MARCIA D WILLIAMS-HAILEY NP
NPI 1831288547
Nurse Practitioner - Psychiatric/Mental Health in Valley Stream, NY
About Marcia D Williams-hailey Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARCIA D WILLIAMS-HAILEY NP (NPI 1831288547) is an individual psychiatric/mental health provider in Valley Stream, New York, licensed in New York (F401104-1) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Brooklyn, and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Marcia D Williams-hailey Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Marcia Williams-hailey reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
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 11580 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
VALLEY STREAM, NY 11580
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 Marcia Williams-hailey's NPI number?
The NPI number for Marcia Williams-hailey is 1831288547. It was assigned to this individual provider in the NPPES registry on October 12, 2006.
Where is Marcia Williams-hailey located?
Marcia Williams-hailey practices at 900 Franklin Ave, Valley Stream, NY 11580. The listed phone number is (516) 256-6025.
What is Marcia Williams-hailey's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Marcia Williams-hailey enrolled in Medicare?
Yes. Marcia Williams-hailey is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Marcia Williams-hailey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marcia Williams-hailey reassigns Medicare benefits to North Shore - Lij Medical PC (New Hyde Park, NY). The 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 Marcia Williams-hailey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Marcia Williams-hailey was last updated on April 16, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.
# Marcia D Williams-Hailey, NP · NPI 1831288547
Psychiatric/Mental Health physician in Valley Stream, New York. Individual provider, active in the CMS NPPES registry since October 12, 2006.
## Identity
- **NPI:** 1831288547 (Entity type: Individual)
- **Enumerated:** October 12, 2006
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** F401104-1 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 900 FRANKLIN AVE, Valley Stream, NY 11580-2145
- **Phone:** (516) 256-6025
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** North Shore - Lij Medical PC (NPI 1790043479, New Hyde Park, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** April 16, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1831288547) · Data from the CMS NPPES public registry.