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

KATHERINE WESTENDORF SLP
NPI 1205752458
Speech-Language Pathologist in Chicago, IL

Active since June 24, 2026
6840 N SACRAMENTO AVE # 1, CHICAGO, IL 60645(877) 407-3422 Get Directions Write a Review

NPPES record last updated: September 12, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Katherine Westendorf Slp NPPES

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

KATHERINE WESTENDORF SLP (NPI 1205752458) is an individual speech-language pathologist provider in Chicago, Illinois, licensed in Illinois (146009903) and active in the NPI registry since June 2026. She is a graduate of Other (2008).

NPPES Registry Identity

NPI1205752458
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameKATHERINE WESTENDORFCredential: SLP
Location Address6840 N SACRAMENTO AVE # 1Chicago, IL 60645-2740
Mailing Address7 Carnegie PlzCherry Hill, NJ 08003-1000 · (877) 407-3422
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateJune 24, 2026
Last NPPES UpdateSeptember 12, 2026
NPPES CertifiedSeptember 12, 2026
✔ NPI 1205752458 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
License✔ Licensed in IL · 146009903
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.
6840 N SACRAMENTO AVE # 1, Chicago, IL 60645

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Katherine Westendorf Slp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6709350424
PECOS Enrollment IDI20260703000403

Medicare Billing Reassignment

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

Physical Therapist
1 WESTBROOK CORPORATE CTR STE 300
Westchester, IL 60154
  • Reassigned Medicare billing, Illinois enrollment
  • 184 clinicians in this Medicare group

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 8

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

Physical Therapist
6840 N SACRAMENTO AVE # 1
CHICAGO, IL 60645
Speech-Language Pathologist
6840 N SACRAMENTO AVE # 1
CHICAGO, IL 60645
Speech-Language Pathologist
6840 N SACRAMENTO AVE # 1
CHICAGO, IL 60645
Occupational Therapist
6840 N SACRAMENTO AVE # 1
CHICAGO, IL 60645
Occupational Therapist
6840 N SACRAMENTO AVE # 1
CHICAGO, IL 60645
Physical Therapist
6840 N SACRAMENTO AVE # 1
CHICAGO, IL 60645
Occupational Therapist
6840 N SACRAMENTO AVE # 1
CHICAGO, IL 60645
Occupational Therapist
6840 N SACRAMENTO AVE # 1
CHICAGO, IL 60645

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 Katherine Westendorf's NPI number?

The NPI number for Katherine Westendorf is 1205752458. It was assigned to this individual provider in the NPPES registry on June 24, 2026.

Where is Katherine Westendorf located?

Katherine Westendorf practices at 6840 N Sacramento Ave # 1, Chicago, IL 60645. The listed phone number is (877) 407-3422.

What is Katherine Westendorf's specialty?

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

Is Katherine Westendorf enrolled in Medicare?

Yes. Katherine Westendorf is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Katherine Westendorf's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Westendorf reassigns Medicare benefits to Fox Rehabilitation Services Il LLC (Westchester, IL). 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 Katherine Westendorf's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Katherine Westendorf accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Katherine Westendorf 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 Katherine Westendorf was last updated on September 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 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.