JENNIFER SWAN ONEILL NP
NPI 1326147703
Nurse Practitioner - Family in Riverhead, NY
About Jennifer Swan Oneill Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JENNIFER SWAN ONEILL NP (NPI 1326147703) is an individual family provider in Riverhead, New York, licensed in New York (F333489) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Jennifer Swan Oneill Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Jennifer Oneill reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mattituck, NY 11952
- Reassigned Medicare billing, New York enrollment
- 70 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 11901 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.
RIVERHEAD, NY 11901
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 Jennifer Oneill's NPI number?
The NPI number for Jennifer Oneill is 1326147703. It was assigned to this individual provider in the NPPES registry on September 21, 2006.
Where is Jennifer Oneill located?
Jennifer Oneill practices at 1300 Roanoke Ave C/O Peconic Bay Medical Center, Riverhead, NY 11901. The listed phone number is (631) 548-6920.
What is Jennifer Oneill's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Jennifer Oneill enrolled in Medicare?
Yes. Jennifer Oneill is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Jennifer Oneill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Oneill reassigns Medicare benefits to Peconic Bay Primary Medical Care (Mattituck, 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 Jennifer Oneill'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 Jennifer Oneill was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Jennifer Swan Oneill, NP · NPI 1326147703
Family physician in Riverhead, New York. Individual provider, active in the CMS NPPES registry since September 21, 2006.
## Identity
- **NPI:** 1326147703 (Entity type: Individual)
- **Enumerated:** September 21, 2006
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** F333489 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1300 ROANOKE AVE, C/O PECONIC BAY MEDICAL CENTER, Riverhead, NY 11901-2031
- **Phone:** (631) 548-6920
## 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:** Peconic Bay Primary Medical Care (NPI 1487620613, Mattituck, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 8, 2007
---
Source: [NPI Profile](https://npiprofile.com/npi/1326147703) · Data from the CMS NPPES public registry.