Print Departments and specialties Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. Departments with related expertise Pediatric Sleep Medicine in Minnesota Pulmonary Medicine Sleep Medicine Doctors who perform this procedure Edit search filters close Narrow your search By location Phoenix/Scottsdale, AZ By last name Find a doctor whose last name begins with the letter A A Find a doctor whose last name begins with the letter B B Find a doctor whose last name begins with the letter C C Find a doctor whose last name begins with the letter D D There are no doctors whose last name begins with the letter E E There are no doctors whose last name begins with the letter F F active Find a doctor whose last name begins with the letter G G There are no doctors whose last name begins with the letter H H There are no doctors whose last name begins with the letter I I Find a doctor whose last name begins with the letter J J There are no doctors whose last name begins with the letter K K Find a doctor whose last name begins with the letter L L Find a doctor whose last name begins with the letter M M There are no doctors whose last name begins with the letter N N There are no doctors whose last name begins with the letter O O There are no doctors whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q There are no doctors whose last name begins with the letter R R There are no doctors whose last name begins with the letter S S There are no doctors whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U There are no doctors whose last name begins with the letter V V There are no doctors whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X There are no doctors whose last name begins with the letter Y Y Find a doctor whose last name begins with the letter Z Z Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-2 out of 2 doctors available Last Name Initial: G Ashley L. Garrett, M.D. Pulmonologist Sleep Medicine Specialist Phoenix, AZ Areas of focus: Bronchoscopy, Polysomnography, Endobronchial ultrasound biopsy, Thoracentesis, Central sleep apnea, COPD, Asthma, Lung ...nodule, Obstructive sleep apnea, Dyspnea Show more areas of focus for Ashley L. Garrett, M.D. Umesh Goswami, M.B.B.S., M.D. Critical Care Specialist Pulmonologist Sleep Medicine Specialist Phoenix, AZ Areas of focus: Bronchoscopy, Polysomnography, Sleep apnea By Mayo Clinic Staff Request an appointment About Feb. 17, 2023 Print Show references Broaddus VC, et al., eds. Obstructive sleep apnea. In: Murray and Nadel's Textbook of Respiratory Medicine. 7th ed. Elsevier; 2022. https://www.clinicalkey.com. Accessed Jan. 16, 2023. Kramer NR, et al. Overview of polysomnography in adults. https://www.uptodate.com/contents/search. Accessed Jan. 16, 2023. Sleep studies: In the sleep laboratory and in the home 2019. American Thoracic Society. http://www.thoracic.org/patients/patient-resources/fact-sheets-az.php. Accessed Jan. 16, 2023. Brain basics: Understanding sleep. National Institute of Neurological Disorders and Stroke. https://www.ninds.nih.gov/health-information/public-education/brain-basics/brain-basics-understanding-sleep?search-term=understanding%20sleep#. Accessed Jan. 16, 2023. Sleep study. American Academy of Sleep Medicine. https://sleepeducation.org/patients/sleep-study/. Accessed Jan. 16, 2023. Sleep studies. National Heart, Lung, and Blood Institute. https://www.nhlbi.nih.gov/health-topics/sleep-studies. Accessed Jan. 16, 2023. Home sleep apnea test. American Academy of Sleep Medicine. https://sleepeducation.org/patients/home-sleep-apnea-test/. Accessed Jan. 16. 2023. Kryger M, et al., eds. Section introduction: Polysomnography and beyond. In: Principles and Practice of Sleep Medicine. 7th ed. Elsevier; 2022. https://www.clinicalkey.com. Accessed Jan. 16, 2023. Chang JL, et al. International consensus statement on obstructive sleep apnea. International Forum of Allergy and Rhinology. 2022; doi:10.1002/alr.23079. Related Central sleep apnea Insomnia Narcolepsy Nightmare disorder Obstructive sleep apnea Sleep apnea Sleep terrors (night terrors) Sleepwalking Snoring Show more related content Products & Services A Book: Mayo Clinic Family Health Book Newsletter: Mayo Clinic Health Letter — Digital Edition Show more products and services from Mayo Clinic Polysomnography (sleep study)AboutDoctors&Departments PRC-20394863 Patient Care & Health Information Tests & Procedures Polysomnography (sleep study)