Medical and Nursing Staff

Sara Aierstuck, MSN, RN, FNP-BC
Director of Health and Counseling Services

Sara is a nurse practitioner with experience in college and university health centers at Yale University, University of Massachusetts/Amherst, and has been the director of HCHCS since 2009. She earned a B.A. from Franklin and Marshall College; M.S.N from Yale University, and is AANC board-certified as a family nurse practitioner.

Ronald A. Kelter, PA-C, Lic Ac, AAHIVS
Health Services Staff

Ron is a physician assistant and acupuncturist who joined the staff at Hampshire College in fall 2013. Ron has years of experience in general primary care to adults and adolescents as well as gastroenterology specialty practice. He is a graduate of Northeastern University's Bouve College of Pharmacy and Health Sciences with a master of health professions and completed a graduate-level program in traditional Chinese medicine at the New England School of Acupuncture. He is a certified HIV specialist through the American Academy of HIV Medicine. Ron graduated from Clark University with a B.A. in Psychology and Sociology.

Robert Horowitz, M.D.
Senior Staff Physician, University Health Services, University of Massachusetts Amherst

Dr. Horowitz is a consulting family medicine physician who worked at University Health Services, University of Massachusetts/Amherst from 1990-2014.  He has particular interests in behavioral medicine, including drug, tobacco, and substance use issues; mind-body medicine; and men's health. He is a graduate of Kenyon College and New York Medical College and did his residency at the University of Virginia. He lived and worked for 10 years with Native Americans in Arizona, on the Navajo reservation and with Pueblo tribes in the Santa Fe, NM area. He is American Board of Family Medicine certified and a member of the Massachusetts Medical Society and the American Society of Addiction Medicine.

Counseling Services

Eliza McArdle, Ph.D.
Director of Counseling Services

Eliza McArdle has been at HCHCS since 2003. She received her doctorate in clinical psychology from the University of Massachusetts and completed her advanced training through Harvard Medical School and the Massachusetts Mental Health Institute. She has been working in college mental health settings since 1996, and has additionally worked with the homeless and chronically mentally ill population in Boston. Eliza's clinical and research interests include the treatment of self-injurious behavior, eating disorders, and depression. She has a special interest in identity development and has extensive experience working with the LGBTQ community.

Stephen M. Klein, Ph.D.
Senior Psychologist

Stephen Klein has been with the College since 1972 and, until 2008, served as the director of mental health. Dr. Klein was trained at the University of Massachusetts and the University of California Medical School, San Francisco. He has a special interest in group psychotherapy and in the clinical application of psychoanalytic theory. Dr. Klein is also particularly attuned to issues around adoption and multi-cultural/racial families.

Corey Albert Griffin, Ph.D.
Staff Psychologist

Corey Albert Griffin is a psychologist who has worked in college mental health since 2003. She did graduate-level research studying online support groups. Corey uses an eclectic approach to therapy, integrating cognitive-behavioral and psychodynamic techniques and always trying to match her style to the needs of each individual client.

Angela Bardawil, LICSW
Staff Psychotherapist

Angela Bardawil has been an individual psychotherapist for over 20 years. She received her master's at Smith College School for Social Work and has continued to practice psychodynamic, psychoanalytically oriented psychotherapy with a variety of diverse populations. Angela is especially committed to issues of personal and cultural identity and to maintaining gains made in psychotherapy over time. She has experience in treating substance abuse and addiction, eating disorders, stress, depression, anxiety, and trauma as well as a wide variety of other issues, and is especially interested in the academic, social, and emotional issues that face college-aged individuals.

Kelsey Moran, MS
Psychotherapy Intern

Kelsey Moran is a pre-doctoral psychotherapy intern who is earning her doctorate in clinical psychology from Antioch University New England.  She earned her M.S. in clinical psychology from Antioch and her B.A. in psychology from The College of Saint Rose.  Kelsey has previous clinical experience in college counseling, community mental health, and inpatient psychiatric settings.  She uses an integrated approach, primarily drawing from feminist and multicultural theories, in order to work collaboratively with students and their individual needs.  Kelsey's clinical interests include working with people who are struggling with interpersonal difficulties, depression, and anxiety, as well as working with the LGBTQ+ community.

Rosie DeVincentis, BA, BS
Psychotherapy Intern

Rosie DeVincentis is a pre-doctoral psychotherapy intern working towards a Psy. D degree in clinical psychology at Antioch University New England. Rosie earned her B.A in Psychology and B.S in Human Services at Lyndon State College. She has experience with neuropsychological testing and counseling students surrounding Attention-Deficit Hyperactivity Disorder as well as learning-based disorders, and the emotional experiences that arise as a result of academic challenges. Rosie uses an integrated approach drawing from both psychodynamic and interpersonal theories. She has interest in couples work, as well as individual work that addresses the dynamics surrounding interpersonal relationships; familial, social, and

Lauren Weisbery, BA
Psychotherapy Intern

Lauren Weisberg is a pre-doctoral psychotherapy intern who is working on her doctorate in clinical psychology at Antioch University New England.  Lauren has previous experience with the inpatient psychiatric setting, where she worked with patients on psychological assessments, group therapy, and brief therapy.  She works from a feminist framework, integrating psychodynamic and relational approaches in an effort to build a strong relationship that provides a basis for therapeutic work.  Lauren’s clinical interests include working with those perceived as having a severe mental illness, individuals encountering interpersonal difficulties, and those seeking support for stress in their lives.

Lori Kinkler, Ph.D.
Postdoctoral Fellow

Lori Kinkler enjoyed completing a pre-doctoral internship at HCHCS from 2011-2013, so much so that she has returned this year to complete a postdoctoral fellowship. She received her doctorate in clinical psychology from Clark University, and additionally trained in college mental health at American University. Lori’s clinical and research interests include adoption and LGBTQ parenting. She approaches therapy from a relational standpoint, using the therapeutic relationship to illuminate relational patterns in clients’ lives. She has had additional training in acceptance and commitment therapy, and is comfortable tailoring treatment to the needs of each client.

Office Staff

Christine Casey
Office Coordinator

Kate Marques
Office Coordinator

Stay In Touch
With Health and Counseling Services
Snail Mail
Health and Counseling Services
Hampshire College
893 West Street
Amherst, MA 01002
Phone + Email