P WILLIAM PSYCHIATRIC NURSE PRACTITIONER SERVICES PLLC
NPI 1932721859
Nurse Practitioner - Psychiatric/Mental Health in Pearl River, NY
About P William Psychiatric Nurse Practitioner Services Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
P WILLIAM PSYCHIATRIC NURSE PRACTITIONER SERVICES PLLC (NPI 1932721859) is a healthcare organization registered as a psychiatric/mental health in Pearl River, New York and active in the NPI registry since May 2020. The organization maintains 3 additional practice locations and lists Phebee William, Administrator, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
P William Psychiatric Nurse Practitioner Services Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to P William Psychiatric Nurse Practitioner Services PLLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
San Bernardino, CA 92408
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 P William Psychiatric Nurse Practitioner Services PLLC's NPI number?
The NPI number for P William Psychiatric Nurse Practitioner Services PLLC is 1932721859. It was assigned to this organization in the NPPES registry on May 13, 2020.
Where is P William Psychiatric Nurse Practitioner Services PLLC located?
P William Psychiatric Nurse Practitioner Services PLLC is located at 1 Blue Hill Plz Lbby Level, Pearl River, NY 10965. The listed phone number is (888) 516-0397.
What is P William Psychiatric Nurse Practitioner Services PLLC's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is P William Psychiatric Nurse Practitioner Services PLLC enrolled in Medicare?
Yes. P William Psychiatric Nurse Practitioner Services PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through P William Psychiatric Nurse Practitioner Services PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Nurse Practitioner) reassigns their Medicare billing to P William Psychiatric Nurse Practitioner Services PLLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does P William Psychiatric Nurse Practitioner Services PLLC accept?
Health plans from Blue Cross and Blue Shield of Texas list P William Psychiatric Nurse Practitioner Services PLLC 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 P William Psychiatric Nurse Practitioner Services PLLC was last updated on May 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# P William Psychiatric Nurse Practitioner Services Pllc · NPI 1932721859
Psychiatric/Mental Health organization in Pearl River, New York. Organization record, active in the CMS NPPES registry since May 13, 2020.
## Identity
- **NPI:** 1932721859 (Entity type: Organization)
- **Enumerated:** May 13, 2020
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **Organization subpart:** No
- **Authorized official:** Phebee William, ADMINISTRATOR
## Practice location
- **Address:** 1 BLUE HILL PLZ LBBY LEVEL, Pearl River, NY 10965-3111
- **Phone:** (888) 516-0397
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Nurse Practitioner) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1932721859) · Data from the CMS NPPES public registry.