Meet The Team

Our Leadership

Robert Ostroff, MD, is currently a Clinical Professor of Psychiatry at Yale University and Medical Director of the Mood Disorders Unit at the Yale University School of Medicine/Yale Psychiatric Hospital. He also serves as Co-Medical Director of Interventional Psychiatry at the Yale Psychiatric Hospital. Dr. Ostroff received his medical degree from George Washington University School of Medicine in 1976 and was elected to the Alpha Omega Alpha Medical Honor Society. Dr. Ostroff specializes in Interventional Psychiatry, psychotherapy and medication management. He has published dozens of works on a number of topics regarding mood disorders and medication.   Dr Ostroff has also published over 200 newspaper and magazine articles about mental health issues. He is an active fundraiser for several non-profits related to mental health services.  He walks to work every day and bikes or hikes on weekends.

Dr. Enrique J. Tello has been with Spectrum Psychiatric Group since June of 2008. He received his MD from Facultad De Medicina – Pontificia Universidad Javeriana (Santa Fe De Bogota, Colombia). Dr. Tello completed his residency in psychiatry and a fellowship in psychosomatic
medicine at Baylor College of Medicine in Houston, Texas. Dr Tello is board certified by the American Board of Psychiatry and Neurology (ABPN).

Michael Vollmar, MD, graduated from Wayne State University Medical School in 1980 where he did a surgically oriented internship. Following medical school, Dr. Vollmar moved to New York City and spent the next four years doing emergency room medicine, ultimately realizing he wanted to do work that involved a more engaged relationship with patients. He then transferred to Yale and did a residency in psychiatry, spending the first four years of his career running the out-patient day hospital. During this time, he started his private practice and subsequently moved into full-time private practice. In the last decade, Dr. Vollmar expanded his involvement in the Interventional Psychiatry Service, where they treat treatment resistant depression. He continues to maintain a clinical affiliation with Yale University.

Ann is a Licensed Clinical Social Worker who began her clinical career in PA before relocating to CT . She has worked in various settings in both clinical roles and administrative. The thing she is most proud of is the work she did to establish an equine assisted therapy program in Northeastern Pennsylvania called Marley’s Mission. Her speciality areas are trauma recovery, addictions, grief, anxiety, depression . She is trained in Somatic Experiencing, TFCBT, Prolonged exposure, CBT, and equine assisted therapy. She is a certified expert witness on victim behavior and believes in the power of holistic healing .


Elaine Perkins has been with Spectrum Psychiatric Group for over 25 years. She originally started working in the Billing Department, was promoted to Billing Manger, and is currently Business Manager. Elaine has extensive knowledge in medical billing and office management. She is proud of the billing department team for helping everyone to make payment plans that work for them. Elaine has worked in Hamden her whole life and enjoys being able to support her community through her work at Spectrum Psychiatric Group and through community service.

Our Providers

Anthony (Tony) J. Colombrito, MS, NCC, LPC, completed his undergraduate studies at Ramapo College of Jersey and received his MS in Counseling from the University of Bridgeport. Tony completed his clinical internship with Family Services of Woodbridge (FSW) in Bridgeport, Connecticut where he worked with individual with chronic mental illness and provided behavioral health services through the FSW walk-in clinic. In his clinical work, he has conducted various forms of group therapy, along with individual, couples, and family psychotherapy across diverse, multicultural backgrounds in multiple agency settings. Tony’s background includes training in Forward Facing Trauma Therapy, Emotional Focus Therapy, Cognitive-Behavioral Therapy, Psychodynamic Psychotherapy, Solution-Focused Therapy, and Motivational Interviewing. 

Kristin Hale, APRN, graduated from Yale School of Medicine in 1985. As a college student, she began her medical career working in a busy city emergency room, it was then she decided on a nursing career working in public health and then mental health care. Kristin has been practicing in both in-patient and out-patient settings since 1983. It is an honor for her to serve the community.

Christina Iovanne, LCSW, specializes in Cognitive Behavioral Therapy (CBT) for mood disorders and has more than 10 years of clinical experience. She earned a master’s in social work from Southern CT State University and received formal CBT training from the Beck Institute. In addition to treating individuals in private practice, Christina works with the Yale Depression Research Program as a CBT therapist on a clinical trial involving the use of ketamine for treatment-resistant depression. When she isn’t working, Christina enjoys spending time with her family and listening to podcasts.

Rachel Katz, MD, completed her undergraduate studies at Northwestern University with a bachelor’s degree in religion and communication studies with a focus in dance technique and pre-medical studies. She completed her medical degree at Case Western University where she was elected into the Alpha Omega Alpha Honor Medical Society. Dr. Katz is currently an Assistant Professor of clinical psychiatry with a focus in interventional psychiatry and mood disorders at Yale Psychiatric Hospital.

