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Center to Improve Veteran Involvement in Care (CIVIC)

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Affiliate Investigators

Khaya Clark, PhD
Khaya D. Clark, PhD

Khaya D. Clark, PhD is a Research Investigator at the National Center for Rehabilitative Auditory Research and Assistant Professor in the Department of Medical Informatics and Clinical Epidemiology at the Oregon Health and Science University (OHSU). In her role as a rehabilitative researcher, Dr. Clark uses implementation science, human factors frameworks, quality improvement models, and qualitative, mixed-methods approaches to understand processes that support, or impede, the implementation of evidence-based practices in VA and Department of Defense rehabilitative settings. Dr. Clark's areas of research include the use of Veterans' health narratives on chronic health conditions to inform research, system improvement, and clinical services related to the provision of tinnitus management, and the implementation of ototoxicity management guidelines (with Dr. Konrad-Martin) in VA and non-VA settings.

Auditory Rehabilitation Needs in COVID-19 Survivors (Collaborator)

SARS-CoV-2, the virus responsible for the COVID-19 infectious disease, is likely to circulate for the foreseeable future. There is a need to understand the short- and long-term consequences of COVID-19 on the auditory system, especially among Veterans who are already at risk for underlying auditory complications, and to conceptualize these within a rehabilitation framework. The objective of this project is to quantitatively examine and qualitatively understand the impact of COVID-19 on Veterans’ auditory function.
Principal Investigator: Reavis
Grant Source: SPiRE

Traumatic Brain Injury Among Veterans (Collaborator)

Principal Investigator: Mark Helfand, MD

Physiological, Behavioral, and Predictive Correlates of Ototoxicity in Humans (Collaborator)

Principal Investigator: Dawn Konrad-Martin, PhD
Grant Source: VA RR&D Merit Award 2019-2024

You can find a full list of publications at PubMed.

  • Dobscha SK, Clark KD, Karras E, Simonetti JA, Newell S, Kenyon EA, Elliott V, Boster J, Gerrity M. Development and Preliminary Evaluation of an Education Program for Primary Care Teams on Discussing Firearms Storage Safety with Veterans. Journal of medical education and curricular development. 2022 Feb 14; 9:23821205221077647
  • Edmonds CM, Clark KD, Thielman EJ, Henry JA. Progressive Tinnitus Management Level 3 Skills Education: A 10-Year Clinical Retrospective. American Journal of Audiology. 2022 Sep 1; 31(3):567-578
  • Mojica CM, Gunn R, Pham R, Miech EJ, Romer A, Renfro S, Clark KD, Davis MM. An observational study of workflows to support fecal testing for colorectal cancer screening in primary care practices serving Medicaid enrollees. BMC cancer. 2022 Jan 25; 22(1):106


Vanessa Somohano, MA, PhD
Vanessa Somohano, MA, PhD

Vanessa C. Somohano, MA, PhD, is a CIVIC Affiliate Junior Investigator and Affiliate Professor at Pacific University, School of Graduate Psychology. Her primary research interests involve understanding mechanism maintaining comorbid PTSD and substance use disorder (PTSD-SUD), and ways to adapt and improve interventions for this comorbidity within marginalized populations. She completed her Ph.D. at Pacific University in 2020 and was the recipient of an R36 dissertation award through the National Institute on Drug Abuse, through which she conducted a pilot randomized-controlled trial of a trauma-integrated adaptation of mindfulness based relapse prevention for women with PTSD-SUD. After completing her pre-doctoral internship at the Southern Oregon VA, she accepted a postdoctoral position in the VA’s NW Mental Illness Research, Education, and Clinical Centers (NW MIRECC) program. During her fellowship, she was awarded a VA HSR SWIFT award to analyze VA electronic health record data on rates and predictors of evidence-based psychotherapy utilization for PTSD among those with comorbid SUD. Her current research aims to identify gender differences in risk factors for worsening PTSD, substance use, and suicide outcomes in Veterans over time; understand women-relevant mechanisms underlying interventions for PTSD-SUD, and investigate trauma-informed and culturally-relevant adaptions to mindfulness-based interventions for substance use disorders.

