Duncan-Nulph Hearing Associates

"Improve your hearing, improve your life"
5020 Ritter Rd Ste 106 Mechanicsburg, PA 17055
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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

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.

Clinic reviews

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

Read 61 verified patient reviews for Duncan-Nulph Hearing Associates! Their average review score is 5 () from 61 reviews.

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“Dr. Duncan ensured I was fitted properly with the right hearing aids for me. Very professional and knowledgeable.”

of East Berlin, PA   
01/10/2021    Review submitted online
5 out of 5 1.

“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.”

of Mechanicsburg, PA   
01/09/2021    Review submitted online
5 out of 5 1.

“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.”

of Harrisburg, PA   
12/28/2020    Review submitted online
5 out of 5 1.

“Very professional and friendly. Helpful in choosing the best hearing and for my needs.”

12/06/2020    Review submitted online
5 out of 5 1.

“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. ”

of Harrisburg, PA   
11/09/2020    Review submitted online
5 out of 5 1.

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Clinic details

About this hearing center

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

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
Friday8:00 am - 12:00 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. Financial aid and insurance coverage can vary widely by policy and should be verified with the provider before services are rendered.