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ELLEN SIDARI LCSWR
NPI 1154603371
Social Worker in Elmira, NY

Active since September 14, 2011PECOS Enrolled
1019 E WATER ST, ELMIRA, NY 14901(607) 733-5696 Get Directions Write a Review

NPPES record last updated: February 27, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ellen Sidari Lcswr NPPES

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

ELLEN SIDARI LCSWR (NPI 1154603371) is an individual social worker in Elmira, New York, licensed in New York (091028) and active in the NPI registry since September 2011. She is enrolled in Medicare PECOS and is a graduate of Other (2013).

NPPES Registry Identity

NPI1154603371
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameELLEN SIDARICredential: LCSWR
Location Address1019 E WATER STElmira, NY 14901-3332
Mailing Address1019 E Water StElmira, NY 14901-3332 · (607) 733-7661
Phone(607) 733-5696
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateSeptember 14, 2011
Last NPPES UpdateFebruary 27, 2025
NPPES CertifiedFebruary 27, 2025
✔ NPI 1154603371 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in NY · 091028
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.
1019 E WATER ST, Elmira, NY 14901
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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)

Ellen Sidari Lcswr is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID446515803
PECOS Enrollment IDI20180606000382
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 Ellen Sidari reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Family Services Of Chemung County, Inc.
Same address
Counselor
1019 E WATER ST
Elmira, NY 14901
  • Reassigned Medicare billing, New York enrollment
  • 38 clinicians in this Medicare group
NPI 1619922432 (607) 733-5696

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.

KATHLEEN FRICKEL
Registered Nurse
1019 E WATER ST
ELMIRA, NY 14901
Chemung County (607) 733-5696
VICTORIA LYNN FORD
Counselor
1019 E WATER ST
ELMIRA, NY 14901
Chemung County (607) 733-5696
PATRICIA K. PLAISTED
Social Worker
1019 E WATER ST
ELMIRA, NY 14901
Chemung County (607) 733-5696
MRS. BRENDA DEE ROBERSON LMSW
Social Worker
1019 E WATER ST
ELMIRA, NY 14901
Chemung County (607) 737-2490
BARBARA STAGER
Social Worker
1019 E WATER ST
ELMIRA, NY 14901
Chemung County (607) 733-5696
ELIZABETH MARIE LAMBERT LMSW
Social Worker
1019 E WATER ST
ELMIRA, NY 14901
Chemung County (607) 733-5696
GEETHA X LOUISNATHAN MSW
Counselor (Mental Health)
1019 E WATER ST
ELMIRA, NY 14901
Chemung County (607) 733-5696
RAYNEE HODGE MFT
Marriage & Family Therapist
1019 E WATER ST
ELMIRA, NY 14901
Chemung County (607) 733-5696

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 Ellen Sidari's NPI number?

The NPI number for Ellen Sidari is 1154603371. It was assigned to this individual provider in the NPPES registry on September 14, 2011.

Where is Ellen Sidari located?

Ellen Sidari practices at 1019 E Water St, Elmira, NY 14901. The listed phone number is (607) 733-5696.

What is Ellen Sidari's specialty?

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

Is Ellen Sidari enrolled in Medicare?

Yes. Ellen Sidari is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ellen Sidari's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ellen Sidari reassigns Medicare benefits to Family Services Of Chemung County, Inc. (Elmira, NY). 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 Ellen Sidari'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 Ellen Sidari was last updated on February 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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.