A number of conditions can cause temporary hearing loss, and each has its own treatment. In most cases, temporary hearing loss is easily treated and has no lasting effects.
Hearing aids come with default settings, but your hearing care provider can also set up custom programs, such as music listening or for driving in a car.
Do you feel like you can hear but not understand words? This may mean you have high-frequency hearing loss--or even something unrelated, like an auditory processing problem.
A message from Duncan-Nulph Hearing Associates about COVID-19:
We're happy to announce that we're open and seeing patients!
We're following CDC guidelines for health and safety. Please call today to schedule your appointment.
Clinic staff
Kristen Duncan, AuD
Audiologist
Dr. Kristen Duncan has over 22 years of clinical audiology experience. She earned her Doctoral in Audiology from the Pennsylvania College of Optometry and holds degrees from the University of Pittsburgh and Bloomsburg University. Her focus has been on diagnostic testing and treatment of patients with hearing impairment with a special interest in patient counseling and hearing aid fittings using the latest digital technology.
Danette Nulph, AuD
Audiologist
Dr. Danette Nulph earned her Doctorate degree in Audiology from the Pennsylvania College of Optometry and has over 19 years of experience. She has worked as a clinical audiologist in North Dakota for 3 years in a hospital and rehabilitative setting before moving back to PA. She obtained certification in the Tinnitus Retraining Therapy which offers treatment for patients suffering with tinnitus and most recently, Dr. Nulph was part of an Audiology team providing diagnostic and rehabilitative services in an ENT office.
Michelle Tewell, AuD
Audiologist
Dr. Michelle Tewell earned her Speech Pathology and Audiology from East Stroudsburg University and her Doctorate Degree in Audiology from Bloomsburg University. Her experience includes a wide variety of audiological services and patient populations, from pediatric to geriatric, in various settings. Her specialties include working with patients to better understand their hearing and communication needs. Dr. Tewell is a fellow of the American Academy of Audiology and holds a Certificate of Clinical Competence in Audiology from the American Speech and Hearing Association.
Clinic reviews
Healthy Hearing posts all positive and negative reviews that meet publishing criteria.
Read 67 verified patient reviews for Duncan-Nulph Hearing Associates! Their average review score is 5 () from 67 reviews.
“The entire staff was so friendly and made you feel welcome. Dr. Tewell’s knowledge and professionalism was quite evident. Every session through the process was a positive experience. Thank you to all.”
Carl P. of Mechanicsburg, PA 05/11/2021 Review submitted online
5 out of
51.
“Superior care, very understanding of tinnitus and hearing loss frustrations. A privilege to be taken care of by Dr Nulph and staff. Thank you all for caring.”
Peggy S. of Hanover, PA 04/27/2021 Review submitted online
5 out of
51.
“Warm and professional is the perfect combination of service when I was new to the experience of searching for help with my hearing. Great information and receptive to all my many questions— thanks Dr. Tewell!”
Susan G. of Dillsburg, PA 04/08/2021 Review submitted online
5 out of
51.
“Dr. Tewell is outstanding! She was very understanding and listened to the initial difficulties I was having with the hearing aids. She made adjustments to the hearing aids and addressed all of my concerns.”
Carole V. of Harrisburg, PA 04/05/2021 Review submitted online
5 out of
51.
“Dr. Nulph is always very helpful and knowledgeable. The staff is very friendly and helpful.”
Rosemarry D. of Mechanicsburg, PA 03/01/2021 Review submitted online
5 out of
51.
“Very friendly and knowledgeable. Dr. Duncan answered every question and made getting a hearing aid a very pleasant experience. ”
Mike W. of Harrisburg, PA 02/08/2021 Review submitted online
5 out of
51.
“Dr. Duncan ensured I was fitted properly with the right hearing aids for me. Very professional and knowledgeable.”
Beth D. of East Berlin, PA 01/10/2021 Review submitted online
5 out of
51.
“I worked with Dr. Tewell, and she was outstanding. Dr. Tewell is very knowledgeable, explained all of my options, and answered all of my questions. She was genuinely concerned that I was happy with my choice of hearing aids; we had practice sessions so that I would learn how to use them.
I highly recommend Dr. Tewell and Duncan-Nulph Hearing Associates.”
Gary L. of Mechanicsburg, PA 01/09/2021 Review submitted online
5 out of
51.
