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MRS. ILONA KERTESZ MOSTEL NP
NPI 1497789218
Nurse Practitioner - Obstetrics & Gynecology in New Hyde Park, NY

Active since July 10, 2006PECOS EnrolledAccepts Medicare Assignment
270-05 76TH AVENUE,, LONG ISLAND JEWISH MEDICAL CENTER, DEPT OF OB/GYN, NEW HYDE PARK, NY 11040(718) 470-7700 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mrs. Ilona Kertesz Mostel Np NPPES

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

MRS. ILONA KERTESZ MOSTEL NP (NPI 1497789218) is an individual obstetrics & gynecology provider in New Hyde Park, New York, licensed in New York (360434) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1995).

NPPES Registry Identity

NPI1497789218
Entity TypeIndividualFemale
Primary Taxonomy363LX0001X
Provider Legal NameMRS. ILONA KERTESZ MOSTELCredential: NP
Location Address270-05 76TH AVENUE,, LONG ISLAND JEWISH MEDICAL CENTER, DEPT OF OB/GYNNew Hyde Park, NY 11040
Mailing Address270-05 76th Avenue,, Long Island Jewish Medical Center, Dept Of Ob/gynNew Hyde Park, NY 11040 · (718) 470-7700
Phone(718) 470-7700
Sole ProprietorYes
Medical School CMSOtherGraduated 1995
Enumeration DateJuly 10, 2006
Last NPPES UpdateMarch 7, 2023
NPPES CertifiedMarch 7, 2023
✔ NPI 1497789218 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Obstetrics & GynecologyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LX0001X
License✔ Licensed in NY · 360434
Also ListedAdvanced Practice MidwifeTaxonomy 367A00000X · License F000495 (NY)
270-05 76TH AVENUE,, New Hyde Park, NY 11040
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Other Identifiers 1

Medicaid290F000495NY

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

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. Ilona Kertesz Mostel Np 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 ID7416141353
PECOS Enrollment IDI20250611002788
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 Ilona Mostel reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

North Shore - Lij Medical PC
0.3 mi
Internal Medicine
270-05 76TH AVE
New Hyde Park, NY 11040
  • Reassigned Medicare billing, New York enrollment
  • 9,353 clinicians in this Medicare group
NPI 1790043479 (516) 465-8089

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 11040 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.

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 Ilona Mostel's NPI number?

The NPI number for Ilona Mostel is 1497789218. It was assigned to this individual provider in the NPPES registry on July 10, 2006.

Where is Ilona Mostel located?

Ilona Mostel practices at 270-05 76th Avenue, Long Island Jewish Medical Center, Dept Of Ob/Gyn, New Hyde Park, NY 11040. The listed phone number is (718) 470-7700.

What is Ilona Mostel's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Obstetrics & Gynecology, with taxonomy code 363LX0001X.

Is Ilona Mostel enrolled in Medicare?

Yes. Ilona Mostel 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 Ilona Mostel's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ilona Mostel reassigns Medicare benefits to North Shore - Lij Medical PC (New Hyde Park, 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 Ilona Mostel'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 Ilona Mostel was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.