Book an Appointment
Qualifications and Experience
Awards and Publications
***PLEASE ARRIVE AT LEAST 30 MINUTES PRIOR TO YOUR SCHEDULED APPOINTMENT TIME FOR PAPERWORK. YOU MAY ALSO DOWNLOAD PAPERWORK AND FILL OUT AHEAD OF TIME AT: http://www.coloradovoiceclinic.com. If you do this please arrive 10-15 minutes early.***
***Please provide your Insurance member ID# before booking an appointment with Dr. Opperman***
Dr. Opperman received a Fellowship in Laryngology and Disorders of the Voice at UCLA in Los Angeles where he studied under the direction of Gerald Berke, M.D. and performed research in laryngology, neurolaryngology and care of the professional voice. He trained under George L. Adams at the University of Minnesota where he received his Master of Science in otolaryngology and received his Doctor of Medicine at Thomas Jefferson University. A presenter, author, and recognized expert in the field of voice care and repair, you can receive no finer treatment for the professional voice than at the Colorado Voice Clinic.
***Please provide your Insurance member ID# before booking an appointment with Dr. Opperman***
Dr. Opperman PA, William "Buzz" Reifman, NP, PA attended a joint nurse practitioner/Physicians's Assistant program at the University of California at Davis and has been providing voice care and entertainment arts medicine to the Denver Community for 30 years.
Verified Patient Reviews
I saw Dr. Opperman in other visits and he is wonderful. Today I saw his PA and it was a great experience . He is very detailed oriented . Explain things very well . Took the time with me whitout rushing . The practice is not close where I live but it is worth the drive .
Interesting office. Friendly personal. Very professional.
I loved the staff!! Front desk was super friendly and professonal!! I didnt see Dr Opperman but the Dr I did see was amazing and very thorough!! Would reccomend this place for sure!!!! ????
Excellent staff. And great bedside manner. I was impressed.
I felt very safe with Dr. Buzz...
Seen on same day. Great attention to patients. Knew what I had from a mile away. Thanks Dr. O. Duch T
One of the best doctors i have been to in a while who truly care about my health
Punctual, professional and personable! All my needs were addressed. After thorough examination, Buzz was able to provide a solution to my medical problem and gave me supplemental recommendations on how to prevent another episode in the future.
Dr. Opperman was very friendly and knowledgeable regarding my sinus problems. He was able to diagnose my condition when my PCP could not.
Buzz and Dr. Opperman are the best! The voice clinic is really responsive to ZocDoc appointments and usually confirm them quickly. Their staff are very nice and were really understanding when I got lost and made it late. Particularly if you are a vocalist, these guys have crazy experience. Buzz knows every vocalist in the book and works with artists at Red Rocks! These guys know what they're doing and are nice and talkative! Thank you!
Wonderful visit. Dr. Opperman is so knowledgeable and thorough, I left feeling very hopeful and clear about what to do going forward.
I met with an associate. Everyone in the office was friendly and efficient.
Good experience. Found out I need my tonsils removed, which was expected. Feel like I was well informed. Nice and personable staff!
We are German tourists visiting and were incredibly lucky to run into Dr. Opperman. His service was outstanding. He took all the time needed for diagnosis and treatment of my son, explained every step and gave us great support and comfort. He even kept on asking how my son was via text in the evening and supplied us with great advice. He turned a crisis into an amazing experience. THANK YOU!
fantastic. totally professional and thorough
Very professional and courteous. The doctor was very thorough and knowledgable.
I have been coughing since November. I went to many docs and nothing stopped it. So I made this appointment. I mostly worked with Buzz the PA who is very knowledgable. He took a video down my nose and into my throat. Then the only time I saw the doc was when he quickly went through the video. He said what Buzz already told me. My reflux is terrible and it burned the crisp out of my esophagus. Upping my Nexium and Zantac is starting to help.
He was prompt, professional, and attentive. Most importantly, I could clearly see his clinical expertise in the way he spoke, his presence, and his recommendations.
Wonderful and friendly staff! The Dr. Even took the time to help me schedule appointments with a physical therapist and got me in for testing with a 3rd party right away! Would recommend them in a heartbeat!
Dr. Opperman was very nice. I had the feeling of being rushed a little, and didn't feel that my sinus pressure concerns were addressed very well. My concerns regarding my throat were addressed ok, but again I feel that I had more to say. The response "the CT Scan will tell us everything" may be accurate, but I feel it's important to let the patient speak their mind regarding their condition. I did not receive a call today to set up the CT-Scan appointment, as I expected.
I was greeted with a smile from Chris at the front desk when I walked through the door. Chris is extremely pleasant and a breath of fresh air. Buzz is a great conversationalist and has a knack for putting you at ease before... "he takes a look" :-) Dr. Opperman took time to explain exactly what the scope showed, and gave explicit instructions on how to get my voice back to normal. A great group of professionals. Please allow me to say thank you for making this such a pleasant experience!
