Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Ann Marie Knowlton, AUD

Individual provider Assistive Technology Supplier Audiologist · NPI 1437438892

Dr. Ann Marie Knowlton, AUD is a Qualified Audiologist in Parkersburg, West Virginia. Qualified in 2011, 15 years ago. Practices with Audiology Services of West Virginia LLC, an 11-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in West Virginia.

Years since qualifying
15
Licensed in
WV
In the registry since
2011
Specialties on file
3
What do these letters mean?
AUD — Doctor of Audiology
A hearing specialist who tests hearing and fits hearing aids.

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Practice location Address checks out

2012 Garfield Ave Ste 4
Parkersburg, WV 26101-2541
Phone: (304) 428-2403
Fax: (304) 428-3270
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 500 Donnally St Ste 200, Charleston, WV 25301-1600 — (681) 229-3090

Specialties & licences

Audiologist (primary) Taxonomy 231H00000X · Licence A-0279 (WV)
Assistive Technology Supplier Audiologist Taxonomy 231HA2500X · Licence A-0279 (WV)
Audiologist-Hearing Aid Fitter Taxonomy 237600000X · Licence A-0279 (WV)

Record details

NPI number1437438892
Entity typeIndividual (Type 1)
GenderFemale
Credentials AUD
Sole proprietorNo
NPI enumeratedAugust 16, 2011
Last updated in NPPESFebruary 24, 2025
Certification dateFebruary 24, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyQUALIFIED AUDIOLOGIST
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Audiology Services Of West Virginia Llc — 11 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients69
Services billed 152 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Audiology Services of West Virginia LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 11 clinicians in the practice; 8 are shown here.