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WILLIAM HARRIS CCC-SLP
NPI 1649163254
Speech-Language Pathologist in Gulfport, MS

Active since June 02, 2025
15073 NORTHRUP CUEVAS RD, GULFPORT, MS 39503(228) 697-6084 Get Directions Write a Review

NPPES record last updated: March 17, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 17, 2026, Jun 2, 2025 (2 updates tracked since 2025).

About William Harris Ccc-slp NPPES

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

WILLIAM HARRIS CCC-SLP (NPI 1649163254) is an individual speech-language pathologist provider in Gulfport, Mississippi, licensed in Mississippi (S-5226) and active in the NPI registry since June 2025. He is a graduate of Other (2024).

NPPES Registry Identity

NPI1649163254
Entity TypeIndividualMale
Primary Taxonomy235Z00000X
Provider Legal NameWILLIAM HARRISCredential: CCC-SLP
Location Address15073 NORTHRUP CUEVAS RDGulfport, MS 39503-8213
Mailing Address15073 Northrup Cuevas RdGulfport, MS 39503-8213 · (228) 697-6084
Phone(228) 697-6084
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateJune 2, 2025
Last NPPES UpdateMarch 17, 20262 updates tracked since enumeration
NPPES CertifiedMarch 17, 2026
✔ NPI 1649163254 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 MS · S-5226
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.
15073 NORTHRUP CUEVAS RD, Gulfport, MS 39503
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Harris Ccc-slp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4385155092
PECOS Enrollment IDI20250618002085

Medicare Billing Reassignment

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

Southern Physical Therapy Clinic, Inc.
26 mi
Physical Therapy
1620 HIGHWAY 11 N STE C
Picayune, MS 39466
  • Reassigned Medicare billing, Mississippi enrollment
  • 11 clinicians in this Medicare group
NPI 1801370929 (769) 242-2626

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

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

LETS PLAY PEDIATRIC THERAPY LLC
Speech-Language Pathologist
15073 NORTHRUP CUEVAS RD
GULFPORT, MS 39503
Harrison County (228) 697-6084

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 William Harris's NPI number?

The NPI number for William Harris is 1649163254. It was assigned to this individual provider in the NPPES registry on June 2, 2025.

Where is William Harris located?

William Harris practices at 15073 Northrup Cuevas Rd, Gulfport, MS 39503. The listed phone number is (228) 697-6084.

What is William Harris's specialty?

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

Is William Harris enrolled in Medicare?

Yes. William Harris is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for William Harris's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Harris reassigns Medicare benefits to Southern Physical Therapy Clinic, Inc. (Picayune, MS). 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 William Harris's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Harris accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee list William Harris 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 William Harris was last updated on March 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.