Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mrs. Jan S Williams, ACNP, APRN, BC

Individual provider Nurse Practitioner · NPI 1548320492

Mrs. Jan S Williams, ACNP, APRN, BC is a Nurse Practitioner in Manassas, Virginia. Graduated from Georgetown University School of Medicine in 2005, 21 years ago. Practices with Uva Community Health Medical Group LLC, a 342-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in North Carolina.

Years since qualifying
21
Trained at
Georgetown University School of Medicine
Licensed in
NC
In the registry since
2006
What do these letters mean?
ACNP — Acute Care Nurse Practitioner
A nurse practitioner who treats acutely ill patients, usually in hospital.
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
BC — Board Certified
Appended to another credential to show current board certification, as in APRN-BC.

See every abbreviation used in this directory →

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Practice location Address checks out

8640 Sudley Rd Ste 302
Manassas, VA 20110-4404
Phone: (703) 369-5959
Fax: (703) 369-7473
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 8700 Sudley Rd, Manassas, VA 20110-4418 — (703) 926-0909

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 0024166796 (NC)

Record details

NPI number1548320492
Entity typeIndividual (Type 1)
GenderFemale
Credentials ACNP , APRN , BC
Sole proprietorNo
NPI enumeratedDecember 11, 2006
Last updated in NPPESFebruary 18, 2025
Certification dateFebruary 18, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Uva Community Health Medical Group Llc — 342 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients44
Services billed 47 a service is one billed item, such as a visit, a test or a procedure
Average patient age81

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $137 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Uva Community Health Medical Group LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 342 clinicians in the practice; 12 are shown here.

Other providers in Manassas