1. Home
  2. Directory
  3. Pennsylvania
  4. Bryn Mawr
  5. Audiologist
  6. NPI Profile

CHRISTI-MARIE WILLIAMSON AU.D.
NPI 1043836372
Audiologist in Bryn Mawr, PA

Active since June 23, 2020
825 OLD LANCASTER RD STE 300, BRYN MAWR, PA 19010(610) 415-1100(610) 415-1101 Get Directions Write a Review

NPPES record last updated: June 10, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 10, 2022, Jun 23, 2020 (2 updates tracked since 2020).

About Christi-marie Williamson Au.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHRISTI-MARIE WILLIAMSON AU.D. (NPI 1043836372) is an individual audiologist in Bryn Mawr, Pennsylvania and active in the NPI registry since June 2020. She maintains 2 additional practice locations.

NPPES Registry Identity

NPI1043836372
Entity TypeIndividualFemale
Primary Taxonomy231H00000X
Provider Legal NameCHRISTI-MARIE WILLIAMSONCredential: AU.D.
Location Address825 OLD LANCASTER RD STE 300Bryn Mawr, PA 19010-3235
Mailing Address826 Main St Ste 201Phoenixville, PA 19460-4459 · (610) 415-1100
Phone(610) 415-1100
Fax(610) 415-1101
Sole ProprietorNo
Enumeration DateJune 23, 2020
Last NPPES UpdateJune 10, 20222 updates tracked since enumeration
NPPES CertifiedJune 10, 2022
✔ NPI 1043836372 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAudiologistSpeech, Language and Hearing Service Providers
Taxonomy Code231H00000X
Definition
(1) A specialist in evaluation, habilitation and rehabilitation of those whose communication disorders center in whole or in part in hearing function. Audiologists are autonomous professionals who identify, assess, and manage disorders of the auditory, balance and other neural systems. Audiologists provide audiological (aural) rehabilitation to children and adults across the entire age span. Audiologists select, fit and dispense amplification systems such as hearing aids and related devices. (2) An audiologist is a person qualified by a master's degree in audiology, licensed by the state, where applicable, and practicing within the scope of that license. Audiologists evaluate and treat patients with impaired hearing. They plan, direct and conduct rehabilitative programs with audiotry substitutional devises (hearing aids) and other therapy.
825 OLD LANCASTER RD STE 300, Bryn Mawr, PA 19010
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1826 Main St Ste 201Phoenixville, PA 19460-4459 · Phone (610) 415-1100 · Fax (610) 415-1101
Location 25 S Sunnybrook Rd Ste 300Pottstown, PA 19464-3285 · Phone (610) 415-1100 · Fax (610) 415-1101

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Christi-marie Williamson Au.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignments

3

Medicare enrollment records show Christi-marie Williamson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hearing Health PA, LLC
8.8 mi
Hearing Aid Equipment
30 S VALLEY RD STE 206
Paoli, PA 19301
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 6 clinicians in this Medicare group
NPI 1376962811 (610) 296-5857
Ear Nose Throat Facial Plastic Surgery Specialists PC
15 mi
Otolaryngology
723 FITZWATERTOWN RD
Willow Grove, PA 19090
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 5 clinicians in this Medicare group
NPI 1780016360 (215) 659-8805
Alpaca Audiology, LLC
322 mi
Hearing Aid Equipment
108 AVON AVE
Washington, NC 27889
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 7 clinicians in this Medicare group
NPI 1659936367 (252) 974-0909

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Comprehensive hearing and speech recognition test 92557
A comprehensive hearing and speech recognition test assesses your ability to hear and understand spoken words. It includes hearing tests to check for issues with sound perception and speech tests to evaluate your word recognition. It's a crucial step in identifying any hearing or speech problems.
25 services25 patients
Test to assess middle ear function 92567
A test to assess middle ear function, also known as an impedance audiometry, helps evaluate how well your middle ear works. It measures the movement of your eardrum in response to changes in air pressure. This can help identify issues like fluid build-up, ear infections, or eardrum perforations.
25 services25 patients
Test for hearing various pitches using earphone 92552
This is a hearing test where earphones are worn to detect different pitch levels. Sounds of various frequencies are played, and you indicate when you hear them. This helps evaluate your hearing ability. It's safe, comfortable, and non-invasive.
18 services18 patients
Test for ability to detect and repeat spoken words with speech recognition 92556
This is a hearing test where you'll listen to spoken words through headphones and repeat them. It helps evaluate your ability to understand speech. It's a simple, non-invasive procedure that provides valuable information about your hearing health.
18 services18 patients
Test to detect loudness differences 92562
This is an audiology test that measures your ability to perceive different volumes of sound. It helps identify any hearing issues you may have. The test involves wearing headphones and listening to sounds at varying volumes. It's a non-invasive, painless procedure.
17 services17 patients

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BROKER,CRAMER & SWANSON ENT, PC
Otolaryngology (Facial Plastic Surgery)
825 OLD LANCASTER RD STE 300
BRYN MAWR, PA 19010
Delaware County (610) 415-1100

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Christi-marie Williamson's NPI number?

The NPI number for Christi-marie Williamson is 1043836372. It was assigned to this individual provider in the NPPES registry on June 23, 2020.

Where is Christi-marie Williamson located?

Christi-marie Williamson practices at 825 Old Lancaster Rd Ste 300, Bryn Mawr, PA 19010. The listed phone number is (610) 415-1100.

What is Christi-marie Williamson's specialty?

The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.

Is Christi-marie Williamson enrolled in Medicare?

Yes. Christi-marie Williamson is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Christi-marie Williamson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christi-marie Williamson reassigns Medicare benefits to 3 organizations: Hearing Health PA, LLC (Paoli, PA), Ear Nose Throat Facial Plastic Surgery Specialists PC (Willow Grove, PA) and Alpaca Audiology, LLC (Washington, NC). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Christi-marie Williamson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Christi-marie Williamson was last updated on June 10, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.