Meet Our Team


Stefan Fosco Au.D., is a graduate of Ithaca College and Salus University. He is a current member of the American Academy of Audiology and Academy of Doctors of Audiology. He started his career in the capital district at a rehabilitation hospital in Schenectady, New York, and has worked in training and education for leading hearing device manufacturers in the industry. Dr. Fosco has presented on hearing loss and hearing aid technology at educational events across the country, and is a sitting board member of the New York State Department of Education Board of Audiology and Speech Pathology.

He was born in Burlington, Vermont, and moved at an early age to Providence, Rhode Island, where he lived for 24 years. Ithaca College drew him to New York State, and he met his wife while working in Schenectady after graduate school. After traveling for 8 years as a training and education manager for advanced hearing instrument companies, his desire for helping others brought him back to us here at Audiologic Solutions, where he can dedicate his efforts to helping our patients, and spending time with his wife and four children.


Erin Walborn, Au.D. strives to provide honest, caring, and thorough service. She received her Masters of Science in Communication Disorders in 1995. In 2004, Dr. Erin received her clinical doctorate in Audiology from Salus University in Pennsylvania to further her education and learning. Since that time, she has taken a special interest in treating tinnitus and brain injuries along with helping people improve their quality of life through better hearing.

On a personal note, Dr. Erin is married to Daniel Sterantino and they have two children: Olivia (born in 2001) and Samuel (born in 2004). Their house is full of animals, much to her husband’s chagrin, with two cats, one dog, two chickens, and one tortoise.


Karen DeJoy, Au.D. received her Bachelors and Masters degrees from Ithaca College in 1992 and 1993, respectively. She received her Doctoral degree in Audiology from Salus University in 2009. Dr. DeJoy has worked in a variety of settings over the years, including Sunnyview Rehabilitation Hospital, St. Peter’s Hospital, multiple ENT practices, and private practice. She has a significant amount of experience with a variety of populations, newborn through geriatric, as well as working with consumers from Schenectady ARC and Center for Disability Services. Dr. DeJoy also has experience with Ototoxic Monitoring, Occupational Audiology/custom noise protection and musician’s custom hearing protection. She is also experienced with a variety of hearing aid manufacturers and styles of amplification, including assistive devices for the hearing impaired.

Dr. DeJoy lives in the country with her husband and three children. She is a certified Vinyasa and Restorative yoga instructor during her free time. She also enjoys hiking and kayaking and gardening.

Dr. DeJoy works out of our Rensselaer location on Tuesdays, Thursdays and Fridays. She is very kind and compassionate and has valuable experience in both diagnostics and hearing aid management.


Angela Lalla, Au.D. brings over 30 years of experience in the field of audiology, including 12 years working at a local hospital and many years as a marketing and training specialist for a hearing device manufacturing company. Angela is originally from Amsterdam, NY, but has lived in the Saratoga Springs area since 1992. Angela holds a Doctor of Audiology degree from Salus University, and also attended SUNY Plattsburgh and SUNY Geneseo.

Audiologic Solutions is your partner in hearing healthcare. Call Us Now to make an appointment!