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Faculty Profiles

Alvaro Barriga, Ph.D

Dr. Barriga received his Ph.D. in developmental psychology from The Ohio State University in 1996, completing his pre-doctoral internship at Richland Hospital (in Mansfield, OH) and post-doctoral fellowship at Auberle (in McKeesport, PA). Dr. Barriga has been a licensed psychologist since 1999 and has conducted individual, couples, family, and multi-family therapies with children, adolescents, adults, and older people across a variety of outpatient, inpatient, residential, and medical settings. He currently provides assessment and treatment services within the Center for Traumatic Stress in Children and Adolescents, holding a certification in Trauma Focused Cognitive Behavioral Therapy. During his 15 years on faculty at Seton Hill University, he taught undergraduate and graduate courses in human development, psychopathology, assessment, research methods, and social psychology. Dr. Barriga has published in the fields of moral development, empathy, cognitive distortions, attention deficits, delinquency interventions, assessment, and grade inflation. He has provided consultation services to mental health, drug and alcohol, educational, and legal organizations. Dr. Barriga currently holds the position of Clinical Associate Professor through Temple University School of Medicine and provides seminars and clinical supervision to psychology interns and psychiatry residents at AGH. His approach to supervision strives to be individualized, collaborative, developmental, and culturally sensitive.

Hollie Dean-Hill, Psy.D.

The Associate Director of Training for the AGH Doctoral Psychology Internship. Dr. Dean-Hill is a licensed psychologist and clinical lifespan neuropsychologist. She primarily works with older children, adolescents and adults, providing outpatient psychological/psychodiagnostic and neuropsychological evaluations. Her interests include anxiety, mood, and behavioral difficulties, transgender identity development, ADHD, traumatic brain injury, neurological conditions (e.g., multiple sclerosis and stroke), pre-surgical evaluation, and the neurological impact of various medical conditions. She also has clinical training and experience in working with individuals who identify as LGBTQI, and survivors of childhood trauma and sexual assault. Dr. Dean-Hill assisted in developing the training structure for the Academy of the American Board of Professional Neuropsychology-recognized postdoctoral neuropsychology training programs. Dr. Dean-Hill became faculty at AGH in 2017, and was appointed Associate Director of Training in 2020. Dr. Dean-Hill is a National Register Health Service Psychologist and is a member of the Pennsylvania Psychological Association, the American Psychological Association, and the National Academy of Neuropsychology. Dr. Dean-Hill's approach to supervision is developmental and tailored to the intern.

Leah Russell Flaherty, PsyD

A licensed psychologist, located at the West Penn Institute For Pain Medicine in the enhanced pain program as a pain psychologist. She provides outpatient individual and group evidence-based practices including CBT and ACT for chronic pain. Her interests include the relationship between emotional and physical pain, suicidal thoughts and behaviors, Veterans issues, and control beliefs. Dr. Flaherty was trained in the Veterans Health Administration and as such has significant experience working with the impact of trauma (both physical and emotional) on the body and mind. She is a member of the National Register of Health Service Psychologists, the Pennsylvania Psychological Association, and the APA’s Society for Health Psychologists. She has finished data collection on a research project titled: The relation between locus of control and suicidal thoughts/behaviors which she presented at the American Association of Suicidology in 2019.

Michael Franzen, Ph.D.

Provides inpatient neuropsychological assessment services primarily to the trauma surgery, neurosurgery, and the general medicine services at AGH. He also provides outpatient neuropsychological services to children and adults. His approach to assessment involves the use of standardized test instruments with procedures to test the limits and obtain information related to subjective aspects of performance. Interpretation follows a procedure of examining standardized scores, observing qualitative aspects of performance, searching for patterns of performance, profile analysis and comparison to the theoretical and empirical literature. Individual training goals for the interns are agreed upon early in supervision sessions and revised as time progresses. The intern is encouraged to move toward professional independence. As with all training in the internship program, a developmental approach is taken in which each intern starts at a different level of activity based on their prior experience and engages in learning activities sequentially moving toward their training goals. Interns also have the opportunity to participate in forensic evaluations primarily related to civil action and personal injury cases on referrals from the legal system.

