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OLIVIA MARIE CLARK
NPI 1023853108
Speech-Language Pathologist in Vernon Hills, IL

Active since June 28, 2024Accepts Medicare Assignment
1111 N MILWAUKEE AVE UNIT 323, VERNON HILLS, IL 60061(714) 309-2019 Get Directions Write a Review

NPPES record last updated: November 18, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 18, 2025, Jun 28, 2024 (2 updates tracked since 2024).

About Olivia Marie Clark NPPES

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

OLIVIA MARIE CLARK (NPI 1023853108) is an individual speech-language pathologist provider in Vernon Hills, Illinois, licensed in Illinois (146.028763) and active in the NPI registry since June 2024. She is a graduate of Other (2022).

NPPES Registry Identity

NPI1023853108
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameOLIVIA MARIE CLARK
Location Address1111 N MILWAUKEE AVE UNIT 323Vernon Hills, IL 60061-1681
Mailing Address1111 N Milwaukee Ave Unit 323Vernon Hills, IL 60061-1681 · (714) 309-2019
Phone(714) 309-2019
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateJune 28, 2024
Last NPPES UpdateNovember 18, 20252 updates tracked since enumeration
NPPES CertifiedNovember 18, 2025
✔ NPI 1023853108 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 IL · 146.028763✔ Licensed in CO · 0005771✔ Licensed in CA · 35244
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.
1111 N MILWAUKEE AVE UNIT 323, Vernon Hills, IL 60061
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Olivia Marie Clark is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2264952399
PECOS Enrollment IDI20251204000399

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 Olivia Clark's NPI number?

The NPI number for Olivia Clark is 1023853108. It was assigned to this individual provider in the NPPES registry on June 28, 2024.

Where is Olivia Clark located?

Olivia Clark practices at 1111 N Milwaukee Ave Unit 323, Vernon Hills, IL 60061. The listed phone number is (714) 309-2019.

What is Olivia Clark's specialty?

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

Is Olivia Clark enrolled in Medicare?

Yes. Olivia Clark is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Olivia Clark was last updated on November 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.