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About Our Staff

Obsessive Compulsive Disorder
Clinic and Research Unit Staff
Director

Sabine Wilhelm, Ph.D.
Sabine Wilhelm

Sabine Wilhelm, Ph.D., is Director of the OCD and Related Disorders Program at the Massachusetts General Hospital & Harvard Medical School. She is also the Founder and Director of the Body Dysmorphic Disorder Clinic & Research Unit, the Director of the Tic Disorders Program and the Director of the Cognitive-Behavior Therapy Program. She is an Associate Professor of Psychology (Psychiatry) at the Harvard Medical School. Dr. Wilhelm is a leading researcher in Obsessive-Compulsive Disorder (OCD), Body Dysmorphic Disorder (BDD), and Tic Disorders, and has published numerous articles, reviews, and chapters on the cognitive functioning, prevalence, and treatment outcome of these disorders. Currently, Dr. Wilhelm is the principal investigator of several NIMH-funded clinical research studies. In addition, Dr. Wilhelm recently authored a treatment manual for OCD entitled: Cognitive Therapy for Obsessive-Compulsive Disorder: A Guide for Professionals. She also recently wrote the self-help book Feeling Good About the Way You Look: A Program for Overcoming Body Image Problems. Dr. Wilhelm serves on numerous editorial and advisory boards, as well as the Scientific Advisory Board of the Obsessive-Compulsive Foundation, the International Obsessive-Compulsive Cognitions Working Group (OCCWG), and the Tourette Syndrome Association Behavioral Science Consortium. She is also the Chair of the Scientific Review Committee of the World Congress of Behavioral and Cognitive Therapies which will be held in Boston in June 2010. Her areas of clinical and research interest include the development, maintenance, and treatment outcome of BDD, OCD, and Tourette Syndrome/Tic Disorders.

   
  Publications by Dr. Wilhelm
 

Founder

Michael A. Jenike, MD
Michael Jenike, MD

Dr. Michael A. Jenike is the Medical Director of the Obsessive-Compulsive Disorder Institute at McLean Hospital and Founder of the Obsessive-Compulsive Disorders Clinic and Research Unit at Massachusetts General Hospital. He is also a Professor of Psychiatry at Harvard Medical School.

Dr. Jenike is recognized as a world-renowned researcher, having published over 200 articles on Obsessive-Compulsive Disorder, Geriatric Psychopharmacology and Neuroimaging in Psychiatric Disorders. He is currently the Principal Investigator of an OCD longitudinal family study that seeks to examine the clinical, genetic, imaging and neurocognitive areas of this disorder. His research and clinical interests involve the development, assessment and treatment of OCD and Alzheimer’s Disease.

   
  Publications by Dr. Jenike
 

Professional Staff

Maria Lynn Buttholph, MD
Maria Lynn Buttholph

Dr. Buttolph has been a staff psychiatrist and member of the Obsessive Compulsive Clinic since 1988. She participated in the original clinical trials that helped to determine effective medications for the treatment of OCD. She has treated a large number of patients with OCD, as well as OCD spectrum disorders including trichotillomania. She has published numerous papers and has written a chapter about OCD and pregnancy. She is an Instructor at the Harvard Medical School and at the Massachusetts General Hospital.

   
  Publications by Dr. Buttholph
 
Paul Cannistraro, MD
Paul Cannistraro

Dr. Paul Cannistraro is a staff psychiatrist at the Massachusetts General Hospital (MGH) Obsessive-Compulsive Disorders Clinic, as well as on the adult Inpatient Psychiatry Service. He is Instructor of Psychiatry at the Harvard Medical School and Research Fellow in Nuclear Molecular Imaging, Massachusetts General Hospital. Dr. Cannistraro attended Tufts University School of Medicine, Boston, MA, and completed his residency training in psychiatry at Johns Hopkins Hospital, Baltimore, Maryland. He came to MGH in 2002 to join the Psychiatric Neuroimaging Research Program as a fellow and to serve as a psychiatrist in the MGH Obsessive-Compulsive Disorders Clinic. Dr. Cannistraro has authored multiple articles and reviews in the neuroimaging of anxiety disorders including OCD and Post-traumatic Stress disorders. He has conducted research in functional magnetic resonance imaging, diffusion tensor imaging, and positron emission tomography.