“Duncan/Nulph Hearing professionals are welcoming, knowledgeable and helpful from the receptionist to the audiologist and back again. They go out of their way to to be helpful and provide the patient with quality hearing devices. They ensure that the patient is 100% satisfied in all areas of the process before any device is bought. After the sale they are completely available for any and all difficulties or dissatisfaction experienced by the patient.
Their top goal is to provide the patient with devices that work well for their particular needs so that they will use them and improve their quality of life.
I highly recommend them.”
Romaine H. of Harrisburg, PA 12/28/2020 Review submitted online
5 out of
51.
“Very professional and friendly. Helpful in choosing the best hearing and for my needs.”
David W. 12/06/2020 Review submitted online
5 out of
51.
“My experience was very positive. Dr. Duncan was knowledgeable, informed and concerned about helping me have the best hearing experience. She was extremely helpful and I am hearing much better because of her advice.
”
Alan S. of Harrisburg, PA 11/09/2020 Review submitted online
5 out of
51.
“Dr. Tewell's diagnosis was right on target. I was shocked the first time she put the hearing aids in my ears. I did not realize how much my hearing deterioated. The hearing aids are so small and easy to use. The sound quality is excellent. I couldn't be happier with the experience.
”
JUNE K. of Mechanicsburg, PA 11/04/2020 Review submitted online
5 out of
51.
“I highly recommend Duncan-Nulph Hearing Associates. Dr. Duncan answered all my questions through out the testing and fitting phase. She addressed the concerns I had about the hearing aids and I feel quite comfortable with those that she chose for me.”
Bill M. of Mechanicsburg, PA 10/21/2020 Review submitted online
5 out of
51.
“I never expected to be able to hear this well again. Thanks so much for the great service. I would highly recommend Duncan-Nulph Hearing Associates.
”
Bruce H. of Mechanicsburg, PA 09/04/2020 Review submitted online
5 out of
51.
“I've been a patient of Dr. Duncan for over 6 years. I couldn't be happier with the care I've received--the thorough and patient explanations, from testing through fitting of hearing instruments, and the high quality hearing aids. I recommend Duncan-Nulph Hearing Associates to anyone who needs assistance with hearing. They are the best!”
Beth M. of Mechanicsburg, PA 08/25/2020 Review submitted online
5 out of
51.
“Outstanding practice! Dr. Duncan was extremely patient and thorough with my 95 year old mother. She is very happy with her new hearing aids and enjoys watching tv so much more, as well as finding it much easier to understand conversations. ”
Michael H. of Mechanicsburg, PA 08/13/2020 Review submitted online
5 out of
51.
“Took the time to explain each step of the exam and went over the options for a hearing device and how to get the maximum benefits once I was fitted. Great process!”
Dan S. of Mechanicsburg, PA 08/11/2020 Review submitted online
5 out of
51.
“I look forward to 'visit' D & N . . . love the people. Always wanting to help me, and I need help!
I have one good ear, and without my AID, the whole world is totally quiet. Just the best!!!”
BEN B. of Lewisberry, PA 07/19/2020 Review submitted online
5 out of
51.
“Very pleased with the patience Dr. Duncan displayed during my hearing test. The hearing process (testing) was very helpful and needed to properly identify the range of hearing loss. My new hearing aids are great compared to the previous hearing aids. I can now carry on a normal discussion with people and hear every thing they say. ”
Ken G. of Mechanicsburg, PA 07/09/2020 Review submitted online
5 out of
51.
“My experience with Duncan-Nulph hearing has always been top notch.”
Susan P. of Mechanicsburg, PA 06/25/2020 Review submitted online
5 out of
51.
“Dr. Nulph has worked with me for seven years, since she diagnosed a hearing loss appropriate for aids. I have recently installed a new and improved generation of Oticons. It’s always pleasant, welcoming, and professional in the Duncan-Nulph offices.”
Mary Kaye F. of Boiling Springs, PA 06/19/2020 Review submitted online
5 out of
51.
“Always professional to my needs.”
John K. of Dillsburg, PA 06/11/2020 Review submitted online
5 out of
51.
“Dr. Duncan was referred to me by a relative who is a patient and was pleased with Dr. Duncan's knowledge in regards to hearing loss. She has now been my audiologist since I began wearing hearing aids. I was doubtful of their benefit but I have adjusted very well to the improvement. Dr. Duncan is respectful and helpful and explains the equipment and their use very well. It has been an easier experience than anticipated.”
