arrived for surgery, from the front desk staff who greeted me and checked me in, to every single person I encountered, I felt at peace. The nurses are exceptional, especially Karen, who checked on me in the recovery room, and the nurse who stayed with me after surgery (I don't remember her name). When Karen had me prepped for surgery and walked me into the surgery room, I saw the doctor, the anesthesiologist, and at least 3 nurses, standing in a simi circle around the chair, all smiling at me, as if they were the welcoming committee! It gave me such a feeling of peace, and I knew they were going to take good care of me. Every single encounter was first class and professional. My recovery so far has been excellent, with very little bleeding, no stints in my nostrils, and only mild discomfort. I am thrilled to share my experience with everyone I can so no one has to tell another horror story about their deviated septum experience. Nancy L

An absolute waste of my time. I desperately needed the repair and a severe deviated septum. They…read morerefused to perform the procedure because I take a 81 mg aspirin, not prescribed but referred by every physician I have ever had. During which period I have had multiple joint replacements, lense replacements, donate blood etc etc and this has never been an issue ever. They also sold me allergy drops which I have yet to receive.

From beginning to end Capital ENT & Sinus Center rocks!…read more Cassie, PA, quickly assessed and made a recommendation we both agreed to. The plastic earring-back was removed within seconds. Thank-you!

It was recommended to visit this ENT clinic by my boss after having a less-than-ideal experience…read morewith another ENT last year who quickly suggested surgery, which I wasn't comfortable with. Still suffering from sinus infections, I came here for a second opinion. Dr. Wassmuth was excellent. He took the time to explain everything in detail and had a great bedside manner. I felt heard and understood, and his thorough approach made a significant difference. I highly recommend Dr. Wassmuth and this clinic for anyone seeking quality ENT care.

Dr Denman and his staff are excellent in their service. Before I went I'd fall asleep everywhere,…read morenot knowing if I had sleep apnea or narcolepsy. After an easy take home test, it was discovered that I had Sleep Apnea. The device that he recommended has been a major help in me getting a restful night's sleep and back to sanity. Thank you so much Sleep Cycle Center for helping me get back to my normal self... the person that was able to enjoy life!

From the owner: Sleep Cycle Center, in Austin and Lakeway, Texas, is all about helping patients get a good night's…read morerest. Chad Denman, DDS, and his team of sleep specialists screen, diagnose, educate, and treat snoring, sleep apnea, and other sleep disorders like insomnia. Before seeing a patient, the team of sleep specialists have them complete a health screening tool, which accurately identifies if the patient is suffering from obstructive sleep apnea (OSA). OSA is disruptive and can be fatal in some circumstances. They talk to their patients about their diagnosis and treatment choices -- like continuous positive airway pressure (CPAP) therapy, oral appliance therapy, and surgery -- then decide which would make the best choice for them. If the team needs more information to diagnose their patient's sleep problems, they use the innovative home sleep testing tool WatchPAT™ One.  They also have each patient download the SnoreLab app so that the team knows when their patients stop snoring. The patient may use a pulse oximeter, so they know if oxygen levels are staying consistent when sleeping. Lastly, the team will do a second sleep study to confirm their success. Most of the care offered by the sleep specialists at Sleep Cycle Center can be done through the telehealth app and the mail, making it easier for patients to get the help they need for their sleep disorder. Sleep Cycle Center also provides body composition analysis, nutrition counseling, and natural supplements...

I went to Dr Slaughter for sinus and allergy problems. I was amazed by the Dr and the entire team…read more They were able to determine all allergies I suffer from and prescribed drops that will cure me of them in time. For my sinus problem it looked like I would need procedures done but they but me on a nasal spray for a few months. When I went back they said I no longer needed any procedures as the spray did the work! I am so happy I went to Sinus & Snoring! They are super!

