BARBARA LYNNE O'NEILL NURSE PRACTITIONER
NPI 1184241994
Nurse Practitioner - Family in Fredericksburg, VA
About Barbara Lynne O'neill Nurse Practitioner NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BARBARA LYNNE O'NEILL NURSE PRACTITIONER (NPI 1184241994) is an individual family provider in Fredericksburg, Virginia, licensed in Virginia (0024179580) and active in the NPI registry since June 2020. She is enrolled in Medicare PECOS, is affiliated with Mary Washington Hospital, and is a graduate of Other (2020).
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 and accepts Medicare assignment
Barbara Lynne O'neill Nurse Practitioner 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 Barbara O'neill reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fredericksburg, VA 22408
- Reassigned Medicare billing, Virginia enrollment
- 24 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mary Washington Hospital
Acute Care Hospitals · Fredericksburg, VAStafford Hospital, LLC
Acute Care Hospitals · Stafford, VASpotsylvania Regional Medical Center
Acute Care Hospitals · Fredericksburg, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 22408 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.
FREDERICKSBURG, VA 22408
FREDERICKSBURG, VA 22408
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 Barbara O'neill's NPI number?
The NPI number for Barbara O'neill is 1184241994. It was assigned to this individual provider in the NPPES registry on June 26, 2020.
Where is Barbara O'neill located?
Barbara O'neill practices at 9530 Cosner Dr Ste 200, Fredericksburg, VA 22408. The listed phone number is (540) 373-1331.
What is Barbara O'neill's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Barbara O'neill enrolled in Medicare?
Yes. Barbara O'neill 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 Barbara O'neill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Barbara O'neill reassigns Medicare benefits to Cardiology Associates Of Fredericksburg, Ltd. (Fredericksburg, VA). 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 Barbara O'neill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Barbara O'neill affiliated with any hospitals?
According to CMS data, Barbara O'neill is affiliated with Mary Washington Hospital, Stafford Hospital, LLC and Spotsylvania Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Barbara O'neill was last updated on December 19, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Barbara Lynne O'neill, NURSE PRACTITIONER · NPI 1184241994
Family physician in Fredericksburg, Virginia. Individual provider, active in the CMS NPPES registry since June 26, 2020.
## Identity
- **NPI:** 1184241994 (Entity type: Individual)
- **Enumerated:** June 26, 2020
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 0024179580 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 9530 COSNER DR STE 200, Fredericksburg, VA 22408-7760
- **Phone:** (540) 373-1331 · **Fax:** (540) 373-1124
## 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:** Cardiology Associates Of Fredericksburg, Ltd. (NPI 1487748240, Fredericksburg, VA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** December 19, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1184241994) · Data from the CMS NPPES public registry.