Matthew Iwaniec, PsyD

A licensed clinical psychologist who works with adults in inpatient and outpatient health care settings. He completed his doctorate degree at Indiana University of Pennsylvania, his internship in Clinical Health Psychology at The Ohio State University Wexner Medical Center, and his Postdoctoral Fellowship in Clinical Health Psychology at Cleveland Clinic Akron General. As a health psychologist, he provides consultation and liaison services to medical inpatients, conducts brief cognitive assessments, performs pre-surgical psychological evaluations, and delivers diagnostic assessment and psychotherapy to patients referred from specialty medical clinics. He also consults with integrated treatment teams and provides education to multidisciplinary trainees. Dr. Iwaniec primarily follows a cognitive-behavioral treatment approach integrated with third-wave intervention techniques and motivational interviewing. His professional interests include psychological adjustment to acute and chronic illness, anxiety disorders, mindfulness, executive function, adherence to medical treatment, wellness promotion, and integrated behavioral health. Supervision is one of his favorite elements of clinical practice. He takes a culturally informed approach to supervision that is collaborative and individually tailored to the student’s developmental level and current needs.

Nancy A. Kennedy, Psy.D.

The Director of Training for the AGH Doctoral Psychology Internship. Dr. Kennedy is a graduate of the Indiana University of Pennsylvania Clinical Psychology Doctoral Program and Allegheny General Hospital Internship Program. She is a licensed psychologist and a member of the National Register. Dr. Kennedy was the Associate Director of Training for the doctoral internship training program at Allegheny General Hospital prior to being named the Director of Training in 2016. Dr. Kennedy has served on the executive committee of the Department of Psychiatry for the past 20 years. She has extensive experience in inpatient, outpatient, partial hospital and IOP settings with adults. Her areas of interest include psychotherapy with groups and personality disorders.

Morgan Krumeich, Psy.D.

A licensed psychologist who provides evidence-based individual therapy for children, adolescents, and adults, presenting with a variety of psychological conditions.  Dr. Krumeich graduated from The George Washington University in 2014 with her Doctorate in Clinical Psychology. Prior to obtaining her doctoral degree, Dr. Krumeich obtained a Masters in Clinical Psychology from The George Washington University, as well as a Masters in Education (specializing in Applied Child Studies) from Vanderbilt University. In 2014, she spent five years working for the Sheppard Pratt Health System as the Clinical Coordinator of The Center for Eating Disorders Intensive Outpatient Program.  During this time, she also provided individual and group therapy to outpatients at The Center for Eating Disorders before moving to Pittsburgh and joining Psychiatry and Behavioral Health at AHN.

Anthony Mannarino, Ph.D.

The Director of the Center for Traumatic Stress in Children and Adolescents and Vice Chair, Department of Psychiatry, Allegheny General Hospital, Pittsburgh, PA. He is also Professor of Psychiatry at the Drexel University College of Medicine. Dr. Mannarino has been a leader in the field of child traumatic stress for the past 25 years. He has been awarded numerous federal grants from the National Center on Child Abuse and Neglect and the National Institute of Mental Health to investigate the clinical course of traumatic stress symptoms in children and to develop effective treatment approaches for traumatized children and their families. Dr. Mannarino has received many honors for his work, including the Betty Elmer Outstanding Professional Award, the Most Outstanding Article Award for papers published in the journal Child Maltreatment given by the American Professional Society on the Abuse of Children (APSAC), the Model Program Award from the Substance Abuse and Mental Health Services Administration for “Cognitive Behavioral Therapy for Child Traumatic Stress”, and the Legacy Award from the Greater Pittsburgh Psychological Association. Dr. Mannarino has completed two-year terms as the President of APSAC and the President of the Section on Child Maltreatment, Division of Child and Family Policy and Practice, American Psychological Association. He is one of the co-developers of Trauma-Focused Cognitive-Behavioral Therapy (TF-CBT).

