Welcome

The UCSF Sleep Disorders Center at the UCSF Medical Center at Mount Zion was established in 1994 and has been accredited by the American Academy of Sleep Medicine since 1995. The medical director is Board Certified in Sleep Medicine.


Our Sleep Disorders Center offers a comprehensive range of services and treatments for all sleep disorders, including Sleep Apnea, Insomnia, Periodic Leg Movements, Restless Legs Syndrome, Narcolepsy and Snoring. Treatment is individualized to each patient's needs. We evaluate patients from children (age two and up), to adults and the elderly.

Our professional staff include:

  • David Claman, MD, Medical Director, Board Certified Sleep Medicine Specialist
  • Rochelle Zak, MD, Board Certified Sleep Medicine Specialist
  • Kin Yuen, MD, Board Certified Sleep Medicine Specialist
  • Naomi Han, NP, Nuse Practitioner, Sleep Specialist
  • Julianne Blythe, MPA, PA-C, Physician's Assistant Sleep Specialist
  • Veronica Mallari, NP, Nurse Practitioner Sleep Specialist

Our technical staff include:

  • Patrick Cordova, RPSGT Practice Manager
  • Braden McGraw, RPSGT, Technical Coordinator
  • Michelle McKellar, RN, RPSGT, Registered Nurse, Night Shift Supervisor
  • Edmund Carvajal, RRT, RPSGT, Respiratory Therapist, Night Shift Supervisor

Our office staff include:

  • Tu Grimalauskas, Administrative Director 
  • Patrick Cordova, Practice Manager
  • Wendy Chin, RN, Clinical Nurse
  • Sonia Lopez, CMA, CPAP Coordinator