Karen Orzack-Moore, LCSW, has been in practice for the past 30+ years. Graduating from Smith College School for Social Work, she initially worked as an inpatient therapist at Yale New Haven Hospital. She has been in private practice for over 30 years treating late adolescents, adults of all ages, women and men for all varieties of psychological disorders including depression, bipolar, anxiety and panic, obsessive compulsive disorders, eating disorders, and trauma. She is comfortable working with couples as well. Karen is holistic in her approach. She is able to integrate her understanding of the psychological, social and biological aspects of the human condition. Appreciating one’s past relationships and family systems are significant to Karen’s work with individuals. The import of current relationships and family systems are core to her working with individuals in conflict. Merging past with present, she is exploratory, supportive and uses cognitive behavioral techniques when needed, in an individualized way when working with patients. She is a good listener and has an engaging, interactive approach in creating comfortable dialogue between her patient and herself. She wishes to create a comfortable and trusting environment within the therapeutic session where patients feel free to open up, achieve greater understanding and make necessary changes. Karen truly likes people. Karen is a board member of the American Board of Examiners in Clinical Social Work and an active member of the Clinical Society of Psychoanalytic Psychotherapy. A life learner, Karen attends frequent seminars and conferences to enrich and update her knowledge. In addition to her family, Karen has a personal interest in the arts with a particular love of music, singing both classically and in Cabaret.

Nora Proops, MD, completed medical school at the Jacobs School of Medicine and Biomedical Sciences at the University at Buffalo and residency training in psychiatry at the Yale School of Medicine where she is now an Assistant Clinical Professor. Dr. Proops has experience working on the inpatient adult unit at the Yale New Haven Psychiatric Hospital as well as in delivering electroconvulsive therapy (ECT), repetitive transcranial magnetic stimulation (rTMS), and ketamine treatments for patients with treatment resistant depressive disorders. During the COVID pandemic, she also worked in the psychiatric emergency room evaluating patients in crisis. At Spectrum Psychiatric Group, Dr. Proops sees adult patients and uses an individualized approach to combine psychotherapy and medications to treat a wide range of conditions.

Kathryn Snow, LCSW, received a master’s in social work from Columbia University in 1994. Since then, she has worked with diverse populations in a variety of different settings. These setting include domestic violence services, group homes for chronic mental illness, child and family counseling clinics, home care as a medical and psychiatric social work, and managed care (outpatient and in-patient utilization management). Kathryn has been practicing at Spectrum since 2006 and though she currently works mainly with adults and geriatric populations she has a broad range of clinical experience working with individuals across the lifespan. Her specialties include anxiety disorders, depression and bipolar disorders, chronic mental illness, OCD, PTSD, and aging and health issues. Kathryn comes from a person-centered approach and utilizes skills and techniques that draw from various therapeutic modalities including Cognitive Behavioral Therapy, Solution-Focused Therapy, Dialectical Behavior Therapy, psychoeducation, mindfulness, and relaxation.

Carole Strong, RN, LCSW, gradated from Southern CT State University in 1989 and has worked in both disciplines (nursing and social work) for over 30 years. During this time she has worked with co-occurring disorders, in private practice as a clinician, and has managed and directed programs. Carole has worked at Spectrum as a contract clinician since 2015 and recently began working 32-hours per week. She is happy to be part of the Spectrum team.

Stefanie Thach, LCSW, has been working in the mental health field for over 20 years with individuals with cognitive limitations, the elderly, individuals/parents who have mental health challenges and children. She currently works primarily with adults assisting them to lead a life that they can enjoy and can connect with others and feel like they matter. Stefani has knowledge and experience with mood disorders, anxiety disorders, eating disorders, psychotic disorders, and some substance use disorders. She has been trained in Cognitive Behavioral Therapy through the Beck Institute and is passionate about helping people. Most recently, Stefani has been learning about trauma treatment models like Internal Family Systems Theory and Eye Movement Desensitization and Reprocessing (EMDR).

Kelly Vanasse is a  psychiatric nurse practitioner who obtained her MSN from Massachusetts College of Pharmacy and Health Sciences.  Kelly sees patients part-time on an outpatient basis at Spectrum Psychiatric Group and offers telehealth and in person appointments for goal-oriented, patient-centered psychiatric evaluations, medication management, and mental health treatment planning.

Dr. Wilkinson graduated from Johns Hopkins School of Medicine in 2012 and later completed his psychiatry residency and fellowship training at Yale University. He is currently an Assistant Professor at Yale and the Associate Director of the Yale Depression Research Program. His research interests include conducting clinical trials with novel therapeutics in depression as well as suicide prevention.



Our Office Staff