The Doctors

• Expand to see Dr. Gerald B. Rich Full Credentials (+)

  Gerald B. Rich,

  MD, ABSM / Director

  Our full-time, on-premises Medical Director, Dr. Gerald B. Rich received his MD degree from Oregon Health Sciences University in 1975. Dr. Rich also received his internship training from Oregon Health Sciences University, followed by residency training and fellowships in both Neurology and Psychiatry at world-renowned Johns Hopkins Hospital in Baltimore, Maryland.

  Our full-time, on-premises Medical Director, Dr. Gerald B. Rich received his MD degree from Oregon Health Sciences University in 1975. Dr. Rich also received his internship training from Oregon Health Sciences University, followed by residency training and fellowships in both Neurology and Psychiatry at world-renowned Johns Hopkins Hospital in Baltimore, Maryland.Our full-time, on-premises Medical Director, Dr. Gerald B. Rich received his MD degree from Oregon Health Sciences University in 1975. Dr. Rich also received his internship training from Oregon Health Sciences University, followed by residency training and fellowships in both Neurology and Psychiatry at world-renowned Johns Hopkins Hospital in Baltimore, Maryland.

• Expand to see Dr. Chad C. Hagen Full Credentials (+)

  Chad C. Hagen,

  MD, DABPN

  Before joining Pacific Sleep Program in 2009, Dr. Hagen was Assistant Professor at Oregon Health and Science University where he enjoyed teaching medical students, residents and sleep medicine fellows.  He has book chapters, review articles and novel research published on sleep apnea, disorders of excessive sleepiness, sleep disruption and the identification and classification of various sleep disorders.  He continues occasional teaching activities and has ongoing research, but devotes most of his time to clinical care in sleep medicine at Pacific Sleep Program.

  Dr. Chad C. Hagen attended Sleep Medicine Fellowship at Stanford University where he was trained by world renowned leaders in the science and clinical care of sleep apnea, upper airway resistance syndrome, narcolepsy, other disorders of sleepiness, insomnia, restless leg and periodic limb movement disorder.  Prior to his formal sleep training, Dr. Hagen received training from internationally recognized leaders in the science of circadian rhythms while completing his residency in psychiatry at Oregon Health and Science University.  He is grateful for the unique privilege of such in-depth training in every aspect of sleep medicine. Before residency he graduated from the University of Washington in Seattle with his MD degree in 2002 and Bachelor of Science in 1997.  Dr. Hagen is the only physician in the Portland area to have completed a prestigious Stanford sleep Fellowship and then go on to additionally become board certified in Sleep Medicine.
  Publications:
  Hagen CC, Black JE, Chapter 9:  Hypersomnias of Central Origin.  Foundations of Psychiatric sleep medicine.  Editor John Winkelman MD, PhD. 2010.

  Guilleminault C, Hagen CC, Huynh N.  Comparison of hypopnea definitions in lean patients with known obstructive sleep apnea hypopnea syndrome (OSAHS), Journal of Sleep and Breathing. 2009.

  Beattie ZT, Hagen CC, Hayes TL, Classification of breathing events using load cells under the bed. Conf Proc IEEE Eng Med Biol SOc. 2009;2009:3921-4.

  Hagen CC, Black JE, Excessive daytime sleepiness and fatigue in the psychiatric patient. Sleep Medicine Clinics. p205-215, 2008.

  Hagen CC, Huynh N, Guilleminault C. Hypopnea definitions VIII.4.A and VIII.4.B fail to identify clinically significant OSAH in lean patients. Abstract Supplement (11) 2008; # 0590.

  Guilleminault C, Hagen CC, Khaja A. Catathrenia: parasomnia or uncommon feature of sleep disordered breathing? SLEEP 2008 Jan 1;31(1):132-9.

  Guilleminault C, Huang Y, Chan A, Hagen CC. Cyanotic breath holding spells in children with obstructive sleep apnea respond to adenotonsillectomy for sleep disordered breathing. Journal of Sleep Research. 2007 Dec;16(4):406-13.   

  Guilleminault C, Lopes C, Hagen CC, da Rosa A. The cyclic alternating pattern demonstrates increased sleep instability and correlates with fatigue and sleepiness in adults with upper airway resistance syndrome. SLEEP, 30(5): 2007 626-32.

  Guilleminault C, Rosa de A, Hagen CC, Prilipko O. Cyclic alternating pattern (CAP) and sleep disordered breathing in young women:  History of the validation of CAP scoring and a translational study. Sleep Medicine Clinics 1(4): 2006.

  Hagen CC, Sack R, Marshall L, Orwoll E, Stone K.  First void 6-sulfatoxymelatonin as an indicator of melatonin production in elderly men. Abstract Supplement (9) 2006; # 0328

  Hagen CC. Clinical use of melatonin for sleep disorders, Oregon Psychiatric Association, Salem OR,21(3), 2005

• Expand to see Dr. Nadine Vandentop Full Credentials (+)

  Nadine Vandentop,

  PA-C

  Ms. Vandentop started her career as a PA in primary and urgent care in the Portland and Vancouver area. She has served as an adjunct faculty member in the Physician’s Assistant programs at OHSU and at Midwestern University in Phoenix, Arizona.

  Ms. Vandentop started her career as a PA in primary and urgent care in the Portland and Vancouver area. She has served as an adjunct faculty member in the Physician’s Assistant programs at OHSU and at Midwestern University in Phoenix, Arizona. Also in Arizona, Ms. Vandentop worked as a PA in a pediatric gastroenterology nutrition clinic and in primary care. Returning to the Northwest, she worked in the Brain Injury Rehabilitation Center (BRIC)  and as covering Medical Director. Before graduating from the physician’s assistant program at U.C. Davis in 1992, she completed her Bachelors of Science degree at the University of Alberta in Edmonton, Canada. Nadine enjoys boating and skiing with her family and is an avid runner, having completed several marathons with her 4 older sisters.

Our Team

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  Joel R. Glass, RPSGT
  

  Registered Sleep Technologist

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  Andrew James, RPSGT
  

  Registered Sleep Technologist

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  Laura Kennedy, RPSGT
  

  Senior Scoring Technologist

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  Le Anderson, RPSGT
  

  CRT
  
  

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  Sarah Schaff
  

  Sleep Technician

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  Jennifer
  

  Receptionist

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  Tammi
  

  New Patient Coordinator

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  Kirsten
  

  Medical Records Clerk

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  Sue
  

  Bookkeeper/billing