Suicide Prevention Trials Repository (Junior Investigator/Mentee)

The aims of this diversity supplement are to: 1) identify gender differences in risk profiles at the individual-, relational-, community-, and systemic-level among Veterans who have worsening PTSD, substance use, and suicidality over time, and 2) identify women-relevant mechanisms underlying interventions for comorbid PTSD and substance use disorder.
Principal Investigator: Lauren Denneson
Grant Source: VA CSR&D, Diversity Supplement

Rates and predictors of evidence-based psychotherapy (EBP) utilization and outcomes for veterans with comorbid PTSD and substance use disorder (Principal Investigator)

The aims of this study are twofold: 1) compare rates of EBP initiation, completion and PTSD symptom change in veterans with comorbid PTSD-SUD vs. PTSD only, and 2) identify health services and patient characteristic predictors of EBP initiation, completion, and PTSD symptom change among individuals with comorbid PTSD-SUD.
Grant Source: VA HSR SWI 21-002

Advanced fellowship program in mental illness research and treatment (Fellow)

Identify patient characteristics and health-service factors associated with EBP utilization and outcomes among Veterans with comorbid PTSD and substance use disorder. Assess mechanisms underlying a trauma integrated mindfulness-based intervention adapted for women with comorbid PTSD and substance use disorder.
Principal Investigator: Tsukuda and Boehnlein
Grant Source: VA NW MIRECC

You can find a full list of publications at PubMed.

  • Kaplan, J., Somohano, V.C., Eddy, A., Oken, B., & Wahbeh, H. (2022) Mindful non-reactivity moderates the relationship between posttraumatic stress disorder ad depression. Journal of Loss and Trauma, 1 – 15.
  • Somohano, V.C., Shank, T., Manuel, J., Mallik, D., Rehder, K., & Bowen, S. (2021). The role of pre-treatment expectancies on substance use outcomes in women mandated to Mindfulness-Based Relapse Prevention. Journal of Alternative and Complementary Medicine. Advanced online publication. doi: 10.1089/acm.2021.0123
  • Bowen, S., Dingle, T., Laue, C., Mallik, D., & Somohano, V.C. (2021). Overlaying Buddhist and Behaviorist lenses to better understand and address human suffering. Spirituality in Clinical Practice. Advance online publication. doi: 10.1037/scp0000275
  • Mallik, D., Kaplan, J., Somohano, V.C., Bergman, A., & Bowen, S. (2021). Examining the role of craving, mindfulness, and psychological flexibility in a sample of individuals with substance use disorder. Substance Use & Misuse. doi: 10.1080/10826084.2021.1899220


Chris Stauffer, MD
Chris Stauffer, MD

Chris Stauffer, MD is Associate Professor of Psychiatry at Oregon Health & Science University, Physician-Scientist with the VA Portland Health Care System, and dual board-certified in Psychiatry and Addiction Medicine. Dr. Stauffer is the Director of the Social Neuroscience & Psychotherapy Lab, which aims to maximize the benefits of psychotherapy through the adjunct use of social psychopharmacology, such as oxytocin, MDMA, and psilocybin. Current studies include psilocybin-assisted psychotherapy for Veterans with methamphetamine use disorder and MDMA-assisted group therapy for Veterans with PTSD. Dr. Stauffer serves as Supervisor and Educator of MDMA-Assisted Therapy and is a member of the Oregon Governor's Psilocybin Advisory Board.

You can learn more about Dr. Stauffer's projects on his website.

You can find a full list of publications at PubMed.

