DR. ILANA HARWAYNE-GIDANSKY MD
NPI 1861633778
Pediatrics in Stony Brook, NY

Q: What is Ilana Harwayne-gidansky's NPI number?

The NPI number for Ilana Harwayne-gidansky is 1861633778. It was assigned to this individual provider in the NPPES registry on March 23, 2009.

Q: What is Ilana Harwayne-gidansky's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Active since March 23, 2009PECOS EnrolledAccepts Medicare Assignment

100 NICOLLS RD, PICU, LEVEL 11, STONY BROOK, NY 11794(631) 444-2725(631) 444-2894 Get Directions Write a Review

NPPES record last updated: May 14, 2015. Verified against the NPPES registry weekly; last sync: November 08, 2026.

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About Dr. Ilana Harwayne-gidansky Md NPPES

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

DR. ILANA HARWAYNE-GIDANSKY MD (NPI 1861633778) is an individual pediatrics provider in Stony Brook, New York, licensed in New York (259724) and active in the NPI registry since March 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2009).

NPPES Registry Identity

NPI1861633778

Entity TypeIndividualFemale

Primary Taxonomy208000000X

Provider Legal NameDR. ILANA HARWAYNE-GIDANSKYCredential: MD

Location Address100 NICOLLS RD, PICU, LEVEL 11Stony Brook, NY 11794-8111

Mailing AddressPo Box 1559Stony Brook, NY 11790-0989 · (631) 444-0650

Phone(631) 444-2725

Fax(631) 444-2894

Sole ProprietorNo

Medical School CMSOtherGraduated 2009

Enumeration DateMarch 23, 2009

Last NPPES UpdateMay 14, 2015

✔ NPI 1861633778 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

License✔ Licensed in NY · 259724

Definition

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

100 NICOLLS RD, Stony Brook, NY 11794

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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

Dr. Ilana Harwayne-gidansky Md 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 ID1052626983

PECOS Enrollment IDI20150820011374

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 Ilana Harwayne-gidansky reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Albany Medical College

125 mi

Allergy & Immunology

47 NEW SCOTLAND AVE
Albany, NY 12208

Reassigned Medicare billing, New York enrollment
1,640 clinicians in this Medicare group

NPI 1497921688 (518) 262-9600

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 11794 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

$105.06 typical visit price

range $67.40 – $203.53

Typical copayment $26.26 (range $16.85 – $50.88)

Most-billed visit code 99203

Established Patient

$117.62 typical visit price

range $21.66 – $164.45

Typical copayment $29.40 (range $5.41 – $41.11)

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.

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.

MALWINA WLOCH M.D.

Anesthesiology

100 NICOLLS RD, SUNY AT STONY BROOK - DEPARTMENT OF ANESTHESIOLOGY
STONY BROOK, NY 11794

Suffolk County (631) 444-2968

CHABIDOU SAMPAIN FNP

Psychiatry & Neurology (Geriatric Psychiatry)