Important Notice. Dr. Powers has closed the office permanently due to a health condition. Your ENT needs may be well cared for by: Dr. Dan Landes and Dr. John Mason at Charlottesville ENT: 434-243-9415; UVA Otolaryngology: 434-924-5700; If you require assistance with medical records or any billing issues, please contact via the Patient Portal or email info@entdoc.com..