Ronald S. of Mechanicsburg, PA 03/19/2020 Review submitted online
5 out of
51.
“Dr. Duncan has been professional, thorough, and personable in every interaction that I have had with her. I have been working with her from initial diagnosis of hearing loss, selection of the proper hearing instrument, and through 3 generations of hearing aids. I really like her "style".
The office staff is efficient, friendly, and easy to do business with. Overall, they are an organization that works well together to provide great service to their clients,”
Terry M. of Mechanicsburg, PA 03/15/2020 Review submitted online
5 out of
51.
“We needed to find someone new to help my mom with her hearing as our previous audiologist's office was non-handicapped accessible. Duncan-Nulph was recommended by a friend. I'm so glad. Everyone is helpful, professional and very nice. My mom has very sensitive ears and they removed the wax painlessly and fitted her with amazing new hearing aids. My husband and I will be making an appointment with them. We highly recommend them as we feel they are truly the best.”
Deb B. of Mechanicsburg, PA 02/27/2020 Review submitted online
5 out of
51.
“True professional service!!! I am truly amazed of how well I’m hearing now. I guess I didn’t know what I was missing. The first time I put the hearing aids in was a very emotional moment for me. Thank You, Michelle! And thank you to everyone at Duncan-Nulph!”
Rick J. of Halifax, PA 02/21/2020 Review submitted online
5 out of
51.
“Very professional people. Learned a lot about my hearing loss from the testing results. Dr. Michelle answered all of the questions we had. She explained everything very thoroughly as we went through the process of testing, fitting, and use of the hearing aids. I have been very satisfied with their service and would recommend them to anyone that is having issues with hearing loss.”
Frank J. of Carlisle, PA 01/31/2020 Review submitted online
5 out of
51.
“Pleasant office. Clearly professional. Clear and complete explanations. Respond to questions quickly and completely. Highly recommend.”
Craig W. of Hummelstown, PA 01/03/2020 Review submitted online
5 out of
51.
“Everything was very well explained to me. I was given time to see how I felt with hearing aides and to make adjustments. I was comfortable discussing my needs in a very friendly environment. I feel I was given excellent care. ”
Bonnie R. of Mechanicsburg, PA 12/16/2019 Review submitted online
5 out of
51.
“For years I haven't been able to hear very well and would say "what" when people talked to me. Now I can hear, thanks to Michelle. She made the whole process go smoothly. Instead of giving her a "5", I gave her a "10". Thank you Michelle. ”
Peggy H. of Mechanicsburg, PA 12/10/2019 Review received via mail
5 out of
51.
“They were very nice to me and took their time with me. Recommended by a relative. ”
John S. of Mechanicsburg, PA 11/25/2019 Review received via mail
5 out of
51.
“My daughter selected Duncan/Nulph after reading about the practice on line. As a 86 year old my hearing was impacting my ability to communicate. The practice was professional, caring and focused on improving my hearing. Today I had my first placement of my hearing aides. My daughter cried when she realized I could hear. What a great holiday we will have. We are very fortunate to have found a great physician and practice to diagnose my hearing loss and find the best product with the best on hands education. ”
Jeanne B. of Harrisburg, PA 11/21/2019 Review submitted online
5 out of
51.
“Dr. Nulph was very kind and compassionate. She is very helpful and knowledgeable during the whole process of getting my hearing aids just right for me. The receptionists were so friendly and attentive and I will highly recommend this organization to others. Thank you for making this a great experience for me. ”
Naomi L H. of Mechanicsburg, PA 11/18/2019 Review received via mail
5 out of
51.
“I must say that my experiences with Dr. Nulph have always been excellent. Since my first visit over sixteen years ago, I have been very happy and grateful for Dr. Nulph's professional help to me. I do recommend her to my friends! ”
P Dorothy S. of Camp Hill, PA 11/18/2019 Review received via mail
5 out of
51.
“As always, everyone was on time and prepared. I never have to wait. But, I never feel rushed. Everyone always courteous and very professional. ”
Martha A N. of Camp Hill, PA 11/12/2019 Review received via mail
5 out of
51.
“The whole staff at the office was great from the receptionist to the audiologist (Dr. Tewell). They made the entire process easy and seamless! ”
Thomas C. of Mechanicsburg, PA 10/29/2019 Review submitted online
5 out of
51.
