ADVANCED SLEEP MEDICINE SERVICES - Key Persons


Deepti Chandran

Dr. Chandran received her medical degree from Wright State University in Dayton, Ohio. She completed her Internal Medicine residency at UCSF-Alameda County Medical Center. After this, she completed a fellowship in Sleep Medicine at Stanford Sleep Disorders Clinic, one of the most prestigious sleep programs in the country. In addition to her board certification in Internal Medicine, she received her board certification in Sleep Medicine in 2011. She has clinical interests in sleep disordered breathing, circadian rhythm disorders, and pediatric sleep disorders.

Dr. Sheila Manhas

Dr. Sheila Manhas received her medical degree from the Univeristy of Alberta, Edmonton, Alberta and completed her residency in neurology at the University of Manitoba, Winnepeg, Manitoba. Dr. Manhas was a Fellow of the Royal College of Physicians and Surgeons of Candata. She is board certified in neurology and sleep medicine. …

Dr. Shirisha Janumpally

Job Titles:
  • Medical Director
Dr. Shirisha Janumpally, the Medical Director for Advanced Sleep Medicine Services, is board-certified in sleep medicine and neurology. She is also a member of the American Academy of Sleep Medicine, American Academy of Neurology and American Medical Association. She has worked in both academic and community settings as a neurologist and sleep medicine specialist. Dr. Janumpally grew up in southern California. She went to medical school in the Midwest and came back to southern California to complete her training. She completed her internship at Loma Linda University Medical center in Internal medicine. Subsequently she completed her neurology residency and sleep medicine training at University Of California-Irvine (UCI) Medical Center. During her residency her research focus was on the role of dopamine agonists (which are used to treat restless leg syndrome) in causing impulse control behavior disorders. Following her training she worked as a sleep medicine attending physician as well as an Assistant Professor of Neurology at UCI Medical Center. Her clinical interests include sleep related breathing disorders, parasomnias, and circadian rhythm disorders.

Dr. Young Ko

Job Titles:
  • Primary Care Physician
  • Lancaster
Dr. Ko is a primary care physician that treats a variety of internal medicine disease including diabetes, hypertension, thyroid disease, hypertension, etc. Dr. Young Ko has been in private practice for over 30 years and is boarded in critical care, pulmonology and sleep medicine. He has served the communities of the Antelope Valley with up-to-date pulmonary knowledge and new procedures including a treatment for patients with severe persistent asthma called Bronchial Thermoplasty. Dr. Ko performs Endobronchial Ultrasound and Electromagnetic Navigation Bronchoscopy with biopsies for the staging of lung cancer, therapeutic and diagnostic bronchoscopy, percutaneous lung biopsy, percutaneous tracheotomy, and thoracoscopy.

Karen D. Cheng

Dr. Karen Cheng is board-certified in sleep medicine and neurology. She is an active member of the American Academy of Sleep Medicine, the American Academy of Neurology and the California Sleep Society. Dr. Cheng is in private practice in Laguna Hills at the Saddleback Medical Tower and is a medical staff member of Saddleback Memorial Medical …

Yurzul Dhanani

Dr. Yurzul Dhanani is Board Certified in Internal Medicine, Pulmonary (Respiratory) Medicine and Critical Care Medicine. Dr. Dhanani specializes in the diagnosis and treatment of sleep disorders, in particular sleep apnea, and lung diseases. Dr Dhanani did his Internal Medicine Residency at Helene Fuld Medical Center in Trenton N.J. and completed his Chief Residency at …