The Sleep and Circadian Health Fellowship
Sleep Medicine Center | Stanford Health Care – Redwood City
Located in the Stanford Sleep Medicine Center, the Sleep & Circadian Health Program is part of a fast-paced, multidisciplinary academic medical setting. This fellowship program provides advanced training in sleep and circadian assessment as well as diagnosis and intervention from a health psychology perspective. Training ensures that those who complete the program are eligible to sit for the Diplomate in Behavioral Sleep Medicine (DBSM) exam.
The fellowship is part of the Department of Psychology and Behavioral Sciences APA-accredited Clinical Psychology Postdoctoral Fellowship. The Program at the Sleep Medicine Center is accredited by the Society of Behavioral Sleep Medicine. The Stanford Sleep Medicine Fellowship Program is accredited by AASM and ACGME.
APPIC Application Portal >
December 1, 2022
Stanford Clinical Psychology Fellowship (Adult Program)
Fiona Barwick, Ph.D., D.B.S.M.
As one of the longest established and best-known centers for sleep disorders in the country, Stanford Sleep Medicine Center sees a high volume of patients with a wide variety of sleep disorders. Fellows are trained in the assessment, diagnosis, and treatment of insomnia, circadian rhythm disorders, hypersomnia, parasomnias, sleep apnea, restless legs, and pediatric sleep problems. Interventions include:
- Cognitive Behavioral Therapy for Insomnia (CBT-I)
- Imagery Rehearsal Therapy for nightmares (IRT)
- Mindfulness-based and Acceptance-based therapies
- Augmentation techniques for Circadian Rhythm Disorders (melatonin testing, bright light therapy)
- Adjustment to PAP (Positive Airway Pressure therapy) for obstructive sleep apnea
Given the high service demands of a busy clinic, treatment follows a stepped-care model. Treatment is conducted in individual and group formats for adults (ages 18-75+) and some children (ages 7-17). Lifespan developmental issues are actively discussed to help fellows recognize unique challenges in different age groups and cohorts. Length of treatment typically ranges from 2 to 8 sessions, with a modal number of 4 sessions.
Recognizing the importance of individually tailored treatment, this fellowship emphasizes training in case conceptualization and integration of evidence-based interventions to address the complex needs of individuals with medical and psychiatric comorbidities (e.g., anxiety, depression, trauma, chronic pain or fatigue, cancer, concussion, POTS, IBS, and comorbid sleep disorders). Fellows continue to refine skills in motivational interviewing and interpersonal processes to promote treatment adherence and facilitate behavioral and cognitive changes.
As fellows work with a diverse patient population, relevant aspects of cultural identity and background are included in assessment, case conceptualization and treatment. Fellows are encouraged to adapt treatment flexibly and to actively reflect on how their own background and worldview might impact treatment. Throughout this fellowship, they will gain expertise in addressing sleep concerns while considering medical, psychiatric, interpersonal, and cultural factors.
Fellows provide formal and informal consultation to MD fellows at the Sleep Medicine Center. Medical residents and interns sometimes join fellows during individual patient assessment and treatment sessions. Fellows also give 1-2 presentations during the year and can co-present lectures to other Stanford departments with Dr. Barwick or Dr. Molzof. Fellows have the opportunity to give educational talks and do community outreach for Stanford Sleep Medicine Center’s monthly AWAKE meeting, the Pain Science Lecture Series, and the Annual Wellness Fairs.
The Sleep & Circadian Health Fellowship provides 2000 hours of supervised training in behavioral sleep medicine and circadian biology for full-time postdoctoral fellows during a 12-month period starting in September and ending in August.
Supervision during the fellowship year follows a sequential developmental model and meets or exceeds the hours required for national and state licensure. During the first month, fellows observe Dr. Barwick and Dr. Molzof conducting evaluation and treatment sessions. They also have the opportunity to observe sleep physicians in specialty clinics--including general sleep, parasomnias, restless legs, and narcolepsy—as well as sleep technologists. During subsequent months, fellows see patients individually but consult with supervisors on new patients, with autonomy increasing over the course of the training year. Fellows also co-facilitate groups with Dr. Barwick (CBT-I group, CBT for sleep and pain group), and Dr. Molzof (PAP Adjustment group, Mindfulness-Acceptance group). Fellows may have the opportunity to develop additional behavioral sleep medicine groups based on their interests and expertise.