“I like to know where my hearing aids are. They are either in my ears or in the charger.”
Larry B S. of Mechanicsburg, PA 10/28/2019 Review received via mail
5 out of
51.
“I have been a patient for almost 10 years and have always had courteous encounters and excellent treatment . I highly recommend this office for hearing needs.”
Diane P. of Manchester, PA 10/14/2019 Review submitted online
5 out of
51.
“I have had an Oticon hearing aid for some time. When I heard of the updated version, I tried them. The clarity of the sound in the hearing aid bring "tears to the eyes", I am so glad to have these now. ”
A Thomas A. of Mechanicsburg, PA 09/20/2019 Review received via mail
5 out of
51.
“My experience was excellent with all persons. ”
D D. of Mechanicsburg, PA 09/16/2019 Review received via mail
5 out of
51.
“ I highly recommend Duncan and Nulph and Associates. Even before I walked in the door a young lady took the papers I had filled out, and did it with a smile. Every thing there is done with a smile. Dr. Michelle Tewell took care of my hearing needs fitting me with hearing aids. She has all the expertise and the patience of a saint.
Calls that I made where always returned promptly. I will never be able to thank Dr. Tewell and everyone at D&N Hearing enough.
”
Fred R. 07/19/2019 Review submitted online
5 out of
51.
“I could not be happier with my experience with Dr. Nulph. She is thorough, knowledgeable, and extremely professional. The office staff is friendly. The hearing devices are top of the line. I highly recommend Duncan and Nulph and Associates. ”
Judy D. of Mechanicsburg, PA 05/20/2019 Review submitted online
5 out of
51.
“I'm an 82 year old man with considerable hearing loss. Four years ago my PCP recommended I make an appointment with Dr. Nulph. She administered a very thorough hearing evaluation and quickly determined my needs. My device has been a life saver as I know that I am now much more aware of my surroundings especially when driving. I see Dr. Nulph twice a year and my checkups are always pleasant and worth wile. She and her staff are always efficient and professional. The offices of Duncan/Nulph has my highest recommendation.”
Vincent L. of Pillow, PA 01/09/2019 Review submitted online
5 out of
51.
“I'm highly pleased to have Dr. Nulph as my audiologist. I am an eighty seven years old woman with progressive hearing loss. My hearing aids have been fitted to me so that they don't "whistle" when something or someone gets close to me. And, I don't need to say, "Would you please repeat that?" Thankfully, Dr. Nulph is as genuinely caring about my hearing as I am.”
Patricia M. 12/30/2018 Review submitted online
5 out of
51.
“I have seen Dr. Michelle Tewell on 3 occasions and she listened to my concerns and sorted them out in a very professional and very kindly manner. She is indeed a splendid addition to Dr. Nulph’s staff. She is excellent and is an exceptional person that I can not say enough good about, she is absolutely brilliant and take this opportunity to make a appointment with her and I believe you will as pleased as I am.”
Michael L. of Camp Hill, PA 09/04/2018 Review submitted online
5 out of
51.
“The team is always responsive to my mother's needs. Dr Duncan spends a lot of time getting to understand the issues, and gives us options and suggestions to consider. ”
Diana S. of Carlisle, PA 08/09/2018 Review submitted online
Judy N. of Dillsburg, PA 08/08/2018 Review submitted online
5 out of
51.
“I was impressed with the hearing test and available software to reprogram my hearing aids. I am hearing much better now”
Donna F. of Camp Hill, PA 05/09/2018 Review submitted online
5 out of
51.
“Quality audio care doesn't get any better than that provided by Duncan-Nulph. The doctors are true professionals who work patiently and proficiently with every patient, regardless of age, and all staff are caring and helpful.”
Kathleen L. of Harrisburg, PA 04/11/2018 Review submitted online
5 out of
51.
“Total professionalism; friendly environment; impressed by emphasis on patient care and continuing support. Experience was the best!”
Sally W. of Mechanicsburg, PA 04/04/2018 Review submitted online
5 out of
51.
“If your looking for a friendly, supportive and encouraging place to help you with your hearing problems, look no further - Duncan-Nulph is the place to be. They’re true professionals that treat you like family. ”
Andrew K. of Mechanicsburg, PA 01/08/2018 Review submitted online
5 out of
51.
