GARRETT GIANNESCHI DO
NPI 1851929921
Psychiatry & Neurology - Neurology with Special Qualifications in Child Neurology in South Plainfield, NJ

Active since April 01, 2020PECOS Enrolled
1378 SCHINDLER DR, SOUTH PLAINFIELD, NJ 07080(908) 294-1161 Get Directions Write a Review

NPPES record last updated: November 26, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 26, 2025, Apr 1, 2020 (2 updates tracked since 2020).

About Garrett Gianneschi Do NPPES

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

GARRETT GIANNESCHI DO (NPI 1851929921) is an individual neurology with special qualifications in child neurology provider in South Plainfield, New Jersey, licensed in New Jersey (25MB12131900) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS and is a graduate of Rowan University School Of Osteopathic Medicine (2020).

NPPES Registry Identity

NPI1851929921
Entity TypeIndividualMale
Primary Taxonomy2084N0402X
Provider Legal NameGARRETT GIANNESCHICredential: DO
Location Address1378 SCHINDLER DRSouth Plainfield, NJ 07080-4937
Mailing Address1378 Schindler DrSouth Plainfield, NJ 07080-4937 · (908) 294-1161
Sole ProprietorNo
Medical School CMSRowan University School Of Osteopathic MedicineGraduated 2020
Enumeration DateApril 1, 2020
Last NPPES UpdateNovember 26, 20252 updates tracked since enumeration
NPPES CertifiedNovember 26, 2025
✔ NPI 1851929921 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Neurology with Special Qualifications in Child NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0402X
License✔ Licensed in NJ · 25MB12131900
Definition
A Child Neurologist specializes in neurology with special skills in diagnosis and treatment of neurologic disorders of the neonatal period, infancy, early childhood, and adolescence.
1378 SCHINDLER DR, South Plainfield, NJ 07080

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Garrett Gianneschi Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8224523089
PECOS Enrollment IDI20251218003224
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 Garrett Gianneschi reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Specialist
225 WILLIAMSON ST
Elizabeth, NJ 07202
  • Reassigned Medicare billing, New Jersey enrollment
  • 1,894 clinicians in this Medicare group
Neurology
90 BERGEN ST
Newark, NJ 07103
  • Reassigned Medicare billing, New Jersey enrollment
  • 21 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07080 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
$144.86 typical visit price
range $63.84 – $190.92
Typical copayment $36.21 (range $15.96 – $47.73)
Most-billed visit code 99204
Established Patient
$111.57 typical visit price
range $20.97 – $155.92
Typical copayment $27.89 (range $5.24 – $38.98)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Garrett Gianneschi's NPI number?

The NPI number for Garrett Gianneschi is 1851929921. It was assigned to this individual provider in the NPPES registry on April 1, 2020.

Where is Garrett Gianneschi located?

Garrett Gianneschi practices at 1378 Schindler Dr, South Plainfield, NJ 07080. The listed phone number is (908) 294-1161.

What is Garrett Gianneschi's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology with Special Qualifications in Child Neurology, with taxonomy code 2084N0402X.

Is Garrett Gianneschi enrolled in Medicare?

Yes. Garrett Gianneschi is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Garrett Gianneschi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Garrett Gianneschi reassigns Medicare benefits to 2 organizations: Barnabas Health Medical Group PC (Elizabeth, NJ) and University Physician Associates Of New Jersey Inc (Newark, NJ). 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 Garrett Gianneschi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Garrett Gianneschi accept?

Health plans from Oscar Health list Garrett Gianneschi as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Garrett Gianneschi was last updated on November 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.