Duncan-Nulph Hearing Associates

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

Clinic staff


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.


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.


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

Read 27 verified patient reviews for Duncan-Nulph Hearing Associates! Their average review score is 5 () from 27 reviews.

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“ 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. ”

07/19/2019    Review submitted online
5 out of 5 1.

“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. ”

of Mechanicsburg, PA   
05/20/2019    Review submitted online
5 out of 5 1.

“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.”

of Pillow, PA   
01/09/2019    Review submitted online
5 out of 5 1.

“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.”

12/30/2018    Review submitted online
5 out of 5 1.

“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.”

of Camp Hill, PA   
09/04/2018    Review submitted online
5 out of 5 1.

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More information

About this clinic

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.

Clinic 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

Call this clinic today!

(717) 516-3730

Or request an appointment online

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.