   
  Publications by Dr. Cannistraro
 
Gregory Chasson, Ph.D.
Greg Chasson

Dr. Chasson received his Ph.D. in Clinical Psychology from the University of Houston in 2008. During graduate school, he trained as a cognitive-behavioral therapist and conducted research on a variety of topics, including the nature and treatment of autism, as well as treatment for child victims of violence. He also received specialized clinical and research experience for two years at The Menninger Clinic’s OCD Treatment Program, training as an extern and Research Coordinator. Dr. Chasson then completed his clinical internship at McLean Hospital, where he continues to collaborate on various research projects with the OCD Institute. As a Clinical and Research Fellow, he is now completing his post-doctoral training in the Department of Psychiatry at Massachusetts General Hospital, serving as both a Project Director for the Longitudinal Family OCD Study and cognitive-behavioral therapist for the OCD and Related Disorders Program. Dr. Chasson also maintains an academic appointment as a Clinical Fellow in Psychology in the Department of Psychiatry at Harvard Medical School.

   
  Publications by Dr. Chasson
 
Anne Chosak, Ph.D.
Anne Chosak

Anne Chosak, Ph.D., is currently a Clinical Assistant of Psychology (Psychiatry) at MGH. Dr. Chosak received her Ph.D. in clinical psychology from SUNY at Albany in 2000. She received her post-doctoral training at the OCD Clinic at MGH and was licensed in 2002. Dr. Chosak’s clinical and research background is in anxiety disorders of adulthood. Her current clinical and research interests and activities involve the OCD spectrum disorders of adulthood, including OCD, BDD, and trichotillomania (compulsive hair-pulling). In addition, Dr. Chosak currently supervises interns for the MGH clinical psychology internship program.

   
  Publications by Dr. Chosak
 
Thilo Deckersbach, Ph.D.
Thilo Deckersbach

Thilo Deckersbach, Ph.D., is a Staff Psychologist at the Massachusetts General Hospital (MGH) and an Instructor of Psychology at Harvard Medical School. Dr. Deckersbach specializes in the neuropathology and neuroimaging of Tourette Syndrome (TS), related tic disorders, and Obsessive-Compulsive Disorder (OCD). He is currently the Co-Principal Investigator for studies investigating habit reversal versus supportive therapy in the treatment of children and adults with TS and chronic tics. Dr. Deckersbach’s research is funded by the National Alliance for Research in Schizophrenia and Depression, as well as the Clinical Research and Training Program at Harvard Medical School.

   
  Publications by Dr. Deckersbach
 
Darin D. Dougherty, MD, M.Sc.
Darin Dougherty

Darin D. Dougherty, M.D., M.Sc., is Assistant Professor of Psychiatry at Harvard Medical School, Clinical Associate at Massachusetts General Hospital, Director of Medical Education at the Massachusetts General Hospital Obsessive-Compulsive Disorder Institute, Co-Director of the Massachusetts General Hospital Trichotillomania Clinic, Assistant Director of Massachusetts General Hospital Psychiatric Neuroimaging Group, Director of the Mood Disorders Section of the Massachusetts General Hospital Psychiatric Neuroimaging Group, Visiting Scientist at Massachusetts Institute of Technology, and serves on the Massachusetts General Hospital Psychiatric Neurosurgery Committee. He completed his residency in general psychiatry at Massachusetts General Hospital and is a graduate of the Clinical Investigator Training Program at Harvard Medical School and Massachusetts Institute of Technology.

