Department of Psychiatry

Penn Behavioral Health

Our Team


Clinical Staff

Leah Blain, PhD

Leah Blain, PhD
Clinic Director

Dr. Leah Blain serves as the Clinic Director for the Steven A. Cohen Military Family Clinic at Penn, where she oversees clinical, administrative, and outreach operations. Dr. Blain earned her M.A. and Ph.D. in Clinical Psychology, from the University of Missouri – St. Louis, where she received expert training in Cognitive Processing Therapy (CPT). She pursued additional training in trauma recovery during internship and postdoctoral fellowship at the VA Maryland Healthcare System, where she trained in Prolonged Exposure, Cognitive Behavior Therapy for depression, anxiety and panic disorder, and chronic pain, and mindfulness-based interventions. Dr. Blain has been a Project Director of four federally funded clinical trials and Principle Investigator of a trial testing Motivation Interviewing to enhance CPT outcomes.  She previously served as Director of Behavioral Health at Chase Brexton Health Care’s Columbia Center.


Ashleigh Adams, PhD

Ashleigh Adams, PhD
Licensed Psychologist

Dr. Ashleigh Adams is a psychologist; she received her M.A. and Ph.D. in Clinical Psychology from Temple University in Philadelphia and has worked with veterans at both the VA Pittsburgh Healthcare System and the Corporal Michael J. Crescenz Veterans Affairs Medical Center in Philadelphia, where she completed her internship and postdoctoral fellowship. She received specialized training in the assessment and treatment of posttraumatic stress disorder, substance use disorders, chronic pain, and aging issues. Dr. Adams also has extensive experience in couples therapy, as well as treatment for mood, anger, and aggression-related concerns. Her theoretical orientation is cognitive-behavioral with particular emphasis on family and interpersonal functioning.  Dr. Adams serves as an individual and couples therapist at the Steven A. Cohen Military Family Clinic.


Pete Freudenberger, LCSW

Pete Freudenberger, LCSW
Outreach Manager, Clinician

Mr. Freudenberger, an Army Veteran, serves as Outreach Manager and a staff clinician at the Steven A. Cohen Military Family Clinic. He received his Masters of Social Work from the University of Pennsylvania and was the first graduate of the PEARLS program (now the Cohen Veterans Network Scholars), which provides master's level clinicians with specialized training in mental health practice with veterans and their families.  He has spent his career working with private, non-profit, and government-run social service organizations, including the Bucks County Veterans Center and the Corporal Michael Crescenz VA Medical Center, where he played an integral role in the HUD/VASH team's efforts to end Veteran homelessness in the city of Philadelphia.


Joanna Goldstein, LCSW

Joanna Goldstein, LCSW
Licensed Clinical Social Worker

Ms. Joanna Goldstein, a Licensed Clinical Social Worker with over 20 years of experience providing a broad range of clinical services to adults, children and families, will provide assessment, case management and therapy at the Steven A. Cohen Military Family Clinic. She has worked in a variety of settings including community mental health, outpatient psychiatry, and schools providing biopsychosocial assessments, individual, group and family therapy, and case management. Ms. Goldstein received her Master's degree in Social Work from Simmons College. She completed post graduate training in Cognitive Therapy and Diagnostic Interviewing at the University of Pennsylvania as well as training in Couples and Family Therapy at the Cambridge Health Alliance, a Harvard Medical School teaching hospital. Ms. Goldstein is bilingual in Spanish.


Mattea LeWitt, LCSW

Mattea LeWitt, LCSW
Licensed Clinical Social Worker

Ms. Mattea LeWitt is a Licensed Clinical Social Worker who received her Master’s degree in social work from the University of Pennsylvania. While working in community mental health centers, she participated in training in Trauma-Focused Cognitive Behavioral Therapy and Prolonged Exposure Therapy. At the Steven A. Cohen Military Family Clinic, Ms. LeWitt provides therapy, assessment, and case management for individuals, children, and families. She specializes in helping people with trauma, depression, anxiety, family and relationship difficulties, stress, adjustment issues, and other behavioral health challenges. Ms. LeWitt practices from a strengths-based, holistic approach focused on health, mindfulness, and resilience.