Fellows receive two hours of individual face-to-face supervision every Friday and ad hoc supervision during the rest of the week. They also participate in group supervision with BSM providers on Fridays.
Postdoctoral fellows participate in didactic programs throughout the week, including Sleep Medicine and Behavioral Sleep Medicine didactics on Fridays (4 hours) and Psychiatry Professional Development Seminars on Tuesday and Thursdays (2 hours). The sleep didactics offer both breadth and depth of coverage on all sleep-related issues, including sleep health across the lifespan, sleep genetics and physiology, chronobiology, insomnia, circadian disorders, hypersomnia, parasomnias, sleep-related breathing disorders, sleep-wake pharmacology, and sleep in the context of medical and psychiatric disorders. A monthly Behavioral Medicine Case Consultation group with psychologists from Cardiology, Diabetes, Gastrointestinal and Pain clinics offers additional opportunities for broader education across specialty areas in Health Psychology.
Fellows participate in weekly professional development and ethics seminars as part of the Clinical Psychology Fellowship. During individual and group supervision, topics relevant to professional development are also discussed, such as psychology licensure, job search, transition to early career, models of supervision, and work-life integration.
As this is a clinical fellowship, research involvement is encouraged but not required. The Sleep & Circadian Health Program is currently building a database of past and current patient records in REDCap, a secure, encrypted database software management program, that can be used for inquiries related to patient care and to generate small research projects that can be conducted during the year. In addition, the Division of Sleep Medicine oversees multiple ongoing research studies conducted on site and at affiliated locations.
Fellows have the opportunity to participate in yearly quality improvement projects within the Sleep Medicine Division as part of the Improvement Capability Development Program (ICDP), as well as clinical projects designed to improve patient care within Behavioral Sleep Medicine.
Diversity and Multicultural Competence
Reflecting the Bay area, Stanford Sleep Medicine Center serves a diverse patient population, including but not limited to diversity in gender, age, culture, race, ethnicity, religion, disabilities, and sexual orientation.
The Sleep & Circadian Health Program emphasizes training in multicultural competence in the context of behavioral sleep medicine. In supervision, fellows are encouraged to actively reflect on how their cultural backgrounds and experiences shape their attitudes, beliefs, biases and privileges (or lack thereof) and how this might impact patient care. Supervision also includes discussion of intersectional identities and systemic issues that might contribute to patient health disparities and individual suffering. Finally, fellows participate in a Diversity and Inclusion Seminar as part of the Clinical Psychology Fellowship for additional training in multicultural competence.
The Sleep & Circadian Health Program values working with fellows from diverse backgrounds and strives to promote a respectful and supportive professional environment. Recognizing the importance of representation in health care, candidates from different and/or under-represented backgrounds are encouraged to apply to this fellowship.
For further diversity resources at Stanford, please review links below:
Program Director and Faculty
Fiona Barwick, PhD, DBSM
Clinical Associate Professor in Stanford Department of Psychiatry and Behavioral Science
Director of the Sleep and Circadian Health Program
Stanford Sleep Medicine Center & Stanford Center for Sleep Sciences and Medicine
T: (650) 721-7558
Dr. Barwick is a licensed clinical psychologist who specializes in treating sleep disorders using a variety of cognitive-behavioral techniques. She sees adults and adolescents who struggle with insomnia, hypersomnia, circadian rhythm disorders, nightmares, and PAP therapy. She trains both Ph.D. and M.D. fellows at the Sleep Medicine Center and gives talks on sleep in other departments such as Neurology and Chronic Pain Management. She enjoys educating individuals within and outside of the Stanford community about sleep and circadian science as well as drug-free approaches for improving sleep and has given talks professionally at national conferences such as the California Sleep Society.
