New England ENT - North Andover

Cassie Guerrera earned her Doctor of Audiology degree from the University of Connecticut. During her clinical training, she completed rotations at the Veterans Administration Hospital in Jamaica Plain, Baystate Health, Connecticut Children's Medical Center and UCONN Health Center. Prior to joining New England ENT in January 2023, she gained experience at a private audiology practice in Boston as well as a large ENT group in Worchester.

Cassie is licensed to practice in Massachusetts and holds the Certificate of Clinical Competence in Audiology (CCC-A) from the American Speech Language Hearing Association.

Kristin earned her Doctor of Audiology degree from Towson University in 2016. She completed her clinical rotations at John’s Hopkins Bayview Medical Center, St. Agnes Hospital, Walter Reed National Military Medical Center, and Greater Baltimore Medical Center. Kristin served as senior clinical audiologist and the Newborn Hearing Screening Manager at Boston Medical Center prior to joining the New England ENT team. She is licensed in the state of Massachusetts and has a Certificate of Clinical Competence (CCC-A) from the American Speech-Language and Hearing Association. Kristin's areas of clinical focus span both pediatric and adult diagnostics, and she is dedicated to enhancing her patient's quality of life with tailored hearing aid soluoions.

In her free time she enjoys time spent with her husband and 3 young children, gardening and instructing yoga.

Jenny received her bachelor’s degree in Speech Language Pathology from Saint John’s University. She then went on to complete her Master’s degree in audiology from the University of Connecticut. Throughout her career Jenny’s has worked with mutiple ENT practices and several private audiology practices over a span of 28 years. including a decade at New England Hearing Care Associates in Newburyport. Her primary focus has been working with hearing aids and diagnostic testing for pediatric through adult population. Jenny holds her Certificate of Clinical Competence from the American Speech, Language, Hearing Association.

Outside of the office she enjoys spending time with her two teenage boys and husband, fitness and a good book.

Christine Donigian Tisbert has been a clinical audiologist since 1986, and began her career at Massachusetts Eye and Ear Infirmary in the Evoked Response Lab. She attended Penn State University where she received her M.S. After graduating, Christine went on to work in a private practice eventually moving on to Beverly Hospital where she managed the speech and audiology department during her employment with them. Christine also served as an instructor at Northeastern University in the Audiology Department. In 2016, she completed her doctoral degree in Audiology from A.T. Still University. Prior to coming to New England ENT in 2022, she worked at Arrigg Eye and Ear where she specialized in vestibular testing and treatment, along with hearing aid assessment and fitting.

Christine resides in the Merrimack Valley with her twin children.