Our Team

Gary Phillips, MPA

A Licensed Nursing Home Administrator, has held senior management positions in both the private and public healthcare sectors, in acute and long term care settings. His broad scope of experience affords him a shared understanding and appreciation for the complexities of the business and the extraordinarily high expectations set by the regulatory agencies and accrediting bodies. As Managing Partner of Pinnacle Health Management, Gary’s primary roles are to provide administrative support to Pinnacle’s team of clinicians and to invest time into fostering productive partnerships with each nursing home and assisted living facility under contract; while being responsive to the needs of all.

Roger Bayog, M.D.

Dr. Bayog is a founding partner and Medical Director of Pinnacle Health Management. Dr. Bayog is Board Certified in Psychiatry and Neurology. He has been a practicing psychiatrist for over 30 years. He completed his residency training at Boston City Hospital and is a graduate of the Boston Psychoanalytic Society and Institute. Presently, Dr. Bayog is an Assistant Clinical Professor in Psychiatry at Tufts New England Medical Center, Medical Director of Norcap Lodge and the Chairman of the Department of Behavioral Medicine at the Good Samaritan Medical Center in Brockton, MA.

Kristen Barletta, RN/PNP

Kristen is an ANCC board certified Nurse Practitioner with experience in the diagnosis and treatment of psychological disorders. As a graduate of Regis College, Kristen has been an Adult Psychiatric Nurse Practitioner since 2011 with a work history that includes psychotherapy, diagnosis, and treatment of mental health disorders in both an outpatient and nursing home setting. She enjoys the connection with her clients, always striving to provide healing through the caring, therapeutic bond coupled with carefully considered psychopharm and behavioral interventions.

Irina Dauphinee, RN, MSN, FNP-BC

Irina received her undergraduate degree from Regis College, and continued her education at the university to become a certified family nurse practitioner. Since her graduation, she has provided a high level of professional care to patients at various locations, including Boston Medical Center. In her time at Pinnacle Health Management, Irina has performed psychiatric evaluations that include providing mental status exams and assessing the health behaviors of the patients she sees in nursing homes, as well as making recommendations for further treatment.

Meredith Detwiler, RN, NP-C, MSN

Meredith is an AANP certified Nurse Practitioner and a 2007 graduate of Regis College. Her experience includes family practice, emergency medicine, and the assessment, diagnosis and treatment of mental health conditions in adults and the elderly.

Melinda Gribko-Reyes, MSW, LICSW, LADC, LNHA

Melinda has worked as a licensed clinical social worker with extensive experience in both clinical and administrative capacities since her graduation from Simmons College in 1999. She has been engaged as an outpatient counselor, Clinical Director and Licensed Nursing Home Administrator. Melinda provides counseling and clinical support to residents in need of therapeutic and/or behavioral intervention(s).

Kelly Hancock, PMHNP-BC

Kelly is a board-certified psychiatric nurse practitioner who graduated from Walden University.  Her background includes extensive experience in palliative and hospice care.  Kelly’s clinical career took her on a journey through the healthcare system starting out working in acute care orthopedics/medical-surgical.  Managing the care of the geriatric population became her passion which led her to obtain her master’s degree in psychiatric mental health.   Kelly’s goal is to treat the psychiatric effects of acute and chronic physical illness to give seniors a better quality of life.

Nancy Perroni RN, MSN

Nancy is an AANP certified family nurse practitioner and is also a 2007 graduate of the University of Massachusetts Boston. Nancy’s professional experience includes primary care, addiction medicine, critical care nursing, and diagnosis and treatment of mental health conditions in adults and the elderly.

Kim Reske, ANP-BC

Kim is a detail-oriented and caring Adult Nurse Practitioner, with broad qualifications in diagnostic assessment, safe prescribing, and implementation of multifaceted treatment plans. She obtained her masters of science in nursing at Boston College. Her background encompasses intensive clinical training experiences in hospital settings, healthcare facilities, and adult/geriatric practices.

Natalie Rosenberg, MSW, LICSW

Natalie received her undergraduate degree from Simmons College and went on to complete her MSW at Rutgers University. Since graduation in 1982, Natalie has provided psychotherapy services to individuals and families in a variety of settings with a special emphasis on working with the elderly. She is a skilled therapist and educator, working with staff to develop skills in the areas of crisis intervention and behavioral management.

Nancy Rowley, MSW, LICSW

Nancy is an LICSW who has been devoted to providing services in Massachusetts for over 50 years. Beginning as a social worker at the Massachusetts Division of Child Guardianship after receiving her MSW from Howard University, she has worked with both children and adults to provide therapy to those experiencing abuse, grief, mental health issues, and marital problems. Nancy has been a great asset to the Pinnacle team, and continues to provide exceptional care to her patients.

Ruth Soderberg, RN, MS, Ed.M., CNP, ANP-C

Ruth is a certified Nurse Practitioner with extensive experience in the treatment and diagnosis of both neurological and psychological disorders. A graduate of Northeastern University, Ruth has been a Nurse Practitioner since 1994 with a work history that includes pediatrics, critical care and emergency services. Ruth works closely with each resident’s primary care physician in determining appropriate pharmacological interventions and adjunctive therapies.

Tom Stackhouse, Ph.D

Tom has been providing services as a psychiatric doctor for the past 40 years, with 23 of those years being spent helping geriatric patients. He obtained his PhD in psychology from the University of Georgia after serving for three years in the U.S. Navy. His expertise in working with individuals with acute and chronic mental health issues has led him to be a dynamic member of the Pinnacle team.

Ann Sullivan, NP

Ann Sullivan is an ANCC certified adult nurse practitioner who has over 20 years of experience in geriatric mental health.  Collaborating and caring, Ann is attentive to the needs of residents and families.  She works closely with nursing home and Pinnacle staff providing education and mentoring. 

Linda Winiker, LICSW

Linda received her masters degree in social work from Adelphi University, and began her career as a psychotherapist at an outpatient mental health clinic. From there, Linda focused her expertise in being a geriatric clinician and consultant, and has continued to do so for the last 25 years. Her level of care that she provides to her patients is remarkable, and she is an essential member of our staff.