Welcome to Kaplan Sinus Relief. A certified Otolaryngologist, or ENT, Dr. Kaplan practices at the Houston Sinus Center, located at 4101 Greenbriar Street in Houston, Texas. He is also affiliated with St. Luke’s Episcopal Hospital, The Methodist Hospital, Diagnostic Center Hospital, Texas Children’s Hospital, and Park Plaza Hospital. Dr. Kaplan sees patients of all ages, and is particularly accomplished in the treatment of chronic sinusitis, voice disorders, and obstructive sleep apnea (OSA). read full review »