   
  Publications by Dr. Dougherty
 
Jeanne M. Fama, Ph.D.
Jeanne Fama

Jeanne M. Fama, Ph.D., is a licensed clinical psychologist and the Director of High Risk and Vulnerability Research in the OCD and Related Disorders Program at Massachusetts General Hospital. She is a Clinical Assistant in Psychology (Psychiatry) at Massachusetts General Hospital and an Instructor of Psychiatry at Harvard Medical School. Dr. Fama completed her Ph.D. in Clinical Psychology at Harvard University and her clinical internship at Massachusetts General Hospital/Harvard Medical School.  She has received grants to pursue treatment-related, neuropsychological, cognitive, and family-related research in OCD, and has collaborated on several federally funded treatment projects. She has published on OCD-spectrum and Anxiety disorders and serves on the Scientific Advisory Board to the Obsessive-Compulsive Foundation. Dr. Fama also enjoys teaching psychology interns, postdoctoral fellows, and psychiatry residents in training at MGH as well as practitioners involved in the MGH Psychiatry Academy. She sees patients at MGH and in private practice.

   
  Publications by Dr. Fama
 
Jennifer L. Greenberg, Psy.D.
Jennifer Greenberg

Jennifer L. Greenberg, Psy.D., is a Clinical and Research Fellow in Psychology (Psychiatry) at the Massachusetts General Hospital/Harvard Medical School. Dr. Greenberg received her Psy.D. in Clinical Psychology from Rutgers, the State University of New Jersey, and completed her clinical internship at Massachusetts General Hospital/Harvard Medical School in 2008. Dr. Greenberg's clinical and research background is in anxiety and body image disorders, with a focus on the cognitive behavioral treatment of obsessive-compulsive spectrum disorders, including obsessive compulsive disorder (OCD), body dysmorphic disorder (BDD) and eating disorders. She began her research involvement with OCD and related disorders in 2001, and she has worked on several studies focused on the etiology, maintenance and treatment outcome of OCD spectrum disorders. Dr. Greenberg's primary research interest resides in treatment development and outcome of OCD spectrum disorders in pediatric populations. She is also interested in dissemination of empirically-supported treatments and patient and therapist factors that influence treatment outcome. Dr. Greenberg is currently involved in various neuroimaging and treatment studies for patients with OCD, BDD and tic disorders through the MGH OCD and Related Disorders Program. She also sees patients through the Adult Outpatient Department CBT Program and OCD clinic at MGH.

   
  Publications by Dr. Greenberg
 
Nancy Keuthen, Ph.D.
Nancy Keuthen

Dr. Keuthen is an Associate Professor of Psychology (Psychiatry) at Harvard Medical School and Massachusetts General Hospital (MGH), Co-Founder and Co-Director of the MGH Trichotillomania Clinic & Research Unit, and Chief Psychologist in the MGH Obsessive-Compulsive Disorder (OCD) Clinic & Research Unit. Dr. Keuthen received her Ph.D. in clinical psychology from SUNY at Stony Brook. She is internationally recognized as a leading clinician and researcher in trichotillomania. She has been instrumental in establishing awareness of, and improving treatment for this disorder. Dr. Keuthen serves on numerous editorial and advisory boards, including the Scientific Advisory Boards of the Trichotillomania Learning Center and the Obsessive-Compulsive Foundation. Her clinical, research, and teaching contributions have been largely focused on the cognitive-behavioral and pharmacological treatment of OCD and OCD-spectrum disorders, including skin picking, body dysmorphic disorder (BDD), and trichotillomania. She has authored numerous journal articles and book chapters and co-authored the popular book Help for Hairpullers.

   
  Publications by Dr. Keuthen
 
Luana Marques, Ph.D.
Luana Marques

Luana Marques, Ph.D., is a Clinical Research Fellow in Psychology (Psychiatry) at the Massachusetts General Hospital/Harvard Medical School. Dr. Marques completed her Ph.D. in Clinical Psychology at SUNY at Buffalo and her clinical internship at Massachusetts General Hospital/Harvard Medical School in 2007. Dr. Marques’ clinical and research background is in anxiety disorders, interpersonal functioning, and multicultural psychology. Dr. Marques' primary research interest is the interplay between diversity and psychopathology. Specifically, Dr. Marques’ research interests involve developing and testing Cognitive Behavioral interventions that are culturally sensitive for individuals suffering from various anxiety disorders.