  • Sarparast A, Thomas K, Malcolm B, Stauffer CS. (2022) Drug-drug interactions between psychiatric medications and MDMA or psilocybin: a systematic review. Psychopharmacology.
  • Stauffer CS, Samson S, Hickok A, Hoffman WF, Batki SL. (2021) Intranasal oxytocin for stimulant use disorder among male Veterans enrolled in an opioid treatment program: A randomized controlled trial. Frontiers in Psychiatry. 12:804997. doi: 10.3389/fpsyt.2021.804997.
  • Stauffer CS, Anderson BT, Ortigo KM, Woolley J. (2020). Psilocybin-assisted group therapy and attachment: Observed reduction in attachment anxiety and influences of attachment insecurity on the psilocybin experience. ACS Pharmacology & Translational Science.


Donald Sullivan MD, MA, MCR
Donald Sullivan MD, MA ,MCR

Donald Sullivan, MD, MA, MCR is an Associate Professor and Associate Fellowship Program Director in the Department of Medicine, Division of Pulmonary and Critical Care Medicine at Oregon Health and Science University. He received his M.D. from the University of Arizona, and completed residency at the University of Maryland and fellowship at OHSU. His primary research focus is on improving the quality of palliative and end-of-life care among patients with serious illness. Dr. Sullivan is also interested in enhancing comprehensive cancer care among persons diagnosed with lung cancer. Specifically, he is interested in improving patients' and families' outcomes and experiences through advances in the delivery of care as well as patient participation in treatment decision making. He has methodological expertise in mixed-methods, qualitative, and population-based database research. Dr. Sullivan is or has been funded by the National Institutes of Health- National Cancer Institute and National Institute on Aging, American Thoracic Society, American Lung Association, the American Cancer Society, Borchard Foundation, Knight Cancer Institute, Medical Research Foundation, and UPENN Roybal Center. Dr. Sullivan also enjoys providing clinical research mentorship to medical students, residents, fellows, and post-doctoral candidates at OHSU and CIVIC. Dr. Sullivan teaches pulmonary medicine at the OHSU School of Medicine and within the Department of Medicine at OHSU. Clinically, he provides pulmonary and critical care medical services at OHSU.

You can contact Donald Sullivan by email at or at

Promoting Advance Care Planning Using a Prognosis and Outcome Information Sheet among Persons with Advanced Dementia in Long Term Services and Support Facilities (Principal Investigator)

The goal of this mixed-methods study is to develop, refine, and pilot test an advance care planning intervention among families of persons with advanced dementia.
Grant ID: NIH-NIA P30AG064105

A Lung Cancer Treatment Conversation Tool (Principal Investigator)

The goal of this study is to conduct a trial of a computer-based lung cancer treatment conversation tool to engage patients in shared decision making to improve patient-centered outcomes.
Grant ID: ATS Foundation/American Lung Association

Improving Decision Making in Lung Cancer: A Low-Literacy Conversation Tool (Principal Investigator)

The goal of this study is to develop and pilot-test a low-literacy lung cancer treatment conversation tool to engage patients in shared decision making to improve health and decisional outcomes.
Grant ID: MRF-New Investigator Award

Palliative Care for Patients with Chronic Respiratory Disease (Principal Investigator)

The goal of this project is to improve the quality of care and quality of life among patients with respiratory disease by developing a joint-society taskforce that will create a comprehensive policy-statement.
Grant ID: Cambia Sojourns Scholar Award

You can find a full list of publications at his bibliography.

