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FIONA THOMAS LMSW
NPI 1043621329
Social Worker in Brooklyn, NY

Active since May 08, 2014PECOS Enrolled
111 DAHLGREN PL, BROOKLYN, NY 11228(718) 745-4288 Get Directions Write a Review

NPPES record last updated: October 1, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Fiona Thomas Lmsw NPPES

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

FIONA THOMAS LMSW (NPI 1043621329) is an individual social worker in Brooklyn, New York, licensed in New York (083326) and active in the NPI registry since May 2014. She is enrolled in Medicare PECOS and maintains a secondary practice location in Springfield Gardens.

NPPES Registry Identity

NPI1043621329
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameFIONA THOMASCredential: LMSW
Location Address111 DAHLGREN PLBrooklyn, NY 11228-3693
Mailing Address32 Lenox Rd Apt F10Brooklyn, NY 11226-2339 · (646) 251-5167
Phone(718) 745-4288
Sole ProprietorNo
Enumeration DateMay 8, 2014
Last NPPES UpdateOctober 1, 2020
NPPES CertifiedOctober 1, 2020
✔ NPI 1043621329 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Licenses✔ Licensed in NY · 083326✔ Licensed · 189
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.
111 DAHLGREN PL, Brooklyn, NY 11228
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Secondary Practice Location 1

Location 118220 141st AveSpringfield Gardens, NY 11413-3003 · Phone (646) 251-5167

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Fiona Thomas Lmsw 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 Reassignments

2

Medicare enrollment records show Fiona Thomas reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Brooklyn Psychotherapy Lcsw Services PC
Same address
Clinical
111 DAHLGREN PL BSMT
Brooklyn, NY 11228
  • Reassigned Medicare billing, New York enrollment
  • 5 clinicians in this Medicare group
NPI 1134788540 (718) 745-4288
Advanced Psychotherapy And Behavioral Health Services Lcsw PC
  • Reassigned Medicare billing, New York enrollment
  • 5 clinicians in this Medicare group
No phone listed

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 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SARA ELSEHETRY MA, MHC
Counselor (Mental Health)
111 DAHLGREN PL
BROOKLYN, NY 11228
Kings County (718) 745-4588
GIRLING HEALTH CARE SERVICES, INC.
Home Health
111 DAHLGREN PL
BROOKLYN, NY 11228
Kings County (718) 307-3430
BENITEZ MEDICAL PROFESSIONAL PC
Psychiatry & Neurology (Geriatric Psychiatry)
111 DAHLGREN PL
BROOKLYN, NY 11228
Kings County (718) 745-4288
MILLICENT AMPADU LCSW
Social Worker (Clinical)
111 DAHLGREN PL
BROOKLYN, NY 11228
Kings County (718) 745-4288

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 Fiona Thomas's NPI number?

The NPI number for Fiona Thomas is 1043621329. It was assigned to this individual provider in the NPPES registry on May 8, 2014.

Where is Fiona Thomas located?

Fiona Thomas practices at 111 Dahlgren Pl, Brooklyn, NY 11228. The listed phone number is (718) 745-4288.

What is Fiona Thomas's specialty?

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

Is Fiona Thomas enrolled in Medicare?

Yes. Fiona Thomas is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Fiona Thomas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Fiona Thomas reassigns Medicare benefits to 2 organizations: Brooklyn Psychotherapy Lcsw Services PC (Brooklyn, NY) and Advanced Psychotherapy And Behavioral Health Services Lcsw PC (NY). Each 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 Fiona Thomas'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 Fiona Thomas was last updated on October 1, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.