MR. ELWIN LAWSON SIMS M.S.,CCC-SLP
NPI 1790972776
Speech-Language Pathologist in Missouri City, TX
About Mr. Elwin Lawson Sims M.s.,ccc-slp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. ELWIN LAWSON SIMS M.S.,CCC-SLP (NPI 1790972776) is an individual speech-language pathologist provider in Missouri City, Texas, licensed in Texas (13330) and active in the NPI registry since October 2007.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. Elwin Lawson Sims M.s.,ccc-slp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Elwin Sims reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Pasadena, TX 77502
- Reassigned Medicare billing, Texas enrollment
- 2 clinicians in this Medicare group
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.
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 Elwin Sims's NPI number?
The NPI number for Elwin Sims is 1790972776. It was assigned to this individual provider in the NPPES registry on October 3, 2007.
Where is Elwin Sims located?
Elwin Sims practices at 2731 Gregway Ln, Missouri City, TX 77459. The listed phone number is (281) 261-8101.
What is Elwin Sims's specialty?
The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.
Is Elwin Sims enrolled in Medicare?
Yes. Elwin Sims is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Elwin Sims's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elwin Sims reassigns Medicare benefits to Advance Plus Therapy Services, LLC (Pasadena, TX). 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 Elwin Sims'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 Elwin Sims was last updated on October 3, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Mr. Elwin Lawson Sims, M.S.,CCC-SLP · NPI 1790972776
Speech-Language Pathologist provider in Missouri City, Texas. Individual provider, active in the CMS NPPES registry since October 3, 2007.
## Identity
- **NPI:** 1790972776 (Entity type: Individual)
- **Enumerated:** October 3, 2007
- **Primary specialty:** Speech-Language Pathologist · taxonomy 235Z00000X
- **State license:** 13330 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2731 GREGWAY LN, Missouri City, TX 77459-2929
- **Phone:** (281) 261-8101
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Bills Medicare through:** Advance Plus Therapy Services, LLC (NPI 1679873889, Pasadena, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 3, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1790972776) · Data from the CMS NPPES public registry.