NPPES file of Aug 9, 2026

Josephine Casillan-Leblanc, FNP-C

Primary Care Nurse Practitioner · Yonkers, NY

Josephine Casillan-Leblanc, FNP-C is a primary care nurse practitioner with a practice address in Yonkers, New York, and NPI 1023992740, issued on Aug 5, 2025. Check the license (New York F357219, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1023992740
Name
Josephine Casillan-Leblanc
Credential
FNP-C
Primary taxonomy
Primary Care Nurse Practitioner 363LP2300X
License number
F357219 NY
Self-reported in NPPES; status is on the state search
Practice location
19 Winchester Ave Apt 2A, Yonkers, NY 10710
Phone
(914) 426-1012
Enumerated
Aug 5, 2025
Record last updated
Jun 10, 2026
Medicare enrollment
Enrolled (PECOS I20260310000548); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Josephine Casillan-Leblanc in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license F357219
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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Josephine Casillan-Leblanc among 462 primary care nurse practitioner records in New York

Josephine Casillan-Leblanc, FNP-C is one of 462 primary care nurse practitioner records with a practice address in New York. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2025, is newer than 81% of them.

  • NPI issued2025 · 81% of these records are older, 9% newer
  • In a Medicare fileNo · 57% of these records are
  • In the CMS Doctors and Clinicians fileYes · 39% of these records are
  • Graduated2024 · median 2020 among the 179 with a school on file
  • Record last updated2026 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP2300X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Primary Care Nurse Practitioner providers in New York

There are 462 primary care nurse practitioner records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 primary care nurse practitioner records with the nearest ZIP codes

  1. Malvika Singh, DNPTuckahoe, NY 107071215800941
  2. Patience Oparaji, NPNew Rochelle, NY 108011366938987
  3. Frantzcesca McDonaldWhite Plains, NY 106071730047671
  4. Deena GurbaniWhite Plains, NY 106041649948506
  5. Kimberly Hall-Gentile, NPWhite Plains, NY 106041548582018
  6. Claudette NelsonWhite Plains, NY 106011457911059
  7. Karen Duzy, ARNPValhalla, NY 105951447203815
  8. Ashley Pitt, FNPValhalla, NY 105951821717307

Common questions

What is Josephine Casillan-Leblanc, FNP-C's NPI number?

Josephine Casillan-Leblanc, FNP-C's National Provider Identifier (NPI) is 1023992740, issued on Aug 5, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Josephine Casillan-Leblanc, FNP-C located?

The NPPES record lists a practice address at 19 Winchester Ave Apt 2A, Yonkers, NY, 10710. Phone: (914) 426-1012. Providers update this record themselves, so call before visiting.

How can I verify Josephine Casillan-Leblanc, FNP-C's license?

NPPES lists New York license number F357219, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.