Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

KATHERINE ELIZABETH HENDERSON CCC-SLP
NPI 1669384046
Speech-Language Pathologist in Waltham, MA

Q: What is Katherine Henderson's NPI number?

The NPI number for Katherine Henderson is 1669384046. It was assigned to this individual provider in the NPPES registry on September 21, 2026.

Q: What is Katherine Henderson's specialty?

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

Active since September 21, 2026

9 HOPE AVE, WALTHAM, MA 02453(210) 978-6089 Get Directions Write a Review

NPPES record added: September 21, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

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About Katherine Elizabeth Henderson Ccc-slp NPPES

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

KATHERINE ELIZABETH HENDERSON CCC-SLP (NPI 1669384046) is an individual speech-language pathologist provider in Waltham, Massachusetts, licensed in Massachusetts (SLP102202) and active in the NPI registry since September 2026.

NPPES Registry Identity

NPI1669384046

Entity TypeIndividualFemale

Primary Taxonomy235Z00000X

Provider Legal NameKATHERINE ELIZABETH HENDERSONCredential: CCC-SLP

Location Address9 HOPE AVEWaltham, MA 02453-2741

Mailing Address235 Old Colony Ave Apt 531Boston, MA 02127-7913 · (210) 978-6089

Phone(210) 978-6089

Sole ProprietorNo

Enumeration DateSeptember 21, 2026

NPPES CertifiedSeptember 21, 2026

✔ NPI 1669384046 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 MA · SLP102202

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.

9 HOPE AVE, Waltham, MA 02453

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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.

ALYSSA BARZACH M.S., CCC-SLP

Speech-Language Pathologist

9 HOPE AVE
WALTHAM, MA 02453

Middlesex County (781) 216-2209

JULIE FRENCH LICSW

Social Worker (Clinical)

9 HOPE AVE
WALTHAM, MA 02453

Middlesex County (617) 355-6000

MARY WOODLAND LICSW

Social Worker (Clinical)

9 HOPE AVE
WALTHAM, MA 02453

Middlesex County (781) 216-3352

DR. AMANDA ROSE MICHEL PT, DPT

Physical Therapist

9 HOPE AVE
WALTHAM, MA 02453

Middlesex County (781) 216-2100

SHARON SHAHAM MS

Speech-Language Pathologist

9 HOPE AVE
WALTHAM, MA 02453

Middlesex County (781) 216-2200

TERRELL A CLARK PHD

Psychologist (Clinical Child & Adolescent)

9 HOPE AVE
WALTHAM, MA 02453

Middlesex County (781) 216-2200

TAMAR M GOMES AU.D.

Audiologist

9 HOPE AVE
WALTHAM, MA 02453

Middlesex County (781) 216-2304

NICOLE M. SEMON PT, DPT, PCS

Physical Therapist

9 HOPE AVE, DEPARTMENT OF PHYSICAL AND OCCUPATIONAL THERAPY
WALTHAM, MA 02453

Middlesex County (781) 216-3670

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 Henderson's NPI number?

The NPI number for Katherine Henderson is 1669384046. It was assigned to this individual provider in the NPPES registry on September 21, 2026.

Where is Katherine Henderson located?

Katherine Henderson practices at 9 Hope Ave, Waltham, MA 02453. The listed phone number is (210) 978-6089.

What is Katherine 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 Katherine Henderson was last updated on September 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.