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DR. MARILYN ROSE MOSTOWY MD
NPI 1942941034
Pediatrics in New Hyde Park, NY

Active since April 05, 2022PECOS Enrolled
26901 76TH AVE, NEW HYDE PARK, NY 11040(718) 470-3206 Get Directions Write a Review

NPPES record last updated: August 25, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Marilyn Rose Mostowy Md NPPES

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

DR. MARILYN ROSE MOSTOWY MD (NPI 1942941034) is an individual pediatrics provider in New Hyde Park, New York, licensed in New York (339351) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1942941034
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. MARILYN ROSE MOSTOWYCredential: MD
Location Address26901 76TH AVENew Hyde Park, NY 11040-1433
Mailing Address26901 76th AveNew Hyde Park, NY 11040-1433 · (718) 470-3206
Phone(718) 470-3206
Sole ProprietorNo
Enumeration DateApril 5, 2022
Last NPPES UpdateAugust 25, 2025
NPPES CertifiedAugust 25, 2025
✔ NPI 1942941034 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in NY · 339351
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
26901 76TH AVE, New Hyde Park, NY 11040
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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)

Dr. Marilyn Rose Mostowy Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Marilyn Mostowy 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.

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.

DR. MOHAMMAD ALAM PHARMD, MBA, BCPS
Pharmacist
26901 76TH AVE
NEW HYDE PARK, NY 11040
Nassau County (516) 724-2809
CHRIS TEMPESTA
Student in an Organized Health Care Education/Training Program
26901 76TH AVE
NEW HYDE PARK, NY 11040
Nassau County (718) 470-3000
ALPNA AGGARWAL D.O.
Pediatrics
26901 76TH AVE
NEW HYDE PARK, NY 11040
Nassau County (718) 470-3204
MRS. PRISCILLA RAHMER NP
Nurse Practitioner (Family)
26901 76TH AVE
NEW HYDE PARK, NY 11040
Nassau County (718) 470-3460
CAROLINE SHANK
Student in an Organized Health Care Education/Training Program
26901 76TH AVE
NEW HYDE PARK, NY 11040
Nassau County (718) 270-3206
BROOKE D. VERGALES M.D.
Pediatrics (Neonatal-Perinatal Medicine)
26901 76TH AVE
NEW HYDE PARK, NY 11040
Nassau County (434) 284-0420
ALISON CIVALE NP
Nurse Practitioner (Neonatal)
26901 76TH AVE, SUITE 344
NEW HYDE PARK, NY 11040
Nassau County (718) 470-3380
BENJAMIN MARSH M.D.
Anesthesiology
26901 76TH AVE
NEW HYDE PARK, NY 11040
Nassau County (718) 470-3000

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 Marilyn Mostowy's NPI number?

The NPI number for Marilyn Mostowy is 1942941034. It was assigned to this individual provider in the NPPES registry on April 5, 2022.

Where is Marilyn Mostowy located?

Marilyn Mostowy practices at 26901 76th Ave, New Hyde Park, NY 11040. The listed phone number is (718) 470-3206.

What is Marilyn Mostowy's specialty?

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

Is Marilyn Mostowy enrolled in Medicare?

Yes. Marilyn Mostowy is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Marilyn Mostowy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marilyn Mostowy 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 Marilyn Mostowy'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 Marilyn Mostowy was last updated on August 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.