GRACE WILLIAMS PHELPS AUD
NPI 1811888613
Audiologist in Palo Alto, CA

Q: What is Grace Phelps's NPI number?

The NPI number for Grace Phelps is 1811888613. It was assigned to this individual provider in the NPPES registry on July 10, 2025.

Q: What is Grace Phelps's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Grace Phelps was last updated on November 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.

Active since July 10, 2025

730 WELCH RD, PALO ALTO, CA 94304(650) 497-8000 Get Directions Write a Review

NPPES record last updated: November 4, 2025. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Nov 4, 2025, Jul 10, 2025 (2 updates tracked since 2025).

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About Grace Williams Phelps Aud NPPES

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

GRACE WILLIAMS PHELPS AUD (NPI 1811888613) is an individual audiologist in Palo Alto, California, licensed in California (AU4030) and active in the NPI registry since July 2025. She maintains 3 additional practice locations and is a graduate of Other (2025).

NPPES Registry Identity

NPI1811888613

Entity TypeIndividualFemale

Primary Taxonomy231H00000X

Provider Legal NameGRACE WILLIAMS PHELPSCredential: AUD

Location Address730 WELCH RDPalo Alto, CA 94304-1503

Mailing Address725 Welch RdPalo Alto, CA 94304-1601 · (650) 497-8000

Phone(650) 497-8000

Sole ProprietorNo

Medical School CMSOtherGraduated 2025

Enumeration DateJuly 10, 2025

Last NPPES UpdateNovember 4, 20252 updates tracked since enumeration

NPPES CertifiedNovember 4, 2025

✔ NPI 1811888613 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 · AU4030

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.

730 WELCH RD, Palo Alto, CA 94304

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Secondary Practice Locations 3

Location 1725 Welch RdPalo Alto, CA 94304-1601 · Phone (650) 497-8000

Location 22452 Watson Ct Ste 1500Palo Alto, CA 94303-3216 · Phone (650) 498-4327

Location 314651 S Bascom Ave Ste 112Los Gatos, CA 95032-2004 · Phone (408) 385-9922

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Grace Williams Phelps Aud is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3779085261

PECOS Enrollment IDI20250904002551

Other Providers at the Same Location NPPES 20

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

JEAN CHIA M.D.

Pediatrics

730 WELCH RD
PALO ALTO, CA 94304

Santa Clara County (650) 721-6073

DR. LOGAN GRACE FAUST AUD

Audiologist

730 WELCH RD
PALO ALTO, CA 94304

Santa Clara County (650) 724-4800

CAITLIN NICOLE HARRINGTON

Genetic Counselor, MS

730 WELCH RD
PALO ALTO, CA 94304

Santa Clara County (401) 524-1876

LUCILE PACKARD CHILDREN'S HOSPITAL

Clinic/Center (Genetics)

730 WELCH RD, NEUROLOGY CC71015
PALO ALTO, CA 94304

Santa Clara County (650) 723-0993

LUCILE PACKARD CHILDRENS HOSPITAL

General Acute Care Hospital (Children)

730 WELCH RD
PALO ALTO, CA 94304

Santa Clara County (650) 736-7233

LINDEN ELIZABETH FORNOFF M.D.

Neurological Surgery

730 WELCH RD
PALO ALTO, CA 94304

Santa Clara County (650) 497-8000

DR. JACOB C LANGER MD

Surgery (Pediatric Surgery)

730 WELCH RD
PALO ALTO, CA 94304

Santa Clara County (650) 724-5356

EVE BENNETT RORISON RN, CPNP

Nurse Practitioner (Pediatrics)

730 WELCH RD
PALO ALTO, CA 94304

Santa Clara County (650) 724-4800

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 Grace Phelps's NPI number?

The NPI number for Grace Phelps is 1811888613. It was assigned to this individual provider in the NPPES registry on July 10, 2025.

Where is Grace Phelps located?

Grace Phelps practices at 730 Welch Rd, Palo Alto, CA 94304. The listed phone number is (650) 497-8000.

What is Grace Phelps's specialty?

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

Is Grace Phelps enrolled in Medicare?

Yes. Grace Phelps is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Grace Phelps was last updated on November 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.