SANDY WILLIAMS APN
NPI 1427530658
Nurse Practitioner - Psychiatric/Mental Health in Somerville, NJ
About Sandy Williams Apn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SANDY WILLIAMS APN (NPI 1427530658) is an individual psychiatric/mental health provider in Somerville, New Jersey, licensed in New Jersey (26NJ01375600) and active in the NPI registry since September 2018. She is enrolled in Medicare PECOS, is affiliated with Robert Wood Johnson University Hospital - Somerset, and maintains a secondary practice location in Piscataway.
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
Sandy Williams Apn 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 Reassignments
2Medicare enrollment records show Sandy Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bound Brook, NJ 08805
- Reassigned Medicare billing, New Jersey enrollment
- 7 clinicians in this Medicare group
West Orange, NJ 07052
- Reassigned Medicare billing, New Jersey enrollment
- 757 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Robert Wood Johnson University Hospital - Somerset
Acute Care Hospitals · Somerville, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 08876 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
SOMERVILLE, NJ 08876
SOMERVILLE, NJ 08876
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 Sandy Williams's NPI number?
The NPI number for Sandy Williams is 1427530658. It was assigned to this individual provider in the NPPES registry on September 4, 2018.
Where is Sandy Williams located?
Sandy Williams practices at 110 Rehill Ave, Somerville, NJ 08876. The listed phone number is (908) 685-2200.
What is Sandy Williams's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Sandy Williams enrolled in Medicare?
Yes. Sandy Williams 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 organizations bill Medicare for Sandy Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sandy Williams reassigns Medicare benefits to 2 organizations: Family & Community Services Of Somerset County (Bound Brook, NJ) and Barnabas Health Medical Group, PC (West Orange, NJ). 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 Sandy Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Sandy Williams affiliated with any hospitals?
According to CMS data, Sandy Williams is affiliated with Robert Wood Johnson University Hospital - Somerset.
When was this NPI record last updated?
The NPPES record for Sandy Williams was last updated on May 23, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Sandy Williams, APN · NPI 1427530658
Psychiatric/Mental Health physician in Somerville, New Jersey. Individual provider, active in the CMS NPPES registry since September 4, 2018.
## Identity
- **NPI:** 1427530658 (Entity type: Individual)
- **Enumerated:** September 4, 2018
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** 26NJ01375600 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 110 REHILL AVE, Somerville, NJ 08876-8021
- **Phone:** (908) 685-2200 · **Fax:** (732) 923-2272
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Family & Community Services Of Somerset County (NPI 1154408623, Bound Brook, NJ); Barnabas Health Medical Group, PC (NPI 1447206420, West Orange, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** May 23, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1427530658) · Data from the CMS NPPES public registry.