MS. LESLIEANN C WILLIAMS M.S., CCC-SLP
NPI 1003356254
Speech-Language Pathologist in Kensington, MD
About Ms. Leslieann C Williams M.s., Ccc-slp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. LESLIEANN C WILLIAMS M.S., CCC-SLP (NPI 1003356254) is an individual speech-language pathologist provider in Kensington, Maryland, licensed in Maryland (05880) and active in the NPI registry since March 2017. She maintains a secondary practice location in Gaithersburg and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ms. Leslieann C Williams M.s., Ccc-slp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Leslieann Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Gaithersburg, MD 20878
- Reassigned Medicare billing, District of Columbia enrollment
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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KENSINGTON, MD 20895
KENSINGTON, MD 20895
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 Leslieann Williams's NPI number?
The NPI number for Leslieann Williams is 1003356254. It was assigned to this individual provider in the NPPES registry on March 6, 2017.
Where is Leslieann Williams located?
Leslieann Williams practices at 3620 Littledale Rd, Kensington, MD 20895. The listed phone number is (540) 219-6238.
What is Leslieann Williams's specialty?
The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.
Is Leslieann Williams enrolled in Medicare?
Yes. Leslieann Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Leslieann Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leslieann Williams reassigns Medicare benefits to Integra Speech LLC (Gaithersburg, MD). 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 Leslieann Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Leslieann Williams was last updated on June 22, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Ms. Leslieann C Williams, M.S., CCC-SLP · NPI 1003356254
Speech-Language Pathologist provider in Kensington, Maryland. Individual provider, active in the CMS NPPES registry since March 6, 2017.
## Identity
- **NPI:** 1003356254 (Entity type: Individual)
- **Enumerated:** March 6, 2017
- **Primary specialty:** Speech-Language Pathologist · taxonomy 235Z00000X
- **State license:** 05880 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 3620 LITTLEDALE RD, Kensington, MD 20895-3424
- **Phone:** (540) 219-6238
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Integra Speech LLC (NPI 1992471502, Gaithersburg, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** June 22, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1003356254) · Data from the CMS NPPES public registry.