Adult Partial Hospital Multidisciplinary Team

Director, Partial Hospital Program and Adult Outpatient Psychiatry

Mark Zimmerman, MD received his medical degree from Chicago Medical School. He completed his postgraduate training at the Medical College of Pennsylvania.

Dr. Zimmerman is board certified in psychiatry and is professor of psychiatry and human behavior at The Warren Alpert Medical School of Brown University. 

He is principal investigator of the Rhode Island Methods to Improve Diagnostic Assessment and Services (MIDAS) project. Dr. Zimmerman is the author of more than 300 articles and serves on the editorial board of 10 journals.

He is the author of the recently revised Interview Guide for Evaluating DSM-5 Psychiatric Disorders and the Mental Status Examination, a leading textbook for psychiatric diagnosis and assessment. 

Director, Adult Inpatient Psychiatry, Rhode Island Hospital

Arnaldo A. Berges, MD, is a psychiatrist and director of the division of adult inpatient psychiatry at Rhode Island Hospital. He is a clinical assistant professor of psychiatry and human behavior at The Warren Alpert Medical School of Brown University. He has worked on Lifespan’s transition to LifeChart and its implementation in behavioral health. 

Dr. Berges’ research interests include mood stabilization and maintenance of seizure control, delirium and dementia, chronic schizophrenia and severe Parkinsonism. His work on these subjects has been published in peer-reviewed journals. He is a member of the American Psychiatric Association, the Association of Gay and Lesbian Psychiatrists, and the Rhode Island Psychiatric Society.

Clinical Psychologist

 
Kristy Dalrymple, PhD, is a licensed clinical psychologist, associate director of the outpatient psychiatry practice at Rhode Island Hospital, and director of adult psychology at Rhode Island and The Miriam hospitals.

Dr. Dalrymple received her doctorate from Drexel University.  She completed her residency in psychology at the State University of New York Upstate Medical School and her fellowship in clinical research at the Alpert Medical School.

She is an assistant professor (research) in the Alpert Medical School department of psychiatry and human behavior. She is a member of the Association for Behavioral and Cognitive Therapies and the Association for Contextual Behavioral Science, and serves as an associate editor for the Journal of Contextual Behavioral Science.  
 

Assistant Director, Rhode Island Hospital Adult Partial Hospitalization Program

Catherine D’Avanzato, PhD is a clinical psychologist and the assistant director of the Rhode Island Hospital Adult Partial Hospitalization Program. She is assistant professor of psychiatry and human behavior at The Warren Alpert Medical School of Brown University. Dr. D’Avanzato received her doctorate in clinical psychology from the University of Miami and completed her residency in clinical psychology, as well as a clinical research fellowship, at The Warren Alpert Medical School of Brown University.

Dr. D’Avanzato is a member of the Association for Behavioral and Cognitive Therapies, the Association for Contextual Behavioral Science, and the Anxiety Disorders Association of America. She is the author of scientific publications on the etiology, assessment and treatment of posttraumatic stress disorder and related mood and anxiety disorders.
 

Psychologist

Kristin C. Davidoff, PhD, is a psychologist with Lifespan Physician Group and a member of the care team for Rhode Island Hospital’s Adult Partial Hospital Program. She completed her postdoctoral fellowship in clinical psychology, with an emphasis on severe mental illness at the Providence VA Medical Center, through The Warren Alpert Medical School of Brown University.

Dr. Davidoff's research interests include the impacts of microaggressions on marginalized populations and mental health stigma.

Psychologist

Ruth L. Firmin, PhD, is a psychologist at the Adult Partial Hospital Program at Rhode Island and Newport hospitals. She earned her PhD in clinical psychology from Purdue University Indianapolis with a clinical internship at Yale School of Medicine. She also completed a postdoctoral research fellowship at UCLA, and a clinical fellowship at The Warren Alpert Medical School of Brown University and the Providence VA Medical Center.

Dr. Firmin’s professional interests center around helping individuals with acute mental health challenges pursue the lives they wish to live. Her research, funded by the American Psychological Foundation, investigates stigma resistance--immunity to negative effects of stigma--and has been published in peer reviewed journals and presented nationally and internationally. She is a member of the American Psychological Association (APA), the Society for Research on Psychopathology, and the APA Psychologists in Public Service. 

Psychiatrist

Aryan Fotros, MD, MSc, is a board-certified psychiatrist at Lifespan Physician Group Psychiatry who specializes in neuropsychiatry. She completed her graduate studies in neuroscience at McGill University in Montreal and postdoctoral research fellowship at Harvard University. She earned her medical degree from Azad University Tehran Medical School in Iran. Dr. Fotros completed her psychiatry residency at the University of California Medical Center in San Diego (UCSD). In her final year of residency training, she served as the chief resident of the drug and alcohol unit at the VA hospital in San Diego. She completed her fellowship in neuropsychiatry at Stanford University School of Medicine, where she received training in complex neuro-psychopharmacology, interventional neuropsychiatry and a variety of psychotherapy orientations, including cognitive and behavioral therapy, virtual reality therapy and hypnosis and prolonged exposure. 

Dr. Fotros has produced over 20 publications and presentations at the national and international levels. Dr. Fotros has been the recipient of several awards and scholarships including UCSD Lewis Judd Resident Research Award for her research work investigating the effect of marijuana on the adolescent brain. She is interested in working with a diverse population and providing integrated patient care, using variety of talk therapy techniques as well as comprehensive medication management that meets unique and individual needs of patients. Dr. Fotros is a member of the American Psychiatric Association, the American Neuropsychiatric Association and the American Group Psychotherapy Association.

