ERICKA WILLIAMSON LMSW
NPI 1164010419
Social Worker in Rosedale, MD
About Ericka Williamson Lmsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ERICKA WILLIAMSON LMSW (NPI 1164010419) is an individual social worker in Rosedale, Maryland, licensed in Maryland (24239) and active in the NPI registry since January 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
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 and accepts Medicare assignment
Ericka Williamson Lmsw 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 Ericka Williamson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Rosedale, MD 21237
- Reassigned Medicare billing, Maryland enrollment
- 122 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 20
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 Ericka Williamson's NPI number?
The NPI number for Ericka Williamson is 1164010419. It was assigned to this individual provider in the NPPES registry on January 4, 2021.
Where is Ericka Williamson located?
Ericka Williamson practices at 9627 Philadelphia Rd Ste 160, Rosedale, MD 21237. The listed phone number is (410) 780-5203.
What is Ericka Williamson's specialty?
The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.
Is Ericka Williamson enrolled in Medicare?
Yes. Ericka 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 Ericka Williamson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ericka Williamson reassigns Medicare benefits to Thrive Behavioral Health, LLC (Rosedale, 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 Ericka Williamson'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 Ericka Williamson was last updated on January 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Ericka Williamson, LMSW · NPI 1164010419
Social Worker provider in Rosedale, Maryland. Individual provider, active in the CMS NPPES registry since January 4, 2021.
## Identity
- **NPI:** 1164010419 (Entity type: Individual)
- **Enumerated:** January 4, 2021
- **Primary specialty:** Social Worker · taxonomy 104100000X
- **State license:** 24239 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 9627 PHILADELPHIA RD STE 160, Rosedale, MD 21237-4157
- **Phone:** (410) 780-5203 · **Fax:** (410) 780-5205
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Thrive Behavioral Health, LLC (NPI 1053733378, Rosedale, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** January 4, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1164010419) · Data from the CMS NPPES public registry.