Duncan-Nulph Hearing Associates

5020 Ritter Rd Ste 106 Mechanicsburg, PA 17055
(717) 516-6744

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.


Photo of Kristen Duncan, AuD from Duncan-Nulph Hearing Associates

Kristen Duncan,


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.

Photo of Danette Nulph, AuD from Duncan-Nulph Hearing Associates

Danette Nulph,


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.

Photo of Michelle Tewell, AuD from Duncan-Nulph Hearing Associates

Michelle Tewell,


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.


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Healthy Hearing posts all positive and negative reviews that meet publishing criteria.

Read 80 verified patient reviews for Duncan-Nulph Hearing Associates! Their average review score is 4.99 () from 80 reviews.

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“Dr. Duncan has been exceptionally professional and always goes above and beyond to provide excellent care while assisting me with my hearing loss. The entire office staff is kind and always more than willing to help with scheduling issues.”

Judy K.   
05/02/2022    Review submitted online

“Everything was thorough and professional. I have had hearing aids for about 15 years. All questions and concerns were addressed by Dr Tewell. ”

Gerald F. of Mechanicsburg, PA   
04/29/2022    Review submitted online

“I had not had a hearing test in a very long time and knew I was having problems hearing. Dr. Tewell and the entire staff are the best. She took her time explaining every step with me and continued to ask if I had any questions. The hearing aids have opened my world again! Did not know how much I was missing! ”

Janet M.   
04/18/2022    Review submitted online

“The audiologists are very helpful, friendly and quite professional in dealing with patients. The hearing products they represent are excellent, state-of-the-art devices. They explain everything in great detail and are very helpful in advising and choosing the right device for your hearing needs. Their trial period and customer support is more than I expected. I highly recommend Duncan-Nulph Assocs. for your hearing needs.”

Frank B. of Mechanicsburg, PA   
03/02/2022    Review submitted online

“Proffesional, courteous, personable and great product. This is where to go for your hearing needs. Excellent ”

Nancy V. of Mechanicsburg, PA   
02/21/2022    Review submitted online

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Clinic details

Improve your hearing, improve your life

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
  • Battery club
(717) 516-6744

Hours of operation

Monday8:30 am - 4:30 pm
by appointment
Tuesday8:30 am - 4:30 pm
by appointment
Wednesday8:30 am - 4:30 pm
by appointment
Thursday8:30 am - 4:30 pm
by appointment
Friday8 am - 12 pm
by appointment

Clinic links

Accepted forms of payment

  • Visa
  • MasterCard
  • Discover
  • Cash
  • Check
  • Debit
  • Insurance accepted, please call for details
Disclaimer: This clinic profile is for general information purposes only.
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