Active NPI 1548320492 Individual Practitioner Female Practitioner

Jan S Williams , ACNP, APRN, BC

Nurse Practitioner • Manassas, VA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Jan Williams, ACNP, APRN, BC is a certified Nurse Practitioner practicing in Manassas, VA. With approximately 21 years of clinical experience since graduating from Georgetown University School Of Medicine in 2005, Jan Williams delivers high-quality medical care to the local community at 8640 SUDLEY RD STE 302.

Jan Williams is affiliated with Uva Community Health Medical Group Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician, initial hospital care with moderate level of medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

8640 Sudley Rd Ste 302

Manassas, VA 201104404

Telephone 7033695959

Fax 7033697473

Associated Practice Facility / Clinic

🏢 Prince William Cardiology Associates Facility NPI 1578624102

Medicare Profile & Education

Medical School

Georgetown University School Of Medicine

Graduation Year

2005

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Nurse Practitioner in Manassas, VA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

21 Yrs +10.1 yrs vs City Avg

City Avg: 10.9 Yrs

State Avg: 11.1 Yrs

Regional Practice Density

37 Specialists

Practicing in Manassas, VA (1750 Statewide)

Telehealth Adoption Rate

10.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

57.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Williams (21 Years) 21 Yrs

Manassas Specialty Average (10.9 Years) 10.9 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	26	25	$236.00	$99.67

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	33	27	$165.00	$66.68

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93015 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician	37	37	$272.00	$53.49

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	28	16	$165.00	$61.41
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	11	11	$459.00	$171.10

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J2785 Injection, regadenoson, 0.1 mg	42	11	$53.34	$50.75
93000 Routine ekg using at least 12 leads including interpretation and report	27	26	$65.00	$14.34
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	23	21	$233.00	$88.53
99213 Established patient office or other outpatient visit, typically 15 minutes	20	20	$158.00	$62.57
93015 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician	16	16	$272.00	$51.19

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	48	46	$233.00	$90.65
93000 Routine ekg using at least 12 leads including interpretation and report	41	40	$65.00	$14.19
99213 Established patient office or other outpatient visit, typically 15 minutes	37	37	$158.00	$61.40
93015 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician	34	34	$272.00	$52.12

Medical Specialties & State Licenses

CMS Verified: 2025-02-18

Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

State License NC 0024166796

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Hospital & Practice Group Affiliations

Uva Community Health Medical Group Llc

8640 Sudley Rd, Manassas, VA 201104404

Phone: 7033695959

Secondary Practice Locations

8700 Sudley Rd, Prince William Hospital

Manassas, VA 201104418

Phone: 7039260909

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

14 Associated Practitioners

Bhumi Amin

Nurse Practitioner - Family

NPI 1043040710

David Demaria

Internal Medicine - Cardiovascular Disease

NPI 1043553852

Dr. Solomon Bagae , MD

Internal Medicine - Cardiovascular Disease

NPI 1104842061

Doctor of Medicine (M.D.)

Kristy Diffley , NURSE PRACTITIONER

Nurse Practitioner - Family

NPI 1154828150

NURSEPRACTITIONER

Dr. Raza Yunus , MD

Internal Medicine - Cardiovascular Disease

NPI 1225475973

Doctor of Medicine (M.D.)

Sarah Duncan , RN, CCRN

Nurse Practitioner - Acute Care

NPI 1306134218

Registered Nurse, CCRN

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

11 Historical Events

📍

Updated Business Mailing Address February 18, 2025

Registered at PO BOX 748613, ATLANTA, GA 303848613

👤

Provider Name / Credentials Updated February 18, 2025

Recorded as JAN WILLIAMS, ACNP, APRN, BC

📍

Updated Practice Location February 26, 2018

Registered at 8640 SUDLEY RD STE 302, MANASSAS, VA 201104404 (Tel: 7033695959)

📍

Updated Business Mailing Address February 26, 2018

Registered at PO BOX 60447, CHARLOTTE, NC 282600447 (Tel: 7033695959)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 26, 2018

Nurse Practitioner (License #0024166796 in NC)

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 8700 SUDLEY RD, PRINCE WILLIAM HOSPITAL, MANASSAS, VA 201104418 (Tel: 7039260909)

📍

Updated Business Mailing Address July 08, 2007

Registered at 54 BERTRAM BLVD, STAFFORD, VA 225566464 (Tel: 5406595267)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as JAN GRIFFIN, ACNP, APRN, BC

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Nurse Practitioner (License #24166796 in VA)

🟢

Initial NPI Registration & Enumeration December 11, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1548320492

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: December 11, 2006

Last Update: February 18, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 748613

Atlanta, GA 303848613

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.