   
  Publications by Dr. Marques
 
Jennifer Ragan, Ph.D.
Jennifer Ragan

Jennifer Ragan received her Ph.D. in Clinical Psychology from the University of Texas at Austin in 2005. There, Dr. Ragan received extensive training in cognitive-behavioral therapy and provided supervision to junior clinicians through Dr. Michael Telch's Anxiety Research Lab at the University of Texas at Austin. She then completed her clinical internship and post-doctoral training through Massachusetts General Hospital-Harvard Medical School. Dr. Ragan is now a licensed psychologist and sees patients through the OCD clinic at Massachusetts General Hospital and in private practice. Her clinical interests are broad, in that she treats patients suffering from anxiety, mood, and eating disorders using both individual and group modalities. Her research interests center around the assessment and treatment of anxiety disorders, Obsessive Compulsive Disorder, and Body Dysmorphic Disorder through Dr. Sabine Wilhelm's research lab.

   
  Publications by Dr. Ragan
 
Jedidiah Siev, Ph.D.
Jedidiah Siev

Jedidiah Siev, Ph.D, is a Clinical Fellow in Psychology (Psychiatry) at the Massachusetts General Hospital/Harvard Medical School. As a graduate student at the University of Pennsylvania, he received specialized training in empirically-supported treatments for OCD and related disorders, as well as other anxiety and internalizing disorders. Broadly speaking, Jed is interested in the roles of cognitive and family factors in the development and maintenance of internalizing disorders, especially OCD and related disorders, as well as psychotherapy outcome research investigating the contributions of active ingredients and common factors. Within the domain of OCD specifically, Jed’s research focuses on judgment and decision making processes relevant to symptoms, the roles of cognitive and meta-cognitive correlates of OCD, and issues relevant to the treatment of scrupulosity, an OCD presentation characterized by moral and/or religious fears.

   
  Publications by Jedidiah Siev
 
Evelyn Stewart, MD
Evelyn Stewart

Dr. Stewart is a staff child, adolescent and adult psychiatrist and a translational genetics researcher. She is an Assistant Professor of Psychiatry at Harvard Medical School, Director of the MGH OCD Residency Training module and Director of Research at the Obsessive-Compulsive Disorder Institute, McLean Hospital. She is an attending physician at both the MGH Pediatric OCD/ Tourette Disorder Clinic and at the MGH Obsessive-Compulsive Disorder and Related Disorders Clinic, and is a faculty member of the MGH Psychiatric and Neurodevelopmental Genetics Unit in the Center for Human Genetic Research. Dr. Stewart graduated from the Dalhousie University School of Medicine, Canada, and completed General psychiatry and Child psychiatry subspecialty residency training at the University of Ottawa, Canada. She subsequently completed an OCD research fellowship at McLean Hospital and Massachusetts General Hospital. She sits on the Scientific Advisory Board of the Obsessive-Compulsive Foundation. Her clinical, teaching and research efforts focus on the genetics of OCD, Trichotillomania and related illnesses, and on developmental aspects of OCD throughout the lifespan. Specifically, her work aims to translate emergent genetic findings into clinically useful diagnostic and management tools, to eventually improve outcomes for families with OCD and related disorders.

   
  Publications by Dr. Stewart
 
Kiara Timpano, Ph.D.
Kiara Timpano

Kiara R. Timpano, Ph.D., is a Clinical Fellow in Psychology (Psychiatry) at the Massachusetts General Hospital/Harvard Medical School, and a doctoral candidate at Florida State University. Ms. Timpano's clinical and research background is in anxiety and related disorders, with an emphasis on OCD. Her primary research interests lie in understanding the etiology, comorbidity, and maintenance of hoarding and OCD. She has also focused her efforts on vulnerability factor research and the development of prevention measures. Currently, she is working on several projects including the investigation of genetic and environmental vulnerability factors associated with OCD and hoarding, as well as an exploration of the phenomenology of compulsive hoarding.

