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ANNE ELIZABETH WILLIAMSON
NPI 1306516679
Social Worker in Chelsea, MA

Active since September 17, 2021PECOS Enrolled
301 BROADWAY, CHELSEA, MA 02150(617) 889-4860 Get Directions Write a Review

NPPES record last updated: September 17, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Anne Elizabeth Williamson NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ANNE ELIZABETH WILLIAMSON (NPI 1306516679) is an individual social worker in Chelsea, Massachusetts and active in the NPI registry since September 2021. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1306516679
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameANNE ELIZABETH WILLIAMSON
Location Address301 BROADWAYChelsea, MA 02150-2807
Mailing Address301 BroadwayChelsea, MA 02150-2807
Phone(617) 889-4860
Sole ProprietorNo
Enumeration DateSeptember 17, 2021
NPPES CertifiedSeptember 17, 2021
✔ NPI 1306516679 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
301 BROADWAY, Chelsea, MA 02150
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Anne Elizabeth Williamson is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Anne Williamson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

North Suffolk Community Services Inc.
1.1 mi
Clinic/Center
14 PORTER ST
East Boston, MA 02128
  • Reassigned Medicare billing, Massachusetts enrollment
  • 37 clinicians in this Medicare group
NPI 1740209881 (617) 569-3189

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.

ELIZABETH CABRERA
Counselor
301 BROADWAY
CHELSEA, MA 02150
Suffolk County (617) 912-7912
DEBBIE LOPEZ
Social Worker
301 BROADWAY
CHELSEA, MA 02150
Suffolk County (617) 488-5796
MR. MANUEL DE PENA
Counselor
301 BROADWAY
CHELSEA, MA 02150
Suffolk County (617) 972-7914
CAITLIN MARCHETTA
Social Worker
301 BROADWAY
CHELSEA, MA 02150
Suffolk County (617) 912-7914
DAVID LOPEZ
Counselor
301 BROADWAY
CHELSEA, MA 02150
Suffolk County (617) 912-7914
MARK EDWARD DIRSCHEL RN
Registered Nurse
301 BROADWAY
CHELSEA, MA 02150
Suffolk County (617) 912-7912
MRS. MARIA DE LOURDES SANTOS LOPATA
Social Worker
301 BROADWAY
CHELSEA, MA 02150
Suffolk County (781) 729-5689
MISTERE AYELE
Counselor
301 BROADWAY
CHELSEA, MA 02150
Suffolk County (617) 912-7914

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 Anne Williamson's NPI number?

The NPI number for Anne Williamson is 1306516679. It was assigned to this individual provider in the NPPES registry on September 17, 2021.

Where is Anne Williamson located?

Anne Williamson practices at 301 Broadway, Chelsea, MA 02150. The listed phone number is (617) 889-4860.

What is Anne Williamson's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is Anne Williamson enrolled in Medicare?

Yes. Anne Williamson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Anne Williamson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Anne Williamson reassigns Medicare benefits to North Suffolk Community Services Inc. (East Boston, MA). 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 Anne 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 Anne Williamson was last updated on September 17, 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.