MRS. JAN S WILLIAMS ACNP, APRN, BC
NPI 1548320492
Nurse Practitioner in Manassas, VA
About Mrs. Jan S Williams Acnp, Aprn, Bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. JAN S WILLIAMS ACNP, APRN, BC (NPI 1548320492) is an individual nurse practitioner in Manassas, Virginia, licensed in North Carolina (0024166796) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS, is affiliated with Novant Prince William Medical Center, and maintains a secondary practice location in Manassas.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
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
Mrs. Jan S Williams Acnp, Aprn, Bc 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 Jan Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Manassas, VA 20110
- Reassigned Medicare billing, Virginia enrollment
- 584 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.
Novant Prince William Medical Center
Acute Care Hospitals · Manassas, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20110 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.
Reported Quality Measures
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MANASSAS, VA 20110
MANASSAS, VA 20110
MANASSAS, VA 20110
MANASSAS, VA 20110
MANASSAS, VA 20110
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 Jan Williams's NPI number?
The NPI number for Jan Williams is 1548320492. It was assigned to this individual provider in the NPPES registry on December 11, 2006.
Where is Jan Williams located?
Jan Williams practices at 8640 Sudley Rd Ste 302, Manassas, VA 20110. The listed phone number is (703) 369-5959.
What is Jan Williams's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Jan Williams enrolled in Medicare?
Yes. Jan 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 organization bills Medicare for Jan Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jan Williams reassigns Medicare benefits to Uva Community Health Medical Group, LLC (Manassas, 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 Jan Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jan Williams accept?
Health plans from Oscar Health list Jan Williams 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.
Is Jan Williams affiliated with any hospitals?
According to CMS data, Jan Williams is affiliated with Novant Prince William Medical Center.
When was this NPI record last updated?
The NPPES record for Jan Williams was last updated on February 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.