School of Medicine

Our Clinical Team

Timothy Beecher

Timothy Beecher, Ph.D. (he/him/his), is an Assistant Professor of Psychiatry and licensed psychologist in the OHSU Resident Faculty Wellness Program. He completed his BS at Loyola University Chicago, earned his M.Ed. at Washington State University and received a Ph.D. at the University of North Dakota. He has extensive experience working in higher education and is excited to join the OHSU Resident Faculty Wellness team. His areas of expertise include working with men in therapy, crisis work, and addressing substance abuse from a harm reduction and motivational interviewing perspective. Dr. Beecher incorporates a variety of treatment approaches in his work, including interpersonal process therapy, feminist therapy, and psychodynamic principles. He is committed to social justice and works diligently to provide culturally responsive treatment. 

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Joanne Chan

Joanne Chan, Psy.D. (she/her), is an Assistant Professor of Psychiatry and licensed psychologist in the Resident and Faculty Wellness Program. Prior to joining OHSU, Dr. Chan was a staff psychologist at Portland Psychotherapy specializing in ACT-informed exposure therapy for anxiety, obsessive-compulsive (OC) and related disorders. She also provided training in evidence-based approaches for anxiety and OC related disorders (including perfectionism) to postdoctoral fellows and practicum students. Dr. Chan earned her B.A. from the University of California, San Diego, and her Psy.D. from the PGSP-Stanford Psy.D. Consortium. After becoming licensed in 2009, she ran a private practice in the San Francisco Bay Area for several years, conducted clinical research on the effectiveness of various evidence-based approaches for hoarding disorder and provided instruction to masters’ level counseling students as an adjunct professor at the University of San Francisco. In addition to her work with anxiety related issues, Dr. Chan enjoys working with clients who are experiencing issues related to culture, including cultural identity development or anxiety related to discrimination and marginalization. She supports all clients in developing skills to live a life based on values in a high-pressure, fast-paced culture. 

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Mike Duncan

Mike Duncan, Psy.D. (he/him), is an Assistant Professor of Psychiatry and a licensed psychologist in the OHSU Resident and Faculty Wellness Program.  He earned his B.A. in psychology at the University of Colorado at Boulder and his M.S. and Psy.D. in clinical psychology at Pacific University.  He has conducted research on risk and protective factors in queer youth and the relation between internalized sexual prejudice and sense of belonging in queer graduate students.  Dr. Duncan’s experience prior to OHSU includes various multi-disciplinary community health settings working with adults having experienced significant trauma and marginalization, and at high risk for addiction, homelessness, suicide, domestic violence, and other poor health outcomes.  Dr. Duncan’s current clinical interests include supporting healthcare professionals with vicarious trauma, stress management, work-life balance, identity development, major life transitions, and intimate relationship improvement.  He has additional interest in supporting LGBTQ+ medical professionals, though he works with patients of all sexual orientations and gender identities.  He aims to help his patients enhance their self-awareness to strengthen agency and redirect intention with respect to each individual’s unique needs.  In a high-stress and demanding medical culture, this allows for a broadening of one’s conception of authenticity and wellness with the goal of finding deeper meaning and fulfillment in medical work while improving overall well-being and quality of life.

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Dr. Christie Kesserwani

Christie Kesserwani, D.O. (she/her), is an Assistant Professor of Psychiatry and board-certified psychiatrist at the OHSU Resident and Faculty Wellness Program. She completed her B.A. at the University of Southern California and obtained her medical degree at Midwestern University prior to completing her psychiatric residency at the Valleywise Behavioral Health Center in Mesa, AZ. Dr. Kesserwani has a special interest in resident physician mental health and founded an inter-departmental therapy group at her training hospital during her final year of residency. Dr. Kesserwani understands the unique challenges faced by physicians in health care today, and utilizes an integrative approach which incorporates therapy, coaching, and/or medication management to help address these challenges.

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Dr. Gillian Lashen

Gillian Lashen, Psy.D. (she/her), is an Assistant Professor of Psychiatry & licensed psychologist in the Resident & Faculty Wellness Program (RFWP). Dr. Lashen earned her doctorate in clinical psychology at The University of Denver & completed her internship at Denver Health Medical Center. Prior to joining RFWP she served as behavioral medicine faculty in an internal medicine residency program, with an emphasis on wellness & resilience. Dr. Lashen has also previously conducted research with family medicine residents & worked on an inpatient medical unit providing treatment to adults with severe eating & feeding disorders. Her interests include cultivating wellbeing at work, relationship issues, weight bias & body image, & antiracism. She utilizes an integrative approach with a focus on Acceptance & Commitment Therapy, Relational-Cultural theory, & cognitive behavioral intervention.

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Mary Moffit 2020 Headshot

Mary Moffit, Ph.D. (she/her), Associate Professor of Psychiatry, Oregon Health & Science University, is director of the OHSU Resident and Faculty Wellness Program and the Peer Support Program. A clinical psychologist who received her Ph.D. from the Wright Institute and completed a fellowship in Medical Psychology, Dr. Moffit was the first psychologist embedded in the OHSU Department of Internal Medicine. In 2004, she joined Graduate Medical Education leadership to design and develop a comprehensive wellness program that is now a national model for academic medical centers. Dr. Moffit and her team provide free, highly confidential coaching, counseling and medical consultation for all School of Medicine residents, fellows and faculty. In addition, she presents educational workshops directed at building a sustainable medical practice, preventing burnout and early intervention to prevent impairment. In 2016, Dr Moffit and her team developed the OHSU School of Medicine's Peer Support Program, modeled on Brigham and Women's innovative program, providing triage after an adverse event, referrals to trained physician peer supporters and resources directed at recovery from professional distress. 

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Headshot of Marie Soller

Marie Soller, M.D. (she/her), Assistant Professor of Psychiatry, OHSU School of Medicine, completed her undergraduate and medical education at Stanford University, and her psychiatric residency at San Mateo County Behavioral Health and Recovery Services. Dr. Soller has a strong interest in resilience, life work balance, and the role of self-care and social support. Dr. Soller is pleased to be a part the Resident and Faculty Wellness Program and working with physicians who might be having personal or professional difficulties. Dr. Soller uses medication evaluation and management, and psychotherapy (cognitive behavioral, psychodynamic, and supportive therapies) to address these issues.

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Sara Walker

Sara Walker, Ph.D. (she/her), is an Associate Professor of Psychiatry, core faculty member in the Clinical Psychology PhD Program at OHSU, and licensed psychologist in the Resident and Faculty Wellness Program. Dr. Walker grew up in Portland, earned a Bachelor's degree from the University of Oregon, a Master's in Counseling Psychology and a PhD in Clinical Psychology from the University of California at Santa Barbara, and completed a postdoctoral fellowship in Clinical Neuropsychology at the University of Michigan School of Medicine. She returned to Portland to join the faculty at OHSU in 2011 and has been excited to join the RFWP team in 2021. Dr. Walker has also been active in disaster mental health preparedness and response, as well as sustainability efforts at OHSU, regionally, and nationally. She values acknowledging and addressing normal, healthy stress responses, as well as using a multicultural, existential lens to identify, navigate, and potentially grow from other challenges or experiences.