JOSEPH WILLIAMS I
NPI 1750817268
Social Worker in Washington, DC
About Joseph Williams I NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSEPH WILLIAMS I (NPI 1750817268) is an individual social worker in Washington, District Of Columbia, licensed in District Of Columbia (LG50077987) and active in the NPI registry since May 2017. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Joseph Williams I is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Joseph Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Washington, DC 20020
- Reassigned Medicare billing, District of Columbia enrollment
- 14 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.
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 Joseph Williams's NPI number?
The NPI number for Joseph Williams is 1750817268. It was assigned to this individual provider in the NPPES registry on May 3, 2017.
Where is Joseph Williams located?
Joseph Williams practices at 1706 W Virginia Ave NE Apt 3, Washington, DC 20002. The listed phone number is (202) 378-3025.
What is Joseph Williams's specialty?
The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.
Is Joseph Williams enrolled in Medicare?
Yes. Joseph Williams is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Joseph Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Williams reassigns Medicare benefits to Umbrella Therapeutic Services, Inc. (Washington, DC). 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 Joseph Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joseph Williams accept?
Health plans from UnitedHealthcare list Joseph Williams 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 Joseph Williams was last updated on May 3, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.