  • Nugent SM, Golden SE, Sullivan DR, Thomas CR, Wisnivesky J, Saha S, Slatore CG. Patient-clinician communication and patient-centered outcomes among patients with suspected stage I non-small cell lung cancer: a prospective cohort study. Medical oncology (Northwood, London, England). 2022 Sep 29; 39(12):203
  • Nugent SM, Morasco BJ, Handley R, Clayburgh D, Hooker ER, Ganzini L, Knight SJ, Chen JI, Sullivan DR, Slatore CG. Risk of Suicidal Self-directed Violence Among US Veteran Survivors of Head and Neck Cancer. JAMA otolaryngology-- head & neck surgery. 2021 Nov 1; 147(11):981-989
  • Reinke LF, Sullivan DR, Slatore C, Dransfield MT, Ruedebusch S, Smith P, Rise PJ, Tartaglione EV, Vig EK, Au DH. A Randomized Trial of a Nurse-Led Palliative Care Intervention for Patients with Newly Diagnosed Lung Cancer. Journal of palliative medicine. 2022 Nov 1; 25(11):1668-1676
  • Sullivan DR, Gozalo P, Bunker J, Teno JM. Mechanical Ventilation and Survival in Patients With Advanced Dementia in Medicare Advantage. Journal of pain and symptom management. 2022 Jun 1; 63(6):1006-1013
  • Vranas KC, Golden SE, Nugent S, Valley TS, Schutz A, Duggal A, Seitz KP, Chang SY, Slatore CG, Sullivan DR, Hough CL, Mathews KS. The Influence of the COVID-19 Pandemic on Intensivists' Well-Being: A Qualitative Study. Chest. 2022 Aug 1; 162(2):331-345


Belle Zaccari, PsyD
Belle Zaccari, PsyD

Belle Zaccari, PsyD is an Affiliate Investigator at the VA Portland Health Care System (VAPORHCS), Center to Improve Veteran Involvement in Care (CIVIC), a staff psychologist in the Rural TeleMental Health Clinic of the VAPORHCS, and an Assistant Professor in the Department of Psychiatry at Oregon Health & Science University (OHSU). Her research interests include: telehealth modalities, chronic pain, posttraumatic stress disorder (PTSD), women Veterans, and complementary and integrative health (CIH). Dr. Zaccari is the PI on a Learning Health Systems K12 targeting CIH approaches for pain and PTSD in rural Veterans. She completed her PsyD at Adler University, Chicago in 2014 and completed a two-year advanced research postdoctoral fellowship at the VISN 20 Pacific Northwest Mental Illness Research, Education, and Clinical Center (MIRECC) in Portland, OR in 2016.

NW Center of Excellence & K12 in Patient Centered Learning Health Systems Science (Scholar)

The aims of this program are to recruit, train, and support 5 scholars at all times to become our nation’s leaders and innovators in learning health systems science; prepare scholars to design, implement, and disseminate patient-engaged, evidence-based, real-world research projects to ensure the uptake of research into improvements in health, health decision-making, and health care systems; and convene a cross-systems collaborative to promote cross-institutional scholar interactions, cooperative sharing of curricula, methodological advances, and promote multi-site project opportunities.
Principal Investigator: Guise, Savitz
Grant ID: K12 HS026370

Collaborative Telepain Care for Rural Veterans (Co-Investigator)

The goal of this pilot intervention trial is to examine the feasibility and acceptability of a nurse care manager-led pain care coordination intervention delivered via telehealth to improve clinical outcomes in patients with chronic pain.
Principal Investigator: Travis Lovejoy
Grant ID: ORH-15531

Virtual Yoga for Social Isolation and loneliness in Rural Veterans (Co-Investigator)

This project aims to understand how to expand access to rural Veterans through virtual yoga group classes, while simultaneously evaluating fidelity of the intervention using sensor technology and addressing underlying issues of social isolation and loneliness in the target population.
Principal Investigator: Alan Teo
Grant Source: VHA VRHRC-Portland FY22

You can find a full list of publications at PubMed.

  • Zaccari B, Loftis JM, Haywood T, Hubbard K, Clark J, Kelly UA. Synchronous Telehealth Yoga and Cognitive Processing Group Therapies for Women Veterans with Posttraumatic Stress Disorder: A Multisite Randomized Controlled Trial Adapted for COVID-19. Telemedicine journal and e-health : the official journal of the American Telemedicine Association. 2022 Mar 29
  • Zaccari B, Sherman ADF, Higgins M, Ann Kelly U. Trauma Center Trauma-Sensitive Yoga Versus Cognitive Processing Therapy for Women Veterans With PTSD Who Experienced Military Sexual Trauma: A Feasibility Study. Journal of The American Psychiatric Nurses Association. 2022 Jul 14; 10783903221108765