Meet Our Providers
UHS’ primary care and mental health providers are a diverse group of professionals with a wide range of clinical backgrounds and interests.
Scroll down to view our medical and mental health providers; click on a provider’s name to learn more about them.
Primary Care Providers
Alan Calhoun, M.D., Medical Director
Sara Aierstuck, R.N., F.N.P., Family Nurse Practitioner
Catherine D. Burbank, M.S.N., F.N.P., Family Nurse Practitioner
Sue Fields, R.N.C., Family Nurse Practitioner
Gail Gnatek, R.N., F.N.P., Family Nurse Practitioner
Margaret Gold, M.D., Staff Physician
Christine Horn, N.P., Nurse Practitioner
Robert Horowitz, M.D., Senior Staff Physician
Holly Kinnell-Rust, M.S., A.P.N.-B.C., Family Nurse Practitioner
Constance "Connie" Lentz, M.D., Staff Physician
Gregory W. Little, M.D., Staff Physician
Janet L. Martyn, R.N., N.P., Nurse Practitioner
Warren H. Morgan, M.D., Senior Staff Physician, UHS; Medical Director, Amherst College
Richmond L. Rosen, M.D., Staff Physician
Pierre Rouzier, M.D., Staff Physician
Richard J. Rubin, M.D., Senior Staff Physician
Ilana Levenson Schmitt, M.D., M.P.H., Staff Physician
Constance B. Schwaiger, M.S., F.N.P., Family Nurse Practitioner
Suzan Smith, M.D., Staff Physician
Rochelle Weber, M.D., Senior Staff Physician
Ann M. Zaveruha, R.N., F.N.P., Family Nurse Practitioner
Mental Health Care Providers
Harry Rockland-Miller, Ph.D., Clinical Psychologist,
Director of Mental Health Services
Stewart Ascher, M.D., Senior Staff Psychiatrist
Lynette Bloise, M.S.W., L.I.C.S.W., Associate Director
Edward Bruce Bynum, Ph.D., A.B.P.P.,
Principal Psychologist, Director of Behavioral Medicine
Frank DeZenzo, M.S.W., L.I.C.S.W., Psychiatric Social Worker
Barry Farber, M.D., Senior Staff Psychiatrist
Jim Helling, M.S.W., L.C.S.W., Associate Clinician, Athletic Health Enhancement Program
Kenneth R. Herbert, M.A., Associate Clinician
Benjamin F. Levy, M.D., Psychiatrist
Jennifer M. Lexington, Ph.D., Staff Psychologist
Kerry M. Morrison, Psy.D., Coordinator, Suicide Prevention Program
Kathryn A. Proulx, Ph.D., A.P.R.N., Advanced Practice Nurse
Lydia Rackenberg, M.S.W., L.I.C.S.W., Clinical Social Worker
Melissa Rotkewicz, Psy.D., Staff Psychologist
Linda D. Scott, Ph.D., Assistant Director for Consultation and Education
Natercia Teixeira, M.S.W., L.I.C.S.W., Senior Clinician
Amy Winters, M.S.W., L.I.C.S.W., Psychiatric Social Worker