Dr. Barwick earned her Ph.D. in Clinical Psychology from Pennsylvania State University, including internship at the VA Palo Alto Health Care System (2011). She completed a research-clinical postdoctoral fellowship at the James A. Haley VA in Tampa (2012) and a clinical postdoctoral fellowship at the VA Greater Los Angeles Healthcare System (2014). Areas of specialization include sleep, circadian rhythms, neuropsychology, and chronic pain.
Hylton Molzof, PhD, MPH
Clinical Assistant Professor in Stanford Department of Psychiatry and Behavioral Sciences
Dr. Molzof is a Clinical Assistant Professor and Licensed Psychologist in the Department of Psychiatry and Behavioral Sciences, Stanford School of Medicine. She specializes in the assessment and treatment of sleep disorders via behavioral sleep medicine interventions, including Cognitive Behavioral Therapy for Insomnia (CBT-I) and positive airway pressure (PAP) desensitization. She also utilizes evidence-based techniques to help patients better manage circadian rhythm disorders, such as delayed sleep-wake phase disorder and shift work sleep disorder. Inspired by her background in public health, she has a strong interest in quality improvement and program development projects aimed at enhancing the quality and accessibility of sleep and circadian medicine for the diverse patient population served by Stanford Sleep Medicine Center.
Dr. Molzof received her Ph.D. in Clinical Psychology from the University of Alabama, including a pre-doctoral internship at VA Puget Sound Healthcare System, American Lake Division. She completed a postdoctoral fellowship via Stanford’s Sleep and Circadian Health program.
Allison Siebern, PhD, CBSM
Adjunct Clinical Faculty in Stanford Department of Psychiatry and Behavioral Science
Director of the Sleep Health Integrative Program, VA Medical Center in NC
Clinic Director of Sleep Health and Wellness, Raleigh, NC
T: (910) 488-2120 x 783
Dr. Siebern is a licensed clinical psychologist in the states of CA and NC and board certified in Behavioral Sleep Medicine by the American Board of Sleep Medicine. She specializes in integrative treatments for sleep disorders using a variety of cognitive behavioral techniques, biofeedback/neurofeedback, use of electroceuticals, Taiji, Qigong and Chinese Medicine. She is currently the Director of the Sleep Health Integrative Program at the VA Medical Center in NC as well as Clinic Director of Sleep Health and Wellness, PLLC, a private practice in downtown Raleigh. Dr. Siebern is adjunct clinical faculty with the Stanford Sleep Center where she completed the sleep fellowship from 2008 to 2010 and stayed on as faculty. She has been treating patients of all ages in the field of sleep medicine for 15 years and is also the creator of Sleepfitness.com, a self-directed program for individuals that lack access to sleep health options. She consults with companies on sleep health science, is published in peer-reviewed journals, has given talks at national conferences, and has been interviewed with many media outlets such as Time and Dow Jones. Her research interests include examining complementary and alternative treatments for sleep disorders and different models of care for dissemination of these sleep treatments.
Dr. Siebern received her doctoral degree in Clinical Psychology from Nova Southeastern University in Fort Lauderdale, Florida and completed her predoctoral internship at Miami Childrens Hospital in Miami, Florida. Dr. Siebern has a passion for the field of sleep medicine and believes in the importance of training future generations of sleep providers.
Current and Past Fellows
Sharon Maroukel, PhD
Sleep and Circadian Health Program
Dr. Maroukel is the 2022-23 Behavioral Sleep Fellow at the Stanford Sleep Medicine Center. Dr. Maroukel received her PhD in Clinical Psychology from Alliant University in San Francisco, CA, and completed her predoctoral internship at Samaritan Health Services in Corvallis, OR.
Karin Voelker, PsyD
Sleep and Circadian Health Program
Dr. Voelker was one of the 2021-22 Behavioral Sleep Fellows at the Stanford Sleep Medicine Center. Dr. Voelker received her Psy.D. in Clinical Psychology from John F. Kennedy University in Pleasant Hill, CA and completed her predoctoral internship at San Jose State University- Counseling and Psychological Services in San Jose, CA.
