NPI age
19 years
Enumerated 2006-09-04
● Active
Type 1 · Individual
MRS. Carol Yvonne Williams, PH.D.,L.C.S.W.
Williams is 1 of 13 social worker providers in Seguin and 1 of 12911 in Texas.
Primary specialty
Social Worker
Plus 2 subspecialties
Licensed in
TX, CA
2 states
Status
Active
No deactivations on record
Last NPPES update
2025-06-05
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 12911 active social worker providers in Texas.
NPI age
19 years
↑ 12 yr above median (7 yr)
State licenses
2 states
Top 92% — 7% of peers are multi-state
Subspecialties
1
In the 19% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-09Enumerated in NPPES
2006
2026
Where they practice
Practice location
Po Box 226
Seguin, TX 781560226
Mailing address
Po Box 226
Seguin, TX 781560226
Specialties
-
Social Worker PrimaryA social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be...
-
Case Manager/Care CoordinatorA person who provides case management services and assists an individual in gaining access to needed medical, social, educational, and/or other services. The person has the ability to provide an assessment and review of completed plan...
Practice context
Solo or small practice. No other active providers share this practice address in NPPES. This provider is listed as a sole proprietor.
Recently enumerated nearby: 2 new social worker providers have been added in Seguin in the last 180 days.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.