“Reference provided by a friend of my wife. All subsequent support has been total support and assistance in obtaining and using my hearing aids. Recommending and providing my Caption call device was over and above support. My experience and total support provided me has been well over and above normal support.”
edgar j. of Mechanicsburg, PA 01/07/2018 Review submitted online
5 out of
51.
“My mother had a hearing aid that had gotten broken. When I called the office where she had purchased it, I was told they would have to send it away for repair and it would take several weeks. There was no one there who would even look at it.
A friend had recommended Dr Duncan so I called the office and was told to bring the hearing aid in and they would look at it. They had the hearing aid fixed in minutes saving my mom from having to go without. The staff at this office is always friendly and helpful. Thank you for your excellent customer service. ”
Sylvia M. of Middletown, PA 07/13/2017 Review submitted online
5 out of
51.
“So happy I switched to Duncan-Nulph several years ago. I have never been more pleased with the services and care that I have received from any other hearing associates. The staff are good at what they do and good to their patients. The office is a warm, friendly place. Thank you Duncan-Nulph Hearing Associates!”
Phoebe P. of Enola, PA 06/01/2017 Review submitted online
5 out of
51.
“Every aspect of my multi-year experience with Duncan-Nulph has been first rate. Highly recommended.”
John K. of Mechanicsburg, PA 02/01/2017 Review submitted online
5 out of
51.
“First rate service to their patients”
Ken P. of Mechanicsburg, PA 01/05/2017 Review submitted online
5 out of
51.
“She was very thorough and patient, took time with me, and very caring. ”
Dawn W. of Mechanicsburg, PA 01/15/2016 Review verified by phone
5 out of
51.
“I liked everything. They were courteous, professional, knowledgeable. ”
Susan F. of Harrisburg, PA 09/17/2015 Review verified by phone
5 out of
51.
“She was very thorough, very understanding and answered all my questions.”
Cindy D. of Harrisburg, PA 08/05/2015 Review verified by phone
5 out of
51.
“They gave me the information I needed to know and weren't afraid of me asking questions.”
Laurie H. of Harrisburg, PA 07/22/2015 Review verified by phone
5 out of
51.
“They were most gracious, and courteous, and no problem.
The clarity with which they explained what they had to offer and what I would need.”
Earla S. of Mechanicsburg, PA 06/25/2015 Review verified by phone
5 out of
51.
“She was very patient with my father - he's 92 and you don't get a whole lot of feedback from him. ”
Edward M. of Dillsburg, PA 12/16/2014 Review verified by phone
5 out of
51.
“I liked her knowledgeable and very sound advice. I think she sizes up her client very well and then provides advice that's very appropriate to their situation. ”
Ken J. of New Oxford, PA 10/02/2014 Review verified by phone
5 out of
51.
“I would highly recommend this office! I would give them a 5 plus! I liked the whole office, from the waiting room to the doctor's office, very patient oriented. They answer all your questions. You don't leave there until you have all your questions answered. It was just an excellent experience for something we knew nothing about. ”
Robert H. of Dillsburg, PA 08/30/2014 Review verified by phone
5 out of
51.
“She's a professional.”
Ben B. of Lewisberry, PA 09/06/2013 Review verified by phone
5 out of
51.
“I liked her experience and expertise. I would highly recommend the clinic.”
Mary C. of Harrisburg, PA 05/24/2013 Review verified by phone
5 out of
51.
“He was very proffesional and very helpful with explaining details.”
David B. of Harrisburg, PA 10/23/2012 Review verified by phone
Duncan-Nulph Hearing Associates offers complete hearing care services to patients of all ages. Our highly experienced clinical professionals provide comprehensive testing, evaluations and offer the most advanced hearing devices that are available. We can help you make the best choices with all of your hearing needs and obtain a better quality of life through better hearing.
Hearing care services
Comprehensive hearing testing including air conduction, bone conduction and speech reception
Tympanometry to assess middle ear function
Hearing aid consultation
Hearing aid fitting, focusing on the latest available hearing aid technology
Hearing aid service and repair on most makes and models
Hearing aid verification
Custom earmolds for: hearing aids, musician's earplugs and monitors, recreation (shooting, motor sports, etc) , swim earplugs, custom earplugs for iPods, Bluetooth headsets
Assistive Listening Devices: TV Ears, amplified telephones, doorbell signalers
Full line of accessories and products for hearing aids
