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

SYDNEY WELLENSTEIN SLP-CCC
NPI 1346914991
Speech-Language Pathologist in Madison, WI

Active since August 06, 2021
202 S PARK ST, MADISON, WI 53715(608) 417-3370 Get Directions Write a Review

NPPES record last updated: July 8, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 8, 2026, Aug 6, 2021 (2 updates tracked since 2021).

About Sydney Wellenstein Slp-ccc NPPES

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

SYDNEY WELLENSTEIN SLP-CCC (NPI 1346914991) is an individual speech-language pathologist provider in Madison, Wisconsin and active in the NPI registry since August 2021.

NPPES Registry Identity

NPI1346914991
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameSYDNEY WELLENSTEINCredential: SLP-CCC
Location Address202 S PARK STMadison, WI 53715-1507
Mailing Address202 S Park StMadison, WI 53715-1507 · (608) 417-3390
Phone(608) 417-3370
Sole ProprietorNo
Enumeration DateAugust 6, 2021
Last NPPES UpdateJuly 8, 20262 updates tracked since enumeration
NPPES CertifiedJuly 8, 2026
✔ NPI 1346914991 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
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.
202 S PARK ST, Madison, WI 53715
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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.

ASHLEY N BERKA NURSE PRACTITIONER
Nurse Practitioner
202 S PARK ST
MADISON, WI 53715
Dane County (608) 417-6667
BROOK INGEBRIGTSON APNP
Nurse Practitioner (Neonatal, Critical Care)
202 S PARK ST
MADISON, WI 53715
Dane County (608) 417-6236
PAUL LADWIG RN
Registered Nurse
202 S PARK ST
MADISON, WI 53715
Dane County (608) 417-6000
DIXITA KAPPELL NP
Nurse Practitioner (Neonatal, Critical Care)
202 S PARK ST
MADISON, WI 53715
Dane County (608) 417-6236
SUSAN R WILHELM PA-C
Physician Assistant (Medical)
202 S PARK ST, MERITER ATRIUM
MADISON, WI 53715
Dane County (608) 417-5970
PETER GERARD PRYDE MD
Anesthesiology
202 S PARK ST, 4 TOWER
MADISON, WI 53715
Dane County (608) 267-6676
SUSAN MENG PT
Physical Therapist
202 S PARK ST
MADISON, WI 53715
Dane County (608) 417-6000
BRIAN DAVID GRIFFITH M.D.
Internal Medicine (Critical Care Medicine)
202 S PARK ST
MADISON, WI 53715
Dane County (608) 417-5950

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 Sydney Wellenstein's NPI number?

The NPI number for Sydney Wellenstein is 1346914991. It was assigned to this individual provider in the NPPES registry on August 6, 2021.

Where is Sydney Wellenstein located?

Sydney Wellenstein practices at 202 S Park St, Madison, WI 53715. The listed phone number is (608) 417-3370.

What is Sydney Wellenstein's specialty?

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

When was this NPI record last updated?

The NPPES record for Sydney Wellenstein was last updated on July 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 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.