Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CLAIRE WITKOWSKI
NPI 1043943483
Speech-Language Pathologist in Philadelphia, PA

Q: What is Claire Witkowski's NPI number?

The NPI number for Claire Witkowski is 1043943483. It was assigned to this individual provider in the NPPES registry on July 4, 2022. The provider is also known as Claire D'antonio.

Q: What is Claire Witkowski's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Q: When was this NPI record last updated?

The NPPES record for Claire Witkowski was last updated on September 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 54 days 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 04, 2022

160 E ERIE AVE, PHILADELPHIA, PA 19134(215) 427-5487 Get Directions Write a Review

NPPES record last updated: September 14, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 14, 2026, Jul 13, 2023, Jul 4, 2022 (3 updates tracked since 2022).

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About Claire Witkowski NPPES

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

CLAIRE WITKOWSKI (NPI 1043943483) is an individual speech-language pathologist provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (SL017075) and active in the NPI registry since July 2022. She maintains a secondary practice location in Marlton.

NPPES Registry Identity

NPI1043943483

Entity TypeIndividualFemale

Primary Taxonomy235Z00000X

Provider Legal NameCLAIRE WITKOWSKI

Location Address160 E ERIE AVEPhiladelphia, PA 19134-1011

Mailing AddressPo Box 13579Reading, PA 19612-3579 · (484) 628-1324

Phone(215) 427-5487

Sole ProprietorNo

Enumeration DateJuly 4, 2022

Last NPPES UpdateSeptember 14, 20263 updates tracked since enumeration

NPPES CertifiedSeptember 14, 2026

✔ NPI 1043943483 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers

Taxonomy Code235Z00000X

Licenses✔ Licensed in PA · SL017075✔ Licensed in NJ · TL-3854

Definition

The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.

160 E ERIE AVE, Philadelphia, PA 19134

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Other Names 1

Former Name (1)Claire D'antonio

Secondary Practice Location 1

Location 1751 Route 73 N Ste 1Marlton, NJ 08053-3456 · Phone (856) 375-2914

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Claire Witkowski is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

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

Stc Pediatrics LLC

Same address

Pediatric Allergy/Immunology

160 E ERIE AVE
Philadelphia, PA 19134

Reassigned Medicare billing, Pennsylvania enrollment
479 clinicians in this Medicare group

NPI 1003450420 (215) 427-5284

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

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.

GEOFFREY LIBARNES BAJWA MD

Pediatrics (Neonatal-Perinatal Medicine)

160 E ERIE AVE
PHILADELPHIA, PA 19134

Philadelphia County (215) 427-5000

STC PEDIATRICS LLC

Pediatrics (Pediatric Allergy/Immunology)

160 E ERIE AVE
PHILADELPHIA, PA 19134

Philadelphia County (215) 427-5284

JOANNA OVERTON DO

Student in an Organized Health Care Education/Training Program

160 E ERIE AVE
PHILADELPHIA, PA 19134

Philadelphia County (215) 427-5000

MS. NEHA BUTT MBBS

Student in an Organized Health Care Education/Training Program

160 E ERIE AVE, ST. CHRISTOPHER'S HOSPITAL FOR CHILDREN
PHILADELPHIA, PA 19134

Philadelphia County (923) 333-1317

CHRISTOPHER HAINES D.O.

Emergency Medicine

160 E ERIE AVE
PHILADELPHIA, PA 19134

Philadelphia County (215) 427-5369

DR. FRASER HUNTINGTON BROWN M.D.

Radiology (Diagnostic Neuroimaging)

160 E ERIE AVE
PHILADELPHIA, PA 19134

Philadelphia County (215) 427-3725

NORRELL KRISTIN ATKINSON MD

Pediatrics (Child Abuse Pediatrics)

160 E ERIE AVE
PHILADELPHIA, PA 19134

Philadelphia County (215) 427-5000

VICTORIA NICOLE HUDSON CRNP-PC

Nurse Practitioner

160 E ERIE AVE
PHILADELPHIA, PA 19134

Philadelphia County (215) 427-5985

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 Claire Witkowski's NPI number?

The NPI number for Claire Witkowski is 1043943483. It was assigned to this individual provider in the NPPES registry on July 4, 2022. The provider is also known as Claire D'antonio.

Where is Claire Witkowski located?

Claire Witkowski practices at 160 E Erie Ave, Philadelphia, PA 19134. The listed phone number is (215) 427-5487.

What is Claire Witkowski's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Is Claire Witkowski enrolled in Medicare?

Yes. Claire Witkowski is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Claire Witkowski's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Claire Witkowski reassigns Medicare benefits to Stc Pediatrics LLC (Philadelphia, PA). 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 Claire Witkowski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Claire Witkowski accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Claire Witkowski 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 Claire Witkowski was last updated on September 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 54 days 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.