Marilyn Mostowy, MD
NPI 1942941034 · Pediatrics Physician · New Hyde Park, NY
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marilyn Mostowy, MD is a Pediatrics Physician provider in New Hyde Park, NY (NPI 1942941034).
Provider details
- NPI number
- 1942941034
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-04-05
- Last updated
- 2025-08-25
- Certified
- 2025-08-25
Frequently asked questions
- What is Marilyn Mostowy's NPI number?
- Marilyn Mostowy's National Provider Identifier (NPI) is 1942941034, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilyn Mostowy's specialty?
- Marilyn Mostowy is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Marilyn Mostowy located?
- Marilyn Mostowy's practice location on file with NPPES is 26901 76th Ave, New Hyde Park, NY 11040-1433.
- What is Marilyn Mostowy's phone number?
- The practice phone number listed in the NPPES registry for Marilyn Mostowy is (718) 470-3206.
- Does Marilyn Mostowy accept Medicare?
- Marilyn Mostowy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marilyn Mostowy's NPI active?
- Yes — Marilyn Mostowy's NPI (1942941034) is active in the NPPES registry as of the last update on 2025-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.