   
  Publications by Kiara Timpano

Clinical Fellows

Hannah Reese, M.A.
Hannah Reese

Hannah E. Reese, M.A. is a Clinical Fellow in Psychology (Psychiatry) at the Massachusetts General Hospital/Harvard Medical School. She received her masters in clinical psychology from Harvard University where she is also currently pursuing her Ph.D. She has been at MGH since 2002 where she has served as project coordinator and study therapist for numerous studies on the etiology, maintenance, and treatment of OCD, BDD, Tourette Syndrome, chronic tic disorder, panic disorder, and social phobia. Ms. Reese’s primary research focus is in assessing the information processing biases that may be involved in the development and maintenance of Body Dysmorphic Disorder.

   
  Publications by Hannah Reese
 
 

Statistician

Aparna Keshaviah, M.S.
Aparna Keshiviah

Aparna Keshaviah holds a Master’s in Biostatistics from the Harvard School of Public Health and is a Fulbright scholar. With over 8 of experience in clinical investigation, she has been an integral part of numerous collaborative research teams, having designed, analyzed, and led Phase I-III studies in oncology, alternative medicine, and drug addiction. In addition to a career in biostatistics, Keshaviah is a classical Indian dancer and performs and teaches in Cambridge, MA. Her research into dance integrates scientific methodology with artistic exploration.

   
  Publications by Aparna Keshiviah
 

Intake Coordinators

Barbara Davidson, R.N.
Barbara Davidson

Barbara Davidson graduated from St.John's University in New York in 1970 with an Associates Degree in Early Childhood Education. She later received her RN degree from Pace University in Pleasantville, NY in 1983. Barbara was previously employed by the Belmont School Department prior to her work here at MGH, where she joined as an Intake Coordinator for the OCD, BDD and Trichotillomania clinics in 2003.

   
 
Katie Scales
Katie Scales

Katie currently works as an Intake Coordinator for the Massachusetts General Hospital/Harvard Medical School Obsessive-Compulsive Disorder (OCD), Body Dysmorphic Disorder (BDD), and Trichotillomania Clinics. She joined us in May of 2000.

   
 

Research Coordinators

Martha Falkenstein, B.S.
Martha Falkenstein

Martha Falkenstein graduated in 2009 from the University of Maryland with a B.S. in Psychology. Working with patients with OCD at McLean Hospital led to her interest in studying OCD spectrum disorders. Currently, Martha is working on treatment studies for Body Dysmorphic Disorder and Trichotillomania. After working at the OCD Clinic, she plans to pursue a doctorate in clinical psychology.

   
 
Eric Jenike, B.A.
Eric Jenike

Eric Jenike graduated in 2005 from The University of Massachusetts, Amherst with a BA in Biology. Eric has been at MGH since 2005 where he worked in Psychiatric Genetics on projects investigating the genetic predictors of Obsessive-Compulsive Disorder, Schizophrenia, Attention-Deficit Hyperactivity Disorder, and Major Depressive Disorder. Eric is currently works on a Body Dysmorphic Disorder treatment study. After his time at MGH, Eric hopes to pursue a career in medicine.

   
 
Jared Kant, B.A.
Jared Kant

Jared Kant graduated from Curry College in 2006 with a BA in English and Creative Writing. Through High School and college, he has worked with the Obsessive Compulsive Foundation in New Haven, CT. Jared is the author of The Thought That Counts. (Oxford University Press, 2008). Jared works as a Clinical Research Coordinator and the Senior Computer Technician at the OCD and Related Disorders Program. Currently, Jared is graduate student at the Simmons College School of Social Work.