Kathryn McCarthy, Ph.D.

Kathryn McCarthy, Ph.D. is a licensed psychologist specializing in obesity, weight management and health behavior change.  Dr. McCarthy provides brief evidence-based interventions for food- and eating-related behaviors as well as general stress management and psychological adjustment.  She conducts pre-surgical psychological evaluations to determine readiness for bariatric surgery, and provides follow-up care to patients struggling with weight regain or difficulties adjusting after surgery.  

Dr. McCarthy received her doctoral degree in Clinical Psychology with a specialization in Behavioral Health from Alliant International University in San Diego, CA.  She completed a pre-doctoral and post-doctoral fellowship at Allegheny General Hospital specializing in Behavioral Medicine and Integrated Care.  

Dr. McCarthy is a member of the American Society for Metabolic and Bariatric Surgery, the American Psychological Association, the Society of Health Psychology, and the National Register of Health Service Psychologists.

Matthew Page, Ph.D., ABN

A clinical lifespan neuropsychologist who primarily provides outpatient neuropsychological and psychodiagnostic evaluations for children, adolescents, and adults. Dr. Page completed his doctorate in Child and Family Clinical Psychology at the University of Miami. He completed his pre-doctoral internship at Allegheny General Hospital with an emphasis on neuropsychology. He also completed his post-doctoral fellowship in lifespan clinical neuropsychology at Allegheny General Hospital. He became board-certified with the American Board of Professional Neuropsychology in 2019, and he maintains membership with the National Academy of Neuropsychology and the American Psychological Association. Dr. Page sees a wide range of clinical presentations, but his clinical interests include ADHD, learning disorders, and neurological conditions (such as multiple sclerosis, Parkinson’s disease and epilepsy). He also has a clinical and research background in working with LGBTQ youth and navigating the coming out process within the family system. He continues to provide diagnostic and some therapy services for LGBTQ individuals and people living with HIV. He also maintains some activity in contributing to the scientific literature through publication and presentations. Dr. Page takes a developmental approach to supervision, tailoring the neuropsychology rotation experience to the intern’s individual needs, experience, and areas of interest.

Marisa L. Panucci, PsyD

A licensed clinical psychologist who provides individual outpatient therapy for adults and older adults ages 18 years and older, presenting with a diverse range of psychological conditions. Additionally, she provides assistance in the Adult Intensive Psychiatric Day Treatment Program providing group therapy for individuals with acute mental health concerns and personality disorders.  She received her doctorate degree in Counseling Psychology from Carlow University and completed both her pre-doctoral internship and postdoctoral training in Clinical Psychology at Allegheny General Hospital and West Penn Hospital.  Dr. Panucci is a member of the Pennsylvania Psychological Association and the National Register of Health Service Psychologists. 

Sarah Paul, Psy.D.

Earned her doctorate degree from Carlow University after completing a pre-doctoral internship at Georgia Southern University’s Counseling Center in Statesboro, Georgia and also defending her dissertation that examined relations between different variables (mindfulness, coping self-efficacy, and alexithymia) and emotional eating behavior. Dr. Paul completed her one year Postdoctoral Fellowship in Clinical Psychology at Allegheny General Hospital (AGH). Now a licensed psychologist, Dr. Paul generally works with young adults and adults presenting with anxiety, depressive, substance use, and eating disorders in individual psychotherapy. She most commonly integrates humanistic, mindfulness, CBT, and Dialectical Behavior Therapy interventions when working with clients. Additionally, Dr. Paul has experience conducting psychological assessment for clients participating in AGH’s Partial Hospitalization/Intensive Outpatient Program as well as for clients seeking various medical procedures such as spinal cord stimulator or bariatric procedures. Dr. Paul is a National Register Health Service Psychology Scholarship recipient. Dr. Paul enjoys helping trainees navigate and reach their educational goals from a developmental lens, along with using supervision to explore the trainee's strengths and challenges when working with therapy clients.

Kimberly Fleming Pedersen, Ph.D.