Saw Dr Reifman who was great. Very professional. Explained the procedure and the results very clearly. Did a "scoping" that was painless. Would go back if ever needed for ENT problems.
I'm very thankful the staff directed me towards the right direction while being extremely sick and went the extra mile to make sure my urgent needs were brought to attention. I highly recommend.
Amazing. Great bedside manner. Would highly recommend.
Great Doctor truly cares about your health.
I seen both Buzz and Dr Oppermann. They were both great and found the root of my problem and had a game plan immediately. I would defiantly recommend them to everybody.
I thought Buzz was very friendly and positive, and Dr Opperman was a little more serious and straight forward. Both seemed to get me in-n-out without a fuss, and gave me the support I needed. The only thing I didnt like was the lady on the phone(front office staff), she was kind of a bully to me and wishy-washy on my appointment needs and whether or not they would take me as a patient as my insurances changed over the year after saying yes they would. Weird.
Great place and very helpful
I was taken care by Dr.Buzz. Great person. Excellent knowledge in his area and very caring. I will recommend him 100%
He was very through and explained everything to me so that I could understand completely. Very Friendly and kind. Thank you
Great doctor but waiting time was definitely to much for me . About 35 min.
Excellent! He seems to have pinpointed my hearing problem & feels that after the infection is cleared up, all will be well.
Very knowledgeable, if it wasn't for him I would have been seeing all kinds of doctors trying to find out what my problem was. He is a good Dr, would recommend him
I had to fill out a lot of paperwork so that effected my wait time, probably only 10 minutes after paperwork was done. Dr. David asked a lot of questions to try and figure out my issue. After questions and a thorough exam of my nasal passages it was determined I must have broken my nose when I was small and as I grew it effected my septum to were my left nostril was 80% blocked and right side not a whole lot better. I need a simple surgery and I'm actually looking forward to getting it done!
Dr. Opperman was very thorough and helpful. He spent as much time with me as needed and made sure to answer all my questions. I have seen many doctors for my sinus issue and he was the first one who took time listen and clearly establish a course of treatment to correct the problem. I left his office an hour ago and have already referred my mother and a friend to doctor Opperman, he is a fantastic doctor.
Great and very thurough visit!
Excellent visit! He and Buzz are fantastic. They have state of the art video equipment, really review your case, and know singers. Highly recommended!
Dr Opperman was wonderful during the appointment and my surgery! I couldn't have asked for a better Doc!
I saw Buzz, not DR. Opperman. He was very pleasant.
Very kind and determined to help!
I highly recommend Doctor David Opperman. I am glad I went to his office with my problem. He is kind and very professional. I had to wait a little bit just because I arrived an hour earlier than my appointment was.
Met with Buzz today. He was incredibly personable and made me feel very comfortable. His bedside manner was impeccable even with a little mishap on my part. Very knowledgeable and shared his preliminary findings and thoughts out loud with me. A quick pop in from Dr. Opperman was nice too. Thanks!
Great! Strongly recommend. Personable, knowledgeable, professional. A long wait, but worth it.
Fantastic! Super friendly office manager. Easy and efficient paperwork. Promptly seen at scheduled time. Excellent Dr. Insight. Highly recommend!
I was greatful to get an appointment with such short notice! Unheard of ! The visit was professional, the office was clean, people were friendly and professional.
I liked Dr. Opperman from the moment I first met him. His skills and experience are impressive and his ability to quickly adduce my condition and suggest a positive solution were amazing. I am looking forward to a long term relationship with Dr. Opperman and his office.
Dr. Opperman stands out among his peers for his outstanding bedside manners and empathy. The office is beautiful. Stress less experience indeed. I would highly recommend him for all voice related issues and some general ENT problems as well.
He seemed to be very helpful and kind.
The doctor did not have my appointment down but they worked me into the schedule. Other than that all was fine
Great. Efficient and informative. Will return!
Exactly what I want out of a doctor. Kind, concerned, professional, knowledgeable, direct. I would definitely recommend going to see him again.
He took care of me right away I had been seeing a dr for 3 years complaining of my sinuses and it got so bad I ended up in emergency it wasn't till I seen him that he found out I had a sever sinus infection and cleared it up I could of died I was so sick and down for so long and he just took me in his hands and saved me I could ask for any better
This is the best ENT doctor I've seen and I have seen several all over the country.
Fantastic experience. He was the first doctor to try and understand why I am having chronic sinus infections instead of just treating my current symptoms.
initial visit made me hopeful that I could finally have my allergy symptoms under control.
Very pleased. I felt comfortable and welcome. The facility was clean.