BARBARA G. WILLIAMSON M.A., LCSW
NPI 1487864211
Social Worker - Clinical in Rockwall, TX
About Barbara G. Williamson M.a., Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BARBARA G. WILLIAMSON M.A., LCSW (NPI 1487864211) is an individual clinical provider in Rockwall, Texas, licensed in Texas (12871) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS and is a graduate of Other (1982).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 6
Accepted Insurance
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
Barbara G. Williamson M.a., Lcsw 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 Barbara Williamson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Plano, TX 75023
- Reassigned Medicare billing, Texas enrollment
- 126 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 75032 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCKWALL, TX 75032
ROCKWALL, TX 75032
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 Barbara Williamson's NPI number?
The NPI number for Barbara Williamson is 1487864211. It was assigned to this individual provider in the NPPES registry on May 23, 2007.
Where is Barbara Williamson located?
Barbara Williamson practices at 935 W Ralph Hall Pkwy Suite 105, Rockwall, TX 75032. The listed phone number is (972) 742-7679.
What is Barbara Williamson's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Barbara Williamson enrolled in Medicare?
Yes. Barbara Williamson 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 Barbara Williamson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Barbara Williamson reassigns Medicare benefits to Assurasource Ltd (Plano, 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 Barbara Williamson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Barbara Williamson accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Cigna Healthcare, Imperial Insurance Companies, Inc. and Molina Healthcare and 3 other insurers list Barbara 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 Barbara Williamson was last updated on April 22, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Barbara G. Williamson, M.A., LCSW · NPI 1487864211
Clinical provider in Rockwall, Texas. Individual provider, active in the CMS NPPES registry since May 23, 2007.
## Identity
- **NPI:** 1487864211 (Entity type: Individual)
- **Enumerated:** May 23, 2007
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 12871 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 935 W RALPH HALL PKWY, SUITE 105, Rockwall, TX 75032-8701
- **Phone:** (972) 742-7679
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Assurasource Ltd (NPI 1194746016, Plano, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1982
## Record status
- **NPPES last updated:** April 22, 2011
- **Other identifiers:** Medicare PIN TXB117142 (TX); Medicaid 124175405 (TX); Medicare PIN TXB117143 (TX); and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1487864211) · Data from the CMS NPPES public registry.