A faculty member of the AGH Pre-Doctoral Psychology Internship. She received her PhD in Clinical Psychology from the University of Missouri in 2016 with a graduate minor in Psychological Statistics and Methodology. She completed her pre-doctoral internship at the University of Kansas Medical Center in Kansas City, KS with an emphasis in Underserved Populations followed by a post-doctoral fellowship in Advanced Clinical and Health Psychology at the University of Kansas Medical Center. Dr. Pedersen has been a licensed psychologist since 2017 and has conducted individual therapy with medical populations of adolescents, adults, and older people in inpatient, outpatient, and integrated care settings. She currently practices as a health psychologist within Allegheny Health Network, conducting pre-surgical psychological evaluations for stem-cell transplant and heart transplant candidates, consultation and liaison services on medical-surgical units at West Penn Hospital, and individual therapy and brief consultation as part of integrated care teams in Hematology and Cellular Therapy, Internal Medicine, and the Esophageal and Lung Institute at West Penn Hospital. Dr. Pedersen has published in the field of addiction, executive functioning, personality, and health disparities. She has taught courses to medical students, residents, and behavioral health professionals on topics such as integrated behavioral health, motivational interviewing, Dialectical Behavioral Therapy, Multicultural competency, and LGBTQ patient care. Dr. Pedersen currently holds the position of Clinical Assistant Professor through Temple University School of Medicine and Drexel University School of Medicine and provides seminars and clinical supervision to psychology practicum students, and psychiatry residents at AGH and at West Penn. Her approach to supervision strives to be inclusive, developmental, and culturally informed.

Bruce Rohrs, Ph.D.

Earned his doctorate from Ohio University He has over 25 years of experience in supervising trainees at all levels of preparation for professional practice. His focus is on integrating aspects of professional development for a long term, sustainable, and enjoyable career. His professional experience has been predominantly in outpatient community mental health, working with the spectrum of adult disorders and problems. In particular, he enjoys working with clients with Axis II issues. He has recently developed an interest in working with trauma-based pathology utilizing EMDR.

Lorelei Simpson Rowe

Received her Ph.D. in clinical psychology from the University of California, Los Angeles in 2005. She completed her internship and post-doctoral fellowship at the University of California, San Diego/San Diego VA Healthcare System. After completing her training she moved to Dallas, Texas to take a faculty position in the Department of Psychology at Southern Methodist University. During her time at SMU she taught and mentored graduate students in research and clinical practice, was one of the directors of the Ph.D. program in clinical psychology, and conducted research on couple relationships, couple therapy, and sexual violence. She also maintained a small private practice. Dr. Rowe came to AHN in 2018 to take advantage of the opportunities for clinical practice in an integrated setting and training and supervising students and to continue her research in a clinical setting. She specializes in cognitive behavioral therapy and third wave behavioral therapies for mood and anxiety disorders, couple therapy for relationship distress and to help couples coping with stressors, and assertive resistance training for young women to use in response to unwanted sexual advances.

Hilary Rushton, Psy.D.

A licensed psychologist who specializes in providing trauma therapy to children, adolescents, and adults. Dr. Rushton uses an integrative approach rooted in a Person-Centered, Multicultural framework, incorporating Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy, and therapeutic art interventions. She is trained in Trauma Focused-CBT and Cognitive Processing Therapy and values adapting evidence-based treatments in light of the unique identities, needs, interests, and strengths of her patients.  Dr. Rushton’s clinical interests include complex trauma, resilience, intersectionality, expressive therapies, as well as addressing health disparities affecting historically marginalized communities. She is experienced in providing LGBTQ+ affirming and sex-positive therapy. Dr. Rushton also has training and experience in providing psychodiagnostic assessments across the lifespan. She completed her Pre-Doctoral Internship at AGH’s Department of Psychiatry and her Post-Doctoral Fellowship at AGH’s Department of Psychiatry and Central Outreach Wellness Center, a nearby LGBTQ+ health clinic. Within the department, Dr. Rushton is a member of the Diversity and Inclusion Committee. As a supervisor, Dr. Rushton encourages flexibility, creativity, and self-reflection in approaching clinical work and takes a strengths-based approach. 

