Josephine Casillan, FNP-C
NPI 1023992740 · Primary Care Nurse Practitioner · Yonkers, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Josephine Casillan, FNP-C is a Primary Care Nurse Practitioner provider in Yonkers, NY (NPI 1023992740).
Provider details
- NPI number
- 1023992740
- Entity type
- Individual
- Primary specialty
- Primary Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- F357219 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
100% 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
- 2025-08-05
- Last updated
- 2025-08-05
- Certified
- 2025-08-05
Frequently asked questions
- What is Josephine Casillan's NPI number?
- Josephine Casillan's National Provider Identifier (NPI) is 1023992740, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Josephine Casillan's specialty?
- Josephine Casillan is listed in the NPPES registry with a primary specialty of Primary Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Josephine Casillan located?
- Josephine Casillan's practice location on file with NPPES is 19 Winchester Ave Apt 2a, Yonkers, NY 10710-5822.
- What is Josephine Casillan's phone number?
- The practice phone number listed in the NPPES registry for Josephine Casillan is (914) 426-1012.
- Does Josephine Casillan accept Medicare?
- Josephine Casillan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Josephine Casillan's NPI active?
- Yes — Josephine Casillan's NPI (1023992740) is active in the NPPES registry as of the last update on 2025-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.