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DR. ARIEL BAXTERBECK FRUENDT AU.D.
NPI 1780018135
Audiologist in Menlo Park, CA

Active since August 21, 2013
3555 ALAMEDA DE LAS PULGAS STE 100, MENLO PARK, CA 94025(650) 854-1980(650) 854-1987 Get Directions Write a Review

NPPES record last updated: August 20, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Ariel Baxterbeck Fruendt Au.d. NPPES

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

DR. ARIEL BAXTERBECK FRUENDT AU.D. (NPI 1780018135) is an individual audiologist in Menlo Park, California, licensed in California (2918) and active in the NPI registry since August 2013. She maintains a secondary practice location in Los Altos and is a graduate of Other (2013).

NPPES Registry Identity

NPI1780018135
Entity TypeIndividualFemale
Primary Taxonomy231H00000X
Provider Legal NameDR. ARIEL BAXTERBECK FRUENDTCredential: AU.D.
Location Address3555 ALAMEDA DE LAS PULGAS STE 100Menlo Park, CA 94025-6509
Mailing Address3555 Alameda De Las Pulgas Ste 100Menlo Park, CA 94025-6509 · (650) 854-1980 · Fax (650) 854-1987
Phone(650) 854-1980
Fax(650) 854-1987
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateAugust 21, 2013
Last NPPES UpdateAugust 20, 2025
NPPES CertifiedAugust 20, 2025
✔ NPI 1780018135 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAudiologistSpeech, Language and Hearing Service Providers
Taxonomy Code231H00000X
License✔ Licensed in CA · 2918
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.
3555 ALAMEDA DE LAS PULGAS STE 100, Menlo Park, CA 94025
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Other Names 1

Former Name (1)Ariel Nicole Baxterbeck Au.d.

Secondary Practice Location 1

Location 1496 1st St Ste 120Los Altos, CA 94022-3677 · Phone (650) 941-0664

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Ariel Baxterbeck Fruendt Au.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3274757638
PECOS Enrollment IDI20140605000976

Medicare Billing Reassignment

Medicare enrollment records show Ariel Fruendt reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pacific Hearing Clinic Inc.
Same address
Audiologist-Hearing Aid Fitter
3555 ALAMEDA DE LAS PULGAS STE 100
Menlo Park, CA 94025
  • Reassigned Medicare billing, California enrollment
  • 11 clinicians in this Medicare group
NPI 1073652673 (650) 854-1980

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 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.
29 services29 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.
21 services21 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.
18 services18 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.
11 services11 patients

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.

PACIFIC HEARING CLINIC INC.
Audiologist-Hearing Aid Fitter
3555 ALAMEDA DE LAS PULGAS STE 100
MENLO PARK, CA 94025
San Mateo County (650) 854-1980
RACHEL LYNN APPLETON AUD
Audiologist
3555 ALAMEDA DE LAS PULGAS STE 100
MENLO PARK, CA 94025
San Mateo County (650) 854-1980
LING ZHONG AU.D.
Audiologist
3555 ALAMEDA DE LAS PULGAS STE 100
MENLO PARK, CA 94025
San Mateo County (650) 854-1980
BRIANNE MANGOLD AU.D.
Audiologist
3555 ALAMEDA DE LAS PULGAS STE 100
MENLO PARK, CA 94025
San Mateo County (650) 854-1980
AMANDA DUREN AUD
Audiologist
3555 ALAMEDA DE LAS PULGAS STE 100
MENLO PARK, CA 94025
San Mateo County (650) 854-1980

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 Ariel Fruendt's NPI number?

The NPI number for Ariel Fruendt is 1780018135. It was assigned to this individual provider in the NPPES registry on August 21, 2013. The provider is also known as Ariel Nicole Baxterbeck Au.D..

Where is Ariel Fruendt located?

Ariel Fruendt practices at 3555 Alameda De Las Pulgas Ste 100, Menlo Park, CA 94025. The listed phone number is (650) 854-1980.

What is Ariel Fruendt's specialty?

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

Is Ariel Fruendt enrolled in Medicare?

Yes. Ariel Fruendt is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ariel Fruendt's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ariel Fruendt reassigns Medicare benefits to Pacific Hearing Clinic Inc. (Menlo Park, CA). The 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 Ariel Fruendt'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 Ariel Fruendt was last updated on August 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.