Adriana Hyams, PhD, is a psychologist at the Adult Partial Program at Rhode Island Hospital and the Family Therapy program. She earned her doctorate in clinical psychology with a concentration in geropsychology at the University of Alabama. Her predoctoral training was completed at VA Palo Alto Health Care System in the geropsychology track, and her postdoctoral fellowship was completed at the Providence VA Medical Center and Brown University.

Her clinical interests include hearing loss, tinnitus, palliative care, and general mental health.  She has authored peer-reviewed publications on hearing loss and quality of life issues; psychotherapy with older adults; racial, ethnic, and cultural diversity; and bipolar disorder among older adults.

Sarah McCutcheon, MA
Acute Care Psychotherapist

Sarah McCutcheon, MA, is an acute care psychotherapist at the Rhode Island Hospital Partial Hospital Program.

She received her master of arts degree in counseling psychology from William James College (formerly the Massachusetts School of Professional Psychology) in Newton, Massachusetts.

Psychiatrist

Lucille Bess Mehring, MD, is a psychiatrist in the Rhode Island Hospital Partial Hospital Program.

Dr. Mehring received her medical degree from Jefferson Medical College in Philadelphia and completed her residency in family medicine and psychiatry at the University of Iowa Hospitals and Clinics. Dr. Mehring is board certified in psychiatry.  

 
 

Christina Mele, PsyD, is a clinical psychologist at the Rhode Island Hospital Adult Partial Hospital Program. 

Dr. Mele received her doctorate from the Graduate School of Applied and Professional Psychology at Rutgers University. She completed her predoctoral training at the VA Hudson Valley Healthcare System and her postdoctoral fellowship at New York Presbyterian Hospital/Weill Cornell Medicine. She has extensive experience delivering evidence-based treatments for a variety of presenting problems, including posttraumatic stress disorder, perinatal mood disorders, anxiety disorders, and depression. 

Dr. Mele has also worked with various populations across the lifespan, including children, adults, and their families, and military service members and veterans. Dr. Mele is a member of the Association for Behavioral and Cognitive Therapies, Society for the Psychology for Women, and the Society for Military Psychology.
 

Molly Z. Meth, PhD, is a psychologist with the Adult Partial Hospitalization Program at Rhode Island Hospital. She received her PhD from the University of Iowa and completed her fellowship at Providence VA Medical Center as part of The Warren Alpert Medical School of Brown University Training Consortium. Dr. Meth is a generalist who is interested in working with patients who suffer from a range of mental health concerns. She has a background in health psychology and experience working with veterans. 

Psychiatrist

Sumi Moon, MD specializes in psychiatry with a specific focus on combining biological and psychodynamic approaches to medicine. Dr. Moon has dedicated much of her career to promoting holistic and integrated patient care, as well as serving the psychiatric care of patients with varied medical conditions.

After completing her resident training at the University of Pennsylvania, Dr. Moon completed her fellowship at MD Anderson Cancer Center at the University of Texas, where she exclusively served cancer patients' psychiatric needs. Her expertise lead to a position at the Lahey Hospital and Medical Center in Massachusetts as director of consultation and liaison services. Dr. Moon has served in various leadership roles, including a position as assistant professor at Tufts University School of Medicine. She is board-certified in general psychiatry and psychosomatic medicine.

Dr. Moon is deeply committed to the continued care of patients with changing mental statuses. She formed a specialty task force dedicated to caring for these patients during her time at the Lahey Hospital and Medical Center. She also provides psychiatric care of patients with medical conditions. She currently serves at the Partial Hospital Program at Rhode Island Hospital.

Psychologist

Rachel B. Ojserkis, PhD, is a psychologist in the Adult Partial Hospitalization Program at Rhode Island Hospital. She has clinical experience working with anxiety disorders, PTSD and trauma, depression, and eating disorders. In addition, Dr. Ojserkis’s research interests include affective (particularly disgust) and mindfulness-based processes in anxiety and trauma-related disorders. She is a member of the Association for Behavioral and Cognitive Therapies, the Anxiety and Depression Association of America, and the Association for Contextual Behavioral Science. 

Cerena Y. Reid-Maynard, MSW, LICSW

Thomas Sheeran, PhD, is a clinical psychologist with the Aging Family and Caregiver Program, the Adult Partial Hospital program at Rhode Island Hospital, and the Family Therapy program

Dr. Sheeran received his PhD in clinical psychology from the University of Virginia. He completed postdoctoral training at The Warren Alpert Medical School of Brown University (clinical research) and at the Institute of Geriatric Psychiatry, Weill-Cornell Medical College (geriatric mental health services).

Vanessa Wu, PhD, is a clinical psychologist with the Adult Partial Hospital Program at Rhode Island Hospital. Dr. Wu completed her PhD in clinical psychology from the California School of Professional Psychology, Alliant International University, San Diego. 

Dr. Wu completed her clinical psychology residency at the Waianae Coast Comprehensive Health Center, Hawaii. She completed her fellowship in clinical psychology at The Warren Alpert Medical School of Brown University, Rhode Island Hospital. Her clinical interests include working with PTSD and other trauma-related issues, and her research is focused on trauma, emotion regulation, and cultural issues affecting patients. 
 
Dr. Wu is a member of the American Psychological Association, the Asian American Psychological Association, and the Association for Contextual Behavioral Science. She is fluent in English and Mandarin Chinese.