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AC Hearing, Tinnitus and Balance Associates, LLC, was founded by James L. Shafer, Au.D. FAAA, to provide Central Pennsylvania and Maryland with high-quality diagnostic and rehabilitation services for patients of all ages who need hearing aids or who are experiencing symptoms of hearing loss, tinnitus or balance-related concerns.

Doctor Shafer and his staff of Audiologists have provided these services to the Central Pennsylvania area for over 20 years. With the advent of hearing aid and diagnostic technology and added staff, our capabilities have expanded to become the most comprehensive Audiology practice in the region, with rivals only among nationally ranked hospital settings. AC Hearing, Tinnitus and Balance Associates locations are staffed with Audiologists and Doctors of Audiology who are licensed in Pennsylvania and Maryland and nationally certified.

What is an Audiologist?
An audiologist earns a master's or a doctoral degree in audiology. Audiologists are trained hearing health professionals who:
• Evaluate hearing using behavioral and objective (non-behavioral) test procedures
• Identify hearing loss
• Refer patients to otolaryngologists (ENTs) for medical or surgical management of hearing loss and ear disease
• Determine need for hearing rehabilitation
• Determine candidacy for hearing aids
• Select and fit hearing aids
• Evaluate the balance system

All of our Audiologists are highly trained in the assessment, identification, prevention and non-medical treatment of hearing loss, the need for hearing aids, balance disorders and tinnitus. All professional staff hold Master or Doctoral degrees from accredited colleges and universities.

In addition to our office practice, we provide contractual services to local acute care and rehabilitation hospitals and retirement communities. We also provide Audiology services by direct referral from primary care physicians, pediatricians, and local otolaryngologists. Using the most technologically advanced equipment, our Audiologists are able to provide a complete range of Audiology services to patients of all ages. AC Hearing, Tinnitus and Balance Associates, LLC, is accredited by and participates with a variety of insurance providers.


James L. Shafer, Au.D., CCC-A, FAAA was the former owner of Audiologic Consultants, Inc until October of 2005. At that time AC Tinnitus, Hyperacusis and Balance Center, Inc. was being developed to provide tinnitus and routine balance evaluations and related Tinnitus therapies.  Dr. Shafer received his Bachelor of Science degree from Penn State University, Master of Science degree from Temple University and Doctor of Audiology degree from Arizona School of Health Sciences, a division of AT Still University of health sciences, the oldest Osteopathic University in the nation.  Dr. Shafer has advanced training in all aspects of vestibular evaluation and Tinnitus rehabilitation and serves as the director of Audiology.

Kimberly E. Stremmel, Au.D., CCC-A, FAAA received her Bachelor of Science degree from West Virginia University and her Doctor of Audiology degree from Towson University.  Prior to joining AC Associates, Dr. Stremmel was a clinical Audiologist with Audiologic Consultants, Inc.  She brings a wealth of knowledge to the evaluation for all ages and related auditory habituation utilizing the most advanced capabilities available for determination of candidacy for hearing aids.  Dr. Stremmel has extensive knowledge of pediatric to adult hearing aid fittings.  Dr. Stremmel serves as the clinical director of rehabilitation.

Cara I. Adornetto, Au.D., FAAA, CCC-A received her Doctoral degree from Gallaudet University. She completed her Doctoral fellowship at the Mayo Clinic in Scottsdale Arizona. She served as the Cochlear Implant Program Coordinator and staff Audiologist at the University of Maryland Medical Center. Dr. Adornetto served as a Board member and Convention Chair for the Maryland Academy of Audiology. She is licensed in Maryland and is certified by the American Speech, Language and Hearing Association and a fellow of the American Academy of Audiology. Dr. Adornetto is a long time resident of Maryland and lives locally with her family.

Dr. Margaret M. Jastreboff received received her Ph.D. in Biological Sciences from the Polish Academy of Sciences, and postdoctoral training in pharmacology and molecular biology at Yale University School of Medicine. She has been involved in tinnitus research since 1984, and on a full-time basis since 1991 while working at University of Maryland School of Medicine. Her experimental work aims at the study of the mechanisms of tinnitus using molecular biology, pharmacology, and behavioral techniques, including testing drugs for their effectiveness for tinnitus attenuation. She has been involved in clinical work for number of years as well, while working first as an Associate Professor at Emory University and lately as a Visiting Research Professor at Towson University. She organizes the courses on Tinnitus Retraining Therapy in the USA and abroad and as an Adjunct Professor together with Dr. Pawel J. Jastreboff teaches tinnitus and hyperacusis class at Salus University. She is a co-author of over 60 papers and 100 scientific abstracts. In 1993 she shared with Dr. Pawel J. Jastreboff the prestigious Robert W. Hocks award for her contribution to the field of tinnitus.

Rachel Sharnetzka, M.S., CCC-A, FAAA, received her Bachelor of Science degree from Penn State University, Master of Science degree from Vanderbilt University, currently ranked as the number one Audiology program in the United States and is currently pursuing her Doctor of Audiology degree. Prior to joining AC Associates, Mrs. Sharnetzka was a clinical audiologist with Audiologic Consultants Inc. and served as the Clinical director of the Vestibular Laboratory at the University of Maryland Medical Center in Baltimore. She is an Adjunct Professor at Towson University teaching Vestibular Assessment and Rehabilitation and provides audiologic services to the Lancaster Cleft Palate Clinic. Rachel serves as the clinical director of neuro-diagnostic services for AC Associates.

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