I went to Sinus & Snoring Specialists for breathing difficulty, sinus symptoms, and concerns about…read morea prior sinus surgery. In March 2023, Dr. Slaughter performed the following surgeries to resolve my issues: balloon sinuplasty, septoplasty, turbinate reduction, and rhinoplasty. After surgery, my issues were still present and I had more difficulty breathing. At my post-op appointment, Dr. Slaughter's PA documented a newly acquired nasal-valve collapse and told me to wear nasal strips (which I did not have to wear prior to surgery). After almost a year of dealing with the collapse, Dr. Slaughter performed a VivAer procedure. Although there was some improvement, I continued to have breathing and structural concerns. At my February 2024 follow-up appointment, my concerns were minimized and I was, again, told to use nasal strips. I left that appointment assuming there was nothing more that could be done and I was permanently stuck with a collapsed nasal cavity and very minimal structural support. I was also disappointed by the communication and follow-up regarding the rhinoplasty portion of my surgery. I did not feel that the specific rhinoplasty plan, including what existing structural support might be removed or replaced, was adequately discussed with me. I later sought independent ENT evaluations because my sinus headaches became too intense to ignore. Those evaluations documented reduced tip support, mobile anterior cartilage that is not secured to the nasal spine (seen in photos below), marked narrowing of the left internal and external nasal valves, and a need for further functional reconstruction with grafting. Both of these ENT's stated the graft removal is a large part of the reason for the collapse. I now have to pay $13k out of pocket to reconstruct my nose with my own rib cartilage. Due to the cost of the reconstruction, I requested a refund of the $7k I paid for surgeries with Dr. Slaughter. I requested the reimbursement via his office manager after she replied to my Yelp review (which was removed from this page) stating she was willing to discuss my issues. I thought they would be amenable to hearing my concerns but, instead of treating me like a patient with a financial burden caused by a failed surgery at his office, Dr. Slaughter had his insurance company send me a letter stating that they will not reimburse me (see photo). They issued this letter without any information regarding what the two other ENT's found when they examined me. After receiving the letter and reading the word "settlement," I checked the public records. Dr. Slaughter currently has a malpractice case open in Travis County (as of September 2026). For patients considering complex nasal surgery, revision rhinoplasty, grafting, or combined functional and cosmetic procedures, I encourage getting more than one specialist opinion, asking for a clear written surgical plan, and discussing exactly what support structures or grafts may be preserved, removed, or replaced. I also highly encourage people to seek ENT services elsewhere, unless you want to be told you need a balloon sinuplasty on all of your sinuses, a septoplasty, and turbinate reduction.

I traveled from San Antonio to Austin for my sleep study, and thanks to Lenny's unmatched bedside…read moremanner and thorough explanations, this returning patient had the best experience. He made me feel completely calm and relaxed, proving to be a very kind, highly knowledgeable, professional who is a massive asset to this facility and should be training the whole team. I hope he stays long-term, as I will absolutely be requesting Lenny for all my future sleep studies.

Communication has been a consistent issue. Phone calls are rarely answered, and messages often go…read moredays without a return call--if they're returned at all. Portal requests don't receive follow-up calls to confirm they're being addressed. I've been a patient for several years, and this has been an ongoing problem. In the past, the only way I've gotten updates was by repeatedly calling different extensions until someone happened to answer. Otherwise, I wouldn't have known my issue was being worked on. Staff are pleasant in person, but phone responsiveness and follow-through are inefficient. During a recent visit to pick up a sleep machine, the phone rang multiple times at the front desk without being answered while the receptionist remained at her computer. I've raised these concerns with my doctor on two separate occasions and was told management would be notified, but there has been no noticeable improvement.

We have had so many things so wrong with my husband's sleep treatment. His doctor went MIA being…read morethe most inexplicable and frustrating. But Joshua and his team at Heartstrong really stepped up and saved the day. My husband and I will finally be able to sleep again. Words cannot express how excited and grateful I am!!!! They really went above and beyond. AND they put up with me and all of my up-all-night frustration. Thanks, guys!!!

Alicia in the office is fantastic! She is so kind and willing to help in any way. Office is clean…read moreand brand new. Fantastic place!

Update on 5-2-26. I hadn't seen Monique since January, due…read moreto my own clumsiness tripping and breaking my clavicle, having surgery, and then breaking it again. I had a virtual visit with Monique this past week and she proved herself again!! She is truly 1 in a million. She has been traveling around giving talks about sleep issues...yes, she is that good. And again, I called the office multiple times and I have decided that leaving a message or not is my own problem, Monique is worth the hassle because I don't think there is anyone else more knowledgeable. She is truly outstanding, the best there is. Thanks! ---------------- The following was my previous review: The good: Monique. The bad: This place NEVER answers the phone. You always have to leave a message and wait, most likely until the next day. Sure can't be in a hurry if you have to work with the office staff. So you decide, I prefer to "work" thru this mess all because of Monique, like I said before, she is the best!!

Never answer the phones and when they do the expect u get the paper work to the testing office…read moreyourself for the drs orders for test