MS. ANTOINETTE MASE NP
NPI 1851952212
Nurse Practitioner - Psychiatric/Mental Health in Hempstead, NY
About Ms. Antoinette Mase Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. ANTOINETTE MASE NP (NPI 1851952212) is an individual psychiatric/mental health provider in Hempstead, New York, licensed in New York (F345004-01) and active in the NPI registry since June 2019. She is enrolled in Medicare PECOS and maintains a secondary practice location in New Hyde Park.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ms. Antoinette Mase Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Antoinette Mase reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hempstead, NY 11550
- Reassigned Medicare billing, New York enrollment
- 10 clinicians in this Medicare group
Franklin Square, NY 11010
- Reassigned Medicare billing, New York enrollment
- 45 clinicians in this Medicare group
New Hyde Park, NY 11040
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
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 11550 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HEMPSTEAD, NY 11550
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 Antoinette Mase's NPI number?
The NPI number for Antoinette Mase is 1851952212. It was assigned to this individual provider in the NPPES registry on June 26, 2019. The provider is also known as Antoinette Pinto.
Where is Antoinette Mase located?
Antoinette Mase practices at 230 Hilton Ave Ste 103, Hempstead, NY 11550. The listed phone number is (516) 464-0266.
What is Antoinette Mase's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Antoinette Mase enrolled in Medicare?
Yes. Antoinette Mase is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Antoinette Mase's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Antoinette Mase reassigns Medicare benefits to 3 organizations: Timely Psychiatry And Family Health Np Practice (Hempstead, NY), Lagrangeville Medical PC (Franklin Square, NY) and North Shore - Lij Medical PC (New Hyde Park, NY). Each 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 Antoinette Mase's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Antoinette Mase accept?
Health plans from Oscar Health list Antoinette Mase as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Antoinette Mase was last updated on June 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Ms. Antoinette Mase, NP · NPI 1851952212
Psychiatric/Mental Health physician in Hempstead, New York. Individual provider, active in the CMS NPPES registry since June 26, 2019.
## Identity
- **NPI:** 1851952212 (Entity type: Individual)
- **Enumerated:** June 26, 2019
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** F345004-01 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 230 HILTON AVE STE 103, Hempstead, NY 11550-8116
- **Phone:** (516) 464-0266
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Timely Psychiatry And Family Health Np Practice (NPI 1659090603, Hempstead, NY); Lagrangeville Medical PC (NPI 1861153322, Franklin Square, NY); North Shore - Lij Medical PC (NPI 1790043479, New Hyde Park, NY) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 10, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1851952212) · Data from the CMS NPPES public registry.