DR. SHANNON LEVERETTE WILLIAMSON P.H.D.
NPI 1275624181
Speech-Language Pathologist in Mauldin, SC

Q: What is Shannon Williamson's NPI number?

The NPI number for Shannon Williamson is 1275624181. It was assigned to this individual provider in the NPPES registry on September 27, 2006.

Q: What is Shannon Williamson's specialty?

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

Active since September 27, 2006

310 NEW NEELY FERRY RD, MAULDIN, SC 29662(864) 438-0990(864) 478-8383 Get Directions Write a Review

NPPES record last updated: October 19, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Dr. Shannon Leverette Williamson P.h.d. NPPES

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

DR. SHANNON LEVERETTE WILLIAMSON P.H.D. (NPI 1275624181) is an individual speech-language pathologist provider in Mauldin, South Carolina, licensed in South Carolina (2385) and active in the NPI registry since September 2006.

NPPES Registry Identity

NPI1275624181

Entity TypeIndividualFemale

Primary Taxonomy235Z00000X

Provider Legal NameDR. SHANNON LEVERETTE WILLIAMSONCredential: P.H.D.

Location Address310 NEW NEELY FERRY RDMauldin, SC 29662-2617

Mailing Address310 New Neely Ferry RdMauldin, SC 29662-2617 · (864) 438-0990 · Fax (864) 478-8383

Phone(864) 438-0990

Fax(864) 478-8383

Sole ProprietorYes

Enumeration DateSeptember 27, 2006

Last NPPES UpdateOctober 19, 2023

NPPES CertifiedOctober 19, 2023

✔ NPI 1275624181 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 SC · 2385

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.

310 NEW NEELY FERRY RD, Mauldin, SC 29662

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of North Carolina.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Shannon Leverette Williamson P.h.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

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

Upstate Pediatric Speech Therapy Services

Same address

Speech-Language Pathologist

310 NEW NEELY FERRY RD
Mauldin, SC 29662

Reassigned Medicare billing, South Carolina enrollment

NPI 1952693723 (864) 438-0990

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.

UPSTATE PEDIATRIC SPEECH THERAPY SERVICES

Speech-Language Pathologist

310 NEW NEELY FERRY RD
MAULDIN, SC 29662

Greenville County (864) 438-0990

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 Shannon Williamson's NPI number?

The NPI number for Shannon Williamson is 1275624181. It was assigned to this individual provider in the NPPES registry on September 27, 2006.

Where is Shannon Williamson located?

Shannon Williamson practices at 310 New Neely Ferry Rd, Mauldin, SC 29662. The listed phone number is (864) 438-0990.

What is Shannon Williamson's specialty?

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

Is Shannon Williamson enrolled in Medicare?

Yes. Shannon Williamson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Shannon Williamson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Shannon Williamson reassigns Medicare benefits to Upstate Pediatric Speech Therapy Services (Mauldin, SC). 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 Shannon Williamson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Shannon Williamson accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care and Ambetter of North Carolina list Shannon Williamson 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 Shannon Williamson was last updated on October 19, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.