Victoria-Maria Sekunda, Psy.D.

A clinical neuropsychologist, providing both C&L evaluations at AGH and outpatient neuropsychological evaluations. She conducts neuropsychological evaluations and diagnostic assessments, primarily with older adults on an outpatient basis. Her clinical interests include memory disorders, complex medical and psychiatric diagnoses, movement disorders, strokes, and head injuries. She also has a research background working with individuals with HIV Associated Neurocognitive Disorder. Dr. Sekunda earned her doctorate degree in Counseling Psychology at Carlow University after completing a pre-doctoral internship at Tewksbury Hospital in Tewksbury, Massachusetts. She completed her postdoctoral fellowship in clinical neuropsychology at Allegheny General Hospital. Dr. Sekunda is a member of the National Academy of Neuropsychology and the International Neuropsychology Society. She enjoys developing collegial relationships with trainees, while simultaneously catering to developmentally appropriate training needs.

Lori Siegel, Ph.D.

Works with older adolescents and adults who present with a variety of symptoms including those related to mood disorders, anxiety disorders, and substance abuse. While Dr. Siegel conceptualizes personality and psychopathology from a psychodynamic perspective, she also has extensive experience in applying cognitive, behavioral, and motivational techniques. Her approach to supervision is collaborative in terms of setting personal goals but always aims to increase the supervisee’s confidence and trust in his/her therapeutic insights and skills. Other areas of focus in supervision include the therapist-patient relationship, case conceptualization, and analysis of countertransference.

Alyssa Stiver, Psy.D.

Alyssa Stiver, PsyD, is a licensed clinical psychologist who primarily works with children, adolescents, and emerging adults to provide outpatient therapy and psychological assessment. Specifically, Dr. Stiver specializes in treatment of anxiety, depression, disruptive behaviors, conduct-related problems, attention-deficit/hyperactivity disorder, adjustment issues, and Autism Spectrum Disorder. Dr. Stiver provides psychological evaluations to clarify diagnostic presentation for a variety of neurodevelopmental, behavioral, and mood-related concerns. She has specialized training in administering the Autism Diagnostic Observation Schedule, 2nd Edition. Dr. Stiver previously worked at Children’s Hospital of Pittsburgh in the Child Development Unit where she specialized in the diagnosis and treatment of children with Autism Spectrum Disorder and related concerns. She joined the faculty at AHN in April 2020. Dr. Stiver completed her doctoral training at Indiana University of Pennsylvania and APA accredited internship and postdoctoral fellowship at Mount Washington Pediatric Hospital in Baltimore, MD. She is a member of the American Psychological Association. Dr. Stiver takes as cognitive behavioral approach to supervision while also assuming a developmental style of training

Rebecca Weinberg, Psy.D.

Works in the Women’s Behavioral Health program treating women with depressive, anxiety and/or bipolar disorders who are currently pregnant, postpartum, engaged in fertility treatment or who have experienced pregnancy loss. She conceptualizes psychopathology using a biopsychosocial model, and uses interpersonal psychotherapy, cognitive-behavioral, and mindfulness approaches in training and in treating perinatal mood and anxiety disorders. Supervision is flexible and collaborative. It can involve verbally discussing cases as well as the use of direct observation or co-therapy.

Richard Withers, Ph.D.

An experienced clinical psychologist and teacher specializing in psychotherapy with children, adolescents and parents. He integrates cognitive behavioral and psychodynamic theory and practice in training interns and in treating diverse problems among children and adolescents and their families. Dr. Withers has particular interests in the use of play, art and story-telling in therapy with children. He is trained in Parent Child Interaction Therapy and clinical hypnosis with adults and children. Other areas of training and interest include mental health assessment for bariatric surgery and the treatment of eating disorders. Dr. Withers is an Assistant Clinical Professor of Psychiatry of Temple University School of Medicine and Drexel University. He has taught both graduate and undergraduates at the University of Pittsburgh, Seton Hill University and Waynesburg University.