   
 
Barbara Rosemberg, B.A.
Barbara Rosemberg

Barbara Rosemberg graduated from the University of Massachusetts, Amherst with a B.A. in Psychology. Barbara has been with the Partners Healthcare for the past 3 years. She previously worked at the Intensive Physiological Monitoring Unit at Brigham and Women’s Hospital as an On-Call Supervisor and Instructor for the Center for Clinical Investigation. Currently, Barbara is working in the Body Dysmorphic Disorder Clinic as the Program Manager.

   
 
Theresa Rowley, B.A.
Theresa Rowley

Theresa Rowley graduated in 2008 from Boston University with a BA in psychology. At Boston University Theresa worked at the Center for Anxiety and Related Disorders, where she assisted on research projects related to sleep disturbance and anxiety. Currently, Theresa is working on the Longitudinal Family OCD Study examining OCD in families. After working in the OCD Clinic, Theresa hopes to pursue a career in clinical psychology.

   
 
Ashley Shaw, B.A.
Ashley Shaw

Ashley Shaw graduated in 2009 from the University of North Carolina – Chapel Hill with a degree in Psychology. At UNC, Ashley worked in a Peer Relations Lab and researched how peers influence the development of eating disorders and substance abuse problems. Ashley also worked for the Autism Society of North Carolina as a Community Skills Instructor. At MGH, Ashley will work on the Longitudinal Family OCD Study. After working at MGH, Ashley plans to pursue a doctoral degree in Clinical Psychology.

   
 
Tracy Singer, B.A.
Tracy Singer

Tracy Singer graduated in 2008 from University of North Carolina- Chapel Hill with a Bachelor’s in psychology. While at UNC, Tracy worked on research projects related to OCD and became interested in similar anxiety disorders. Currently, Tracy assists on a study for Obsessive Compulsive Disorder. After her time at MGH, she intends to pursue a doctorate degree in clinical psychology.

   
 
Caitlin Taylor, B.A.
Caitlin Taylor

Caitlin Taylor graduated in 2008 from Middlebury College with a B.A. in psychology. At Middlebury, Caitlin worked as a research assistant on the Children's Memory Project. For her honors thesis, she examined the factors associated with children's credibility as eyewitnesses. At MGH Caitlin is working at the Body Dysmorphic Disorder clinic. Additionally, she will be working on treatment studies for trichotillomania. After her time at MGH, Caitlin plans to attend graduate school in clinical psychology.

   
 
Kaitlyn Welsh, B.A.
Kaitlyn Welsh

Kaitlyn Welsh graduated from Boston University in 2008 with a B.A. in Psychology. While at Boston University, Kaitlyn worked as a research assistant at the Center for Anxiety and Related Disorders on several stress related studies. Currently, Kaitlyn is working on the Longitudinal Family OCD Study. After working at the OCD Clinic, Kaitlyn plans to pursue a doctorate in Clinical Psychology.

   
 

Volunteers

Nicole LeBlanc
Nicole LeBlanc

Nicole LeBlanc is a senior at Tufts University and plans to graduate in 2010 with a B.S. in Clinical Psychology. During her sophomore year at Tufts, Nicole worked in the Cognitive Aging and Memory Lab where she assisted with research projects examining the contextual cues that younger and older adults rely on when making decisions and processing memories. Nicole is currently volunteering at MGH where she is assisting with a research project designed to examine the impact of ethnicity as a moderator of psychopathology. She is also working to complete an honors thesis that focuses on the role of ethnicity in Body Dysmorphic Disorder. After her time at MGH, Nicole hopes to pursue a career in clinical psychology.

   
 
Hilary Weingarden
Hilary Weingarden

Hilary Weingarden is an undergraduate student Tufts University.  She plans to graduate in 2010 with a B.A. in clinical psychology and Spanish.   During her sophomore year, Hilary served as a research assistant in the Neurocognitive Psychology lab at Tufts University, where she worked  on research on the neuroscience of language in healthy controls and patients with schizophrenia.  Hilary is currently a clinical research volunteer at MGH working on studies designed to examine the interplay between diversity and psychopathology .  In the future, Hilary hopes to pursue a Ph.D. in Clinical Psychology.