Ana M. Martínez, PsyD
Sleep and Circadian Health Program
Dr. Martínez was the 2021-22 Behavioral Sleep Fellow at the Stanford Sleep Medicine Center. Dr. Martínez received her PsyD in Clinical Psychology from Nova Southeastern University in Fort Lauderdale, FL, and completed her predoctoral internship at the Central Arkansas Veterans Healthcare System (CAVHS) in North Little Rock.
Hylton Molzof, MPH, PhD
Sleep and Circadian Health Program
Dr. Molzof was the 2020-21 Behavioral Sleep Fellow at the Stanford Sleep Medicine Center. Dr. Molzof received her Ph.D. in Clinical Psychology from the University of Alabama in Tuscaloosa, AL, and completed her predoctoral internship at the VA Puget Sound Healthcare System, American Lake Division in Tacoma, WA.
Jade Rijsketić, PhD, DBSM
Licensed Clinical Health Psychologist
Clinical Assistant Professor
University of Utah, Salt Lake City, UT
Dr. Rijsketić was the 2019-20 Behavioral Sleep Medicine Fellow at the Stanford Sleep Medicine Center. She is currently a Clinical Assistant Professor at the University of Utah Sleep-Wake Center. Dr. Rijsketić is a licensed psychologist and diplomate in behavioral sleep medicine. She received her PhD in Clinical Health Psychology from the University of North Texas in Denton, TX and completed her predoctoral internship at the University of Florida Health Science Center in Gainesville, FL.
Shantha Gowda, PsyD, DBSM
Marine Corps Forces Special Operations Command, Camp Lejeune, NC
Dr. Gowda was the 2018-19 Behavioral Sleep Medicine Fellow at the Stanford Sleep Medicine Center. She is currently working as a clinical psychologist specializing in sleep disorders and treatment at MARSOC, the Marine Corps Forces Special Operations Command. Dr. Gowda received her Psy.D. in Clinical Psychology from Nova Southeastern University in Fort Lauderdale, FL, and completed her predoctoral internship at the VA Southern Nevada Healthcare System in Las Vegas.
Andrew Guzman, PsyD, DBSM
Licensed Clinical Psychologist
University of California, Los Angeles / VA Greater Los Angeles Health Care System
Dr. Guzman was the 2018-19 Behavioral Sleep Medicine Fellow at the Stanford Sleep Medicine Center. He is currently a sleep psychologist on a clinical research trial designed to help older adults sleep without sleep medication that is being conducted at VA Greater Los Angeles Health Care System / UCLA-David Geffen School of Medicine. Dr. Guzman received his Psy.D. in Clinical Psychology from La Salle University in Philadelphia, PA, and completed his predoctoral internship at the Corporal Michael J. Crescenz Veteran Affairs Medical Center.
Widyasita Sawyer, PhD
Summit Behavioral Medicine, Campbell, CA
Octave Health Group, San Francisco, CA
Dr. Sawyer was the 2017-2018 Behavioral Sleep Medicine Fellow at the Stanford Sleep Medicine Center. She is currently a licensed psychologist engaging in direct patient care in Behavioral Medicine in private practice, along with being a generalist at Octave. Dr. Sawyer is passionate about increasing access to mental health care and is also engaged with Clinical Design and Product initiatives at Octave to develop a new measurement-based stepped-care approach to mental health services. Dr. Sawyer received her Ph.D. in Clinical Psychology from The University of Arizona in Tucson, AZ, and completed her predoctoral internship at the VA Puget Sound Healthcare System, American Lake Division in Tacoma, WA.
