Deprived of a good night’s sleep? Call Now! 801-432-8690

Utah Sleep and Pulmonary Specialists | 9103 South 1300 West | Suite 103 | West Jordan, UT 84088
Phone: 801-432-8690       Fax: 801-432-8681

Kathleen Pfeffer, MDKathleen Pfeffer, M.D. is our Pediatric Sleep & Pulmonary Specialist. She became interested in pediatric sleep medicine as a way to understand her own daughter’s difficulties sleeping. She created the Pediatric Sleep Clinic and Sleep Laboratory at Primary Children’s Medical Center, acting as its Medical Director for five years, until she moved into private practice setting in August 2004. Dr. Pfeffer is Board Certified in Sleep Medicine as well as Pediatric Pulmonary Medicine and Pediatrics. She moved to Salt Lake City to practice pediatric pulmonary medicine as a faculty member in the Department of Pediatrics at the University of Utah/Primary Children’s Medical Center. In addition to pediatric sleep medicine, she continues to practice pediatric pulmonary medicine in her new office.


Gregory Dupont, M.D. is the Sleep and Pulmonary Specialist for adults. He is Board Certified in Pulmonary and Sleep Medicine by the American Board of Internal Medicine and is also a Diplomate of Sleep Medicine by the American Board of Sleep Medicine. Greg has been practicing Sleep and Pulmonary Medicine in Utah since 1989. He received his medical degree from the University of Texas Health Science Center in Houston, Texas.  He completed his internship and residency in Internal Medicine in Houston and served one year as a Chief Medical Resident. Greg completed a pulmonary fellowship at the University of Utah Medical School and started private practice in 1992 in West Valley City.

Greg is married and has four children. He grew up in Dallas, Texas and went to college at Loyola University in New Orleans. When he is not working he likes to read, bike, hike, cook, travel and play the violin.

Greg enjoys meeting people and being able to help them with their sleep and breathing problems. He treats all sleep disorders, including: insomnia, narcolepsy, restless legs, sleep walking, sleep apnea, and REM sleep behavior disorder. He is particularly interested in finding ways to help people sleep other than a prescription for sleeping pills. Alternatives include: behavioral therapy, exercise, herbal medicine, stretching and relaxation techniques using slow, deep breathing.

Gregory Dupont, M.D.