About Us
Patients who seek treatment from Lemme Audiology can count on finding a reason to love their Audiologist and trust in them. The truth is hearing is often a second nature to many, meaning it doesn’t always get the attention that’s needed. This is why at Lemme Audiology Associates, we take the time to educate our patients about hearing and hearing loss, how hearing loss impacts daily life, and how treating their hearing loss can improve their overall quality of life.
Our audiologists will listen to your concerns, questions, and challenges and make sure that your treatment plan is the perfect fit. From hearing aid services, to tinnitus, to balance issues, we will find the right solutions for your individual situation together so that you can keep doing the things you love.
Lemme’s state of the art, vestibular/balance center allows us to provide the most comprehensive diagnostic assessments in the region. For patients who are experiencing dizziness, vertigo or balance issues, this comprehensive evaluation provides essential information to determine the etiology, cause and proper treatment for your dizziness or balance issues.
Meet the Lemme Team

Dr. Karen Lemme
Karen Lemme, Au.D. earned her Bachelor of Science Degree in Social Work from Juniata College before moving on to receive her Master of Science Degree in Audiology from Bloomsburg University. Karen earned her Doctor of Audiology Degree from Salus University. She is a member of the Pennsylvania Academy of Audiology and a member of the American Academy of Audiology, as well as being Board Certified by the American Board of Audiology.
Before opening the doors of Lemme Audiology in Altoona in 1993, Dr. Lemme supported those in need of her expertise by working with several nonprofits. Since 1993, Karen has grown Lemme Audiology to be Central PA’s regional Hearing Healthcare Practice with offices in Altoona, Ebensburg and Martinsburg.

Dr. Amy Greer
Amy Greer, Au.D. earned her Doctor of Audiology Degree from A.T. Still University of Health Science. She offers 30 years of experience providing hearing healthcare with a special interest/focus in tinnitus and hyperacusis management. She is a member of the Pennsylvania Academy of Audiology and a member of the American Academy of Audiology, as well as being Board Certified by the American Board of Audiology.
Amy resides in Windber, with her husband, Patrick and their labradoodle, Archie.
When not in the office, she enjoys spending time outdoors gardening, taking her dog for long walks and opportunities to travel with family and friends.

Dr. Madelyn Wirfel
Madelyn Wirfel, Au.D. earned her Bachelor of Science degree from Bloomsburg University in Communication Sciences and Disorders. She then went on to obtain her Doctorate of Audiology degree from Bloomsburg University after completing her fourth-year externship here at Lemme Audiology. She is a member of the Pennsylvania Academy of Audiology and a member of the American Academy of Audiology, as well as being Board Certified by the American Board of Audiology.
Dr. Wirfel now works at our Altoona and Martinsburg offices treating patients with hearing loss and with vestibular disorders. While not at work, you can find Madelyn spending time with her family outdoors.

Dr. Abby Barnes
Abby Barnes, Au.D. earned her Bachelor of Science degree from Clarion University in Communication Sciences and Disorders, as well as a minor in Psychology. She then went on to obtain her Doctorate of Audiology degree from West Virginia University. She is a member of the Pennsylvania Academy of Audiology and a member of the American Academy of Audiology, as well as being Board Certified by the American Board of Audiology.
Dr. Barnes works at our Altoona office specializing in comprehensive vestibular evaluations. She also treats hearing disorders for patients of all ages. While not in the office, Abby can be found enjoying time with her family and fur babies.

Dr. Alexandra Jackson
Alexandra Jackson, Au.D. earned her Bachelor of Science degree from Penn State in Communication Sciences and Disorders. She then went on to obtain her Doctorate of Audiology at Salus University in May 2024 graduating Cum Laude. She is a member of the Pennsylvania Academy of Audiology and a member of the American Academy of Audiology.
Dr. Jackson works at our Altoona office focusing on diagnostic audiology and treating hearing loss in patients of all ages. She also specializes in vestibular assessment and hearing conservation. Alexandra can be found spending time with her family and dogs, reading the latest romance novel, or watching a Pens game.
Community Involvement
At Lemme Audiology, we understand the importance of being proactive in the community and spreading education about hearing healthcare.
Community outreach events have included:
- Public Seminars
- Educational Sessions for Medical Providers
- Senior Center Hearing Screenings and Education Programs
- Workplace Wellness Screenings
- Health Fairs
- Public Hearing Screening Events on Location
- Media Interviews
Our Audiologists are available to speak to your business or group about Hearing Healthcare.
Featured Community Programs
Mishler Theater Looping System
Lemme Audiology Associates has generously donated a looping system, equipment and the installation of the system at the historic Mishler Theater. The installed Looping system allows individuals with hearing devices to hear and understand more clearly.
“We are delighted to provide greater access to Mishler Theater programs for those who may not have been able to attend in the past due to hearing difficulties. The audiologists of Lemme genuinely cares about the folks in our community dealing with hearing related issues” said Dr. Lemme.
AMBUCS Altoona
Dr. Karen Lemme represents Lemme Audiology Associates at AMUCS Altoona. AMBUCS is a national charitable service organization consisting of a diverse group of men and women dedicated to creating mobility and independence for people with disabilities.
To find out more about AMBUCS Altoona, visit their website at AmbucsAltoona.com

Certifications
Dr. Karen Lemme
- Board Certified by the American Board of Audiology
- Fellow of the American Academy of Audiology
- Licensed by the State of Pennsylvania to provide both Audiological and hearing aid services.
Dr. Amy Greer
- Fellow of the American Academy of Audiology, Pennsylvania Academy of Audiology and American Tinnitus Association
- Licensed by the State of Pennsylvania to provide Audiological services
- Completed certification for Tinnitus Retraining Therapy (TRT) at Emory University under the instruction of Dr. Pawel Jastreboff, “Father of TRT”
- Certificate holder of Tinnitus Management
- Bimodal Neuromodulation from a program designed at Neromod and Geosensory for Tinnitus

Awards
We are grateful for the trust our community and local physicians have placed in us for their hearing health care needs.
This trust has led to:
- Lemme Audiology Associates as Favorite Hearing Aid Professional in the Altoona Mirror’s Hometown Favorite Contest in 2016, 2017, 2018, 2019, 2020, 2021, 2022, and 2023.
- Tyrone Daily Harold’s Best Hearing Center for the Readers’ Choice Awards in 2016, 2017, and 2018.
- The American Hearing Aid Association’s All the Right Things Award (2015) – This award honors Audiology practices who demonstrate a commitment implanting all the right things to grow their practice and provide exceptional patient care.