Sarah Silverman, PsyD
Sleep Psychologist at Sleep & Shine, Orlando, FL
National Register Health Service Psychologist
Dr. Silverman was the 2016-17 Behavioral Sleep Medicine Fellow at the Stanford Sleep Medicine Center. She has unique and extensive experience working with medically complex and underserved populations, and she is passionate about sleep health and wellness. She currently treats a wide variety of sleep concerns in private practice using a personalized, mindfulness-based treatment approach and is an expert in Cognitive Behavior Therapy for insomnia (CBT-I). Dr. Silverman earned her doctoral degree (PsyD) in Clinical Health Psychology from Nova Southeastern University in Fort Lauderdale, FL and completed her predoctoral internship at the Henry Ford Hospital in Detroit, MI. Dr. Silverman is actively involved in the Society of Behavioral Sleep Medicine’s (SBSM) efforts to disseminate information and resources about behavioral sleep medicine to the public. She currently serves as the Co-Chair of the SBSM Outreach and Public Education Committee.
Daniel Jin Blum, PhD, DBSM
Adjunct Clinical Faculty in Stanford Department of Psychiatry and Behavioral Sciences
Sleep Psychologist at Sleep Wise, San Francisco, CA
Daniel Jin Blum, PhD, DBSM, is a sleep psychologist and on the Adjunct Clinical Faculty at Stanford, where he provides training on behavioral sleep medicine. An expert in cognitive behavioral therapy for insomnia, Dr. Blum trained at UC Berkeley's Sleep & Mood Research Clinic as well as Stanford's Center for Sleep Sciences & Medicine, where he was the 2015-16 clinical fellow. He has authored Sleep Wise: How to Feel Better, Work Smarter, and Build Resilience, a book designed to improve well-being through sleep and mindfulness. When he is not engaging in patient care, he consults for companies focused on integrating sleep, behavior change, and technology. Dr. Blum is a transracial Korean-adoptee and resides in San Francisco. He received his BA in Psychology from University of Colorado Boulder and his PhD in Clinical Psychology from CSPP. He is a Diplomate in Behavioral Sleep Medicine (BBSM), International Sleep Disorders Specialist (WSS), and Licensed Psychologist in California, Colorado, and Florida.
Dr. Maria Alexandra Pais de Freitas da Cunha
Dr. Cunha completed a 2-month Resident Observership at the Stanford Sleep Medicine Center in July-August 2019. She is a licensed clinical psychologist, coordinator of the Psychology Department, and member of the Sleep Clinic at the Private Hospital da Luz Coimbra, Portugal. She specializes in Clinical and Health Psychology. She is board-certified in Cognitive Behavioral Therapy by the Portuguese Association of Behavioral Therapy and is also a certified teacher of Mindfulness Based Stress Reduction (MBSR) through the Center for Mindfulness at UC-San Diego. Dr. Cunha earned her Master’s Degree and Internship in Clinical Psychology at the University of Coimbra, Portugal
Yishan Xu, PhD, DBSM
Dr. Xu is a Licensed Psychologist and Adjunct Clinical Instructor in the Department of Psychiatry and Behavioral Sciences—Division of Sleep Medicine within Stanford University School of Medicine. She currently serves as the chair of the OPEC committee for the Society of Behavioral Sleep Medicine. She completed a part-time Resident Observership from 2017-2019 at the Stanford Sleep Medicine Center. She has specialized training in the diagnosis and treatment of insomnia, circadian rhythm disorders, parasomnias, nightmares, and adjustment to PAP therapy for sleep apnea. Dr. Xu grew up in China and received her Ph.D. in Clinical Psychology from the University of Virginia, VA. She is currently adapting treatment for insomnia for the Chinese population. She is the founder and director of a multicultural group practice in the Bay Area: Mind & Body Garden Psychology Inc. She also hosts a podcast "Deep into Sleep" to help bridge the gap between public awareness and knowledge of sleep problems and the science of sleep medicine.
Puntarik Srisawart, MD
Dr. Puntarik Srisawart is a psychiatrist and medical instructor in the Department of Psychiatry at King Chulalongkorn Memorial Hospital in Bangkok, Thailand. She has received specialized training in the diagnosis and treatment of sleep disorders with co-occurring psychiatric conditions. She received her Doctor of Medicine, with Honors, from Chiangmai University, Thailand in 2007, and her Diplomate from the Thai Board of Psychiatry, Medical Council of Thailand, in 2011. She is currently completing a research postdoctoral fellowship at the Cleveland Clinic – Sleep Disorders Center.