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DR. ANN MARIE KNOWLTON AU.D.
NPI 1437438892
Audiologist in Parkersburg, WV

Active since August 16, 2011Accepts Medicare Assignment
2012 GARFIELD AVE STE 4, PARKERSBURG, WV 26101(304) 428-2403(304) 428-3270 Get Directions Write a Review

NPPES record last updated: February 24, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Feb 24, 2025, Oct 21, 2021, Feb 25, 2020 and 1 more (4 updates tracked since 2019).

About Dr. Ann Marie Knowlton Au.d. NPPES

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

DR. ANN MARIE KNOWLTON AU.D. (NPI 1437438892) is an individual audiologist in Parkersburg, West Virginia, licensed in West Virginia (A-0279) and active in the NPI registry since August 2011. She maintains a secondary practice location in Charleston and is a graduate of Other (2011).

NPPES Registry Identity

NPI1437438892
Entity TypeIndividualFemale
Primary Taxonomy231H00000X
Provider Legal NameDR. ANN MARIE KNOWLTONCredential: AU.D.
Location Address2012 GARFIELD AVE STE 4Parkersburg, WV 26101-2541
Mailing Address2012 Garfield Ave, Ste 4Parkersburg, WV 26101-2539 · (304) 428-2403 · Fax (304) 428-3270
Phone(304) 428-2403
Fax(304) 428-3270
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateAugust 16, 2011
Last NPPES UpdateFebruary 24, 20254 updates tracked since enumeration
NPPES CertifiedFebruary 24, 2025
✔ NPI 1437438892 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyAudiologistSpeech, Language and Hearing Service Providers
Taxonomy Code231H00000X
License✔ Licensed in WV · A-0279
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.
Also ListedAudiologist · Assistive Technology SupplierTaxonomy 231HA2500X · License A-0279 (WV)
Also ListedAudiologist-Hearing Aid FitterTaxonomy 237600000X · License A-0279 (WV)
2012 GARFIELD AVE STE 4, Parkersburg, WV 26101
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Other Names 1

Former Name (1)Ann Marie Knopp

Secondary Practice Location 1

Location 1500 Donnally St Ste 200Charleston, WV 25301-1600 · Phone (681) 229-3090

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Ann Marie Knowlton Au.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1951537240
PECOS Enrollment IDI20131114001331

Areas of Expertise CMS Part B claims 4

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.
66 services66 patients
Test for eardrum and muscle function 92550
This test assesses the health of your eardrum and muscles linked to hearing. A small device is placed in your ear that creates pressure changes and sounds. Your ear's responses are recorded to determine if they are functioning properly.
34 services34 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.
31 services31 patients
Placement of ear probe for computerized measurement of repeated sounds with interpretation and report 92588
This procedure involves placing a probe in your ear to measure how it responds to repeated sounds. The data is then interpreted by a computer to assess your hearing health. The findings are compiled into a report for further evaluation.
14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 26101 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$53.20 typical visit price
range $53.20 – $164.59
Typical copayment $13.30 (range $13.30 – $41.14)
Most-billed visit code 99202
Established Patient
$66.84 typical visit price
range $16.47 – $133.29
Typical copayment $16.71 (range $4.11 – $33.32)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

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

DR. RICHARD MICHAEL SQUIRES AU.D.
Audiologist
2012 GARFIELD AVE STE 4
PARKERSBURG, WV 26101
Wood County (304) 428-2403
AUDIOLOGY SERVICES OF WEST VIRGINIA, LLC
Audiologist
2012 GARFIELD AVE STE 4
PARKERSBURG, WV 26101
Wood County (304) 428-2403
LEAH MARIE KOSTIVAL
Occupational Therapist
2012 GARFIELD AVE STE 4
PARKERSBURG, WV 26101
Wood County (304) 428-2403
SHANE MASON AUD
Audiologist
2012 GARFIELD AVE STE 4
PARKERSBURG, WV 26101
Wood County (304) 428-2403
DR. CARLEE ANN SQUIRES AU.D.
Audiologist
2012 GARFIELD AVE STE 4
PARKERSBURG, WV 26101
Wood County (304) 428-2403

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 Ann Knowlton's NPI number?

The NPI number for Ann Knowlton is 1437438892. It was assigned to this individual provider in the NPPES registry on August 16, 2011. The provider is also known as Ann Marie Knopp.

Where is Ann Knowlton located?

Ann Knowlton practices at 2012 Garfield Ave Ste 4, Parkersburg, WV 26101. The listed phone number is (304) 428-2403.

What is Ann Knowlton's specialty?

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

Is Ann Knowlton enrolled in Medicare?

Yes. Ann Knowlton is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Ann Knowlton accept?

Health plans from CareSource list Ann Knowlton as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ann Knowlton was last updated on February 24, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.