GRAHAM WHITTEMORE HENDERSON CF SLP
NPI 1255014130
Speech-Language Pathologist in Lake Forest, IL

Q: What is Graham Henderson's NPI number?

The NPI number for Graham Henderson is 1255014130. It was assigned to this individual provider in the NPPES registry on August 8, 2023.

Q: What is Graham Henderson'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 Graham Henderson was last updated on September 16, 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 August 08, 2023

222 E WISCONSIN AVE STE 203, LAKE FOREST, IL 60045(847) 769-8699 Get Directions Write a Review

NPPES record last updated: September 16, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 16, 2025, Aug 8, 2023 (2 updates tracked since 2023).

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About Graham Whittemore Henderson Cf Slp NPPES

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

GRAHAM WHITTEMORE HENDERSON CF SLP (NPI 1255014130) is an individual speech-language pathologist provider in Lake Forest, Illinois, licensed in Illinois (242.007454) and active in the NPI registry since August 2023.

NPPES Registry Identity

NPI1255014130

Entity TypeIndividualMale

Primary Taxonomy235Z00000X

Provider Legal NameGRAHAM WHITTEMORE HENDERSONCredential: CF SLP

Location Address222 E WISCONSIN AVE STE 203Lake Forest, IL 60045-1721

Mailing Address222 E Wisconsin Ave Ste 203Lake Forest, IL 60045-1721 · (847) 769-8699

Phone(847) 769-8699

Sole ProprietorNo

Enumeration DateAugust 8, 2023

Last NPPES UpdateSeptember 16, 20252 updates tracked since enumeration

NPPES CertifiedSeptember 16, 2025

✔ NPI 1255014130 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 · 242.007454

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.

222 E WISCONSIN AVE STE 203, Lake Forest, IL 60045

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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 Graham Henderson's NPI number?

The NPI number for Graham Henderson is 1255014130. It was assigned to this individual provider in the NPPES registry on August 8, 2023.

Where is Graham Henderson located?

Graham Henderson practices at 222 E Wisconsin Ave Ste 203, Lake Forest, IL 60045. The listed phone number is (847) 769-8699.

What is Graham Henderson'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 Graham Henderson was last updated on September 16, 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.