Steven Sayers, PhD

Steven Sayers, PhD
Psychologist

Dr. Steven Sayers is an Associate Professor of Psychology in the Department of Psychiatry Perelman School of Medicine at the University of Pennsylvania and the Director of Advanced Fellowship Program in Mental Health Research and Treatment at the Corporal Michael Crescenz VA Medical Center. Dr. Sayers received his clinical and research training at the University of North Carolina in Chapel Hill, NC and has been a couple and family clinician and researcher for over 20 years. His current research focus is the impact of post-traumatic stress and depression on family reintegration of military service members deployed to Iraq and Afghanistan, as well as the role of family members in helping Veterans engage in mental health care. He also directs the national VA call center for family members concerned about the Veteran in their lives called Coaching Into Care.


Jonathan Smith, PsyD

Jonathan Smith, PsyD
Licensed Psychologist

Dr. Jonathan Smith is a psychologist, who earned his M.A. and Psy.D. from LaSalle University in Philadelphia, PA. He provides assessment, individual therapy, and couples therapy at the Steven A. Cohen Military Family Clinic. Dr. Smith has worked with Veterans during his postdoctoral fellowship at the Central Arkansas Veterans Healthcare System in Little Rock, AR. He also has experience working with diverse populations in community mental health settings, where his responsibilities included clinical care and oversight of a graduate student field placement program. Dr. Smith has received training in cognitive behavioral therapy, cognitive processing therapy, and acceptance and commitment therapy to promote recovery from depression, anxiety, PTSD, chronic pain, sleep difficulties, and psychosis. He also has a special interest in decreasing the impact of stigma on recovery


Michael Thase, MD

Michael Thase, MD
Psychiatrist

Dr. Thase is a Professor of Psychiatry in the Perelman School of Medicine at the University of Pennsylvania with a dual appointment at the Corporal Michael Crescenz VA Medical Center. A 1979 graduate of the Ohio State University College of Medicine, Dr. Thase is a Distinguished Fellow of the American Psychiatric Association, a Founding Fellow of the Academy of Cognitive Therapy, President-elect of the American Society of Clinical Psychopharmacology, and a member of the American College of Psychiatrists and the American College of Neuropsychopharmacology. Dr. Thase's research focuses on the assessment and treatment of mood disorders, including studies of the differential therapeutics of both depression and bipolar affective disorder.  Dr. Thase is Medical Director and treating psychiatrist at the Steven A. Cohen Military Family Clinic.


Ava Weiss

Ava Weiss
Social Work Intern

Ms. Ava Weiss is a social work intern at the Cohen Clinic. She is a second-year graduate student in the MSW program at the University of Pennsylvania School of Social Policy and Practice. She received her Bachelor's degree in Comparative Human Development from the University of Chicago, as well as a minor in Visual Arts. Ms. Weiss has experience working with children and survivors of interpersonal trauma, and plans to continue broadening her education and experience to prepare for a long career in behavioral and mental healthcare



Administrative Staff

Amelia AuBuchon, BS

Amelia AuBuchon, BS
Intake Coordinator

Ms. Amelia AuBuchon is the intake coordinator at the Steven A. Cohen Military Family Clinic. She is responsible for completing psychiatric screenings with prospective patients and coordinating intake assessments with clinicians. Ms. AuBuchon recently graduated from Fordham University with a Bachelor of Science in Psychology and a minor in Spanish. As an undergraduate, she worked as a research assistant in Fordham's Psychology Department, where her research focused on social support, resilience, relationships, parenting, work-family balance, and family psychology. Ms. AuBuchon hopes to continue her education and career in behavioral healthcare in the future.


Kirk Erwin

Kirk Erwin
Office Manager


Khamera Manders

Khamera Manders
Outreach and Follow Up Coordinator

Ms. Khamera Manders supports the Cohen Clinic’s outreach initiatives, follows up with clients to ensure our clients are still doing well, and connects clients with any additional resources. Ms. Manders earned her Bachelors of Science in Public Health from Temple in May and pursued opportunities to work in the field supporting health initiatives during her academic study, including doing outreach and follow up, with Lankenau Medical Center, Bryn Mawr Hospital, and the Philadelphia Women's Center.


Maira Peralta

Maira Peralta
Client Services Representative

Mrs. Maira Peralta has served as both a Certified Medical Assistant and Administrative Assistant in patient care for over ten years. Peralta is bi-lingual in Spanish and English and in addition to being passionate about providing quality care to clients by day, she is also working toward her Bachelors in Psychology by night.


Executive Committee


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