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MARGARET SULLIVAN HOLLADAY M.C.D, CCC-SLP
NPI 1821569831
Speech-Language Pathologist in Huntsville, AL

Active since December 17, 2018
107 GOVERNORS DR SW UNIT 101, HUNTSVILLE, AL 35801(256) 265-7952 Get Directions Write a Review

NPPES record last updated: January 18, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 18, 2026, May 8, 2024, Dec 17, 2018 (3 updates tracked since 2018).

About Margaret Sullivan Holladay M.c.d, Ccc-slp NPPES

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

MARGARET SULLIVAN HOLLADAY M.C.D, CCC-SLP (NPI 1821569831) is an individual speech-language pathologist provider in Huntsville, Alabama, licensed in Alabama (4156) and active in the NPI registry since December 2018.

NPPES Registry Identity

NPI1821569831
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameMARGARET SULLIVAN HOLLADAYCredential: M.C.D, CCC-SLP
Location Address107 GOVERNORS DR SW UNIT 101Huntsville, AL 35801-4326
Mailing Address107 Governors Dr Sw Unit 101Huntsville, AL 35801-4326
Phone(256) 265-7952
Sole ProprietorNo
Enumeration DateDecember 17, 2018
Last NPPES UpdateJanuary 18, 20263 updates tracked since enumeration
NPPES CertifiedJanuary 18, 2026
✔ NPI 1821569831 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 AL · 4156
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.
107 GOVERNORS DR SW UNIT 101, Huntsville, AL 35801
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Alabama.Insurance ›

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 Margaret Holladay's NPI number?

The NPI number for Margaret Holladay is 1821569831. It was assigned to this individual provider in the NPPES registry on December 17, 2018.

Where is Margaret Holladay located?

Margaret Holladay practices at 107 Governors Dr SW Unit 101, Huntsville, AL 35801. The listed phone number is (256) 265-7952.

What is Margaret Holladay's specialty?

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

What insurance does Margaret Holladay accept?

Health plans from Blue Cross and Blue Shield of Alabama list Margaret Holladay 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 Margaret Holladay was last updated on January 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.