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MRS. IVY LISA GILLER LCSW
NPI 1447405006
Social Worker - Clinical in Roslyn, NY

Active since November 24, 2008PECOS EnrolledAccepts Medicare Assignment
153 MAIN ST, ROSLYN, NY 11576(516) 625-5863(516) 484-0388 Get Directions Write a Review

NPPES record last updated: November 24, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mrs. Ivy Lisa Giller Lcsw NPPES

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

MRS. IVY LISA GILLER LCSW (NPI 1447405006) is an individual clinical provider in Roslyn, New York, licensed in New York (RO36057-1) and active in the NPI registry since November 2008. She is enrolled in Medicare PECOS and is a graduate of Other (1986).

NPPES Registry Identity

NPI1447405006
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMRS. IVY LISA GILLERCredential: LCSW
Location Address153 MAIN STRoslyn, NY 11576-2250
Mailing Address153 Main StRoslyn, NY 11576-2250 · (516) 625-5863 · Fax (516) 484-0388
Phone(516) 625-5863
Fax(516) 484-0388
Sole ProprietorYes
Medical School CMSOtherGraduated 1986
Enumeration DateNovember 24, 2008
✔ NPI 1447405006 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in NY · RO36057-1
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
153 MAIN ST, Roslyn, NY 11576
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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 and accepts Medicare assignment

Mrs. Ivy Lisa Giller Lcsw 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.

PECOS PAC ID8022145812
PECOS Enrollment IDI20100428000015
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 Ivy Giller reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Nassau Guidance Counseling & Licensed Clinical Social Work Services PC
9.0 mi
Clinical
1262 POWELL AVE
Merrick, NY 11566
  • Reassigned Medicare billing, New York enrollment
  • 32 clinicians in this Medicare group
NPI 1609923515 (516) 829-4891

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11576 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $67.40 – $203.53
Typical copayment $0.00 (range $16.85 – $50.88)
Most-billed visit code NA
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

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

MS. LEE INTROP LCSW
Social Worker (Clinical)
153 MAIN ST
ROSLYN, NY 11576
Nassau County (516) 984-5444
BARBARA SCHURE WEINSCHEL M.D.
Psychiatry & Neurology (Psychiatry)
153 MAIN ST
ROSLYN, NY 11576
Nassau County (516) 484-3829
DR. LISA LANGER PH.D
Psychologist (Clinical)
153 MAIN ST
ROSLYN, NY 11576
Nassau County (516) 458-4269
DR. STACY SHIECHEL PSYD
Psychologist
153 MAIN ST
ROSLYN, NY 11576
Nassau County (516) 647-3443
MS. LORI BELLAN LMHC, CASAC
Counselor (Mental Health)
153 MAIN ST
ROSLYN, NY 11576
Nassau County (516) 426-1459

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 Ivy Giller's NPI number?

The NPI number for Ivy Giller is 1447405006. It was assigned to this individual provider in the NPPES registry on November 24, 2008.

Where is Ivy Giller located?

Ivy Giller practices at 153 Main St, Roslyn, NY 11576. The listed phone number is (516) 625-5863.

What is Ivy Giller's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Ivy Giller enrolled in Medicare?

Yes. Ivy Giller 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 Ivy Giller's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ivy Giller reassigns Medicare benefits to Nassau Guidance Counseling & Licensed Clinical Social Work Services PC (Merrick, 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 Ivy Giller'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 Ivy Giller was last updated on November 24, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.