1. Home
  2. Directory
  3. Virginia
  4. Dulles
  5. Nurse Practitioner
  6. NPI Profile

MORGAN MADDOX FNP-C
NPI 1275297780
Nurse Practitioner - Family in Dulles, VA

Active since October 30, 2021PECOS EnrolledAccepts Medicare Assignment
24430 STONE SPRINGS BLVD STE 425, DULLES, VA 20166(703) 722-5860(703) 722-5861 Get Directions Write a Review

NPPES record last updated: January 10, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 10, 2023, Dec 19, 2022, Nov 10, 2022 (3 updates tracked since 2022).

About Morgan Maddox Fnp-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MORGAN MADDOX FNP-C (NPI 1275297780) is an individual family provider in Dulles, Virginia, licensed in Virginia (0024182448) and active in the NPI registry since October 2021. She is enrolled in Medicare PECOS, is affiliated with Winchester Medical Center, and maintains a secondary practice location in Purcellville.

NPPES Registry Identity

NPI1275297780
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMORGAN MADDOXCredential: FNP-C
Location Address24430 STONE SPRINGS BLVD STE 425Dulles, VA 20166-2271
Mailing Address2901 Telestar Ct Ste 300Falls Church, VA 22042-1263 · (703) 591-1688 · Fax (703) 591-1445
Phone(703) 722-5860
Fax(703) 722-5861
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateOctober 30, 2021
Last NPPES UpdateJanuary 10, 20233 updates tracked since enumeration
NPPES CertifiedJanuary 10, 2023
✔ NPI 1275297780 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in VA · 0024182448
24430 STONE SPRINGS BLVD STE 425, Dulles, VA 20166
Open in Google Maps ↗

Secondary Practice Location 1

Location 1120B N Maple AvePurcellville, VA 20132-3180 · Phone (703) 723-8664 · Fax (703) 226-5696

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.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

Morgan Maddox Fnp-c 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.

PECOS PAC ID4880084029
PECOS Enrollment IDI20211202001904
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Morgan Maddox reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Inova Health Care Services
15 mi
Urgent Care
100 MAPLE AVE E
Vienna, VA 22180
  • Reassigned Medicare billing, Virginia and District of Columbia enrollments
  • Also billed through NPI 1669511051 (District of Columbia)
  • 2,379 clinicians in this Medicare group
NPI 1275886418 (703) 938-5300
Privia Medical Group, LLC
23 mi
Internal Medicine
950 N GLEBE RD STE 700
Arlington, VA 22203
  • Reassigned Medicare billing, Virginia enrollment
  • 1,315 clinicians in this Medicare group
NPI 1013042480 (571) 366-8850

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 2

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
78 services78 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
62 services62 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Winchester Medical Center

Acute Care Hospitals · Winchester, VA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490005
Location1840 Amherst StWinchester, VA 22601 · Winchester City County
Emergency services Birthing friendly

Inova Loudoun Hospital

Acute Care Hospitals · Leesburg, VA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490043
Location44045 Riverside ParkwayLeesburg, VA 20176 · Loudoun County
Emergency services Birthing friendly

Inova Fairfax Hospital

Acute Care Hospitals · Falls Church, VA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490063
Location3300 Gallows RoadFalls Church, VA 22042 · Fairfax County
Emergency services Birthing friendly

Uva Health Haymarket Medical Center

Acute Care Hospitals · Haymarket, VA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490144
Location15225 Healthcote BoulevardHaymarket, VA 20169 · Prince William County
Emergency services

Stonesprings Hospital Center

Acute Care Hospitals · Dulles, VA
OwnershipProprietary
CMS Certification Number490145
Location24440 Stone Springs BoulevardDulles, VA 20166 · Loudoun County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20166 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$86.88 typical visit price
range $56.19 – $170.30
Typical copayment $21.72 (range $14.04 – $42.57)
Most-billed visit code 99203
Established Patient
$99.13 typical visit price
range $18.07 – $138.91
Typical copayment $24.78 (range $4.51 – $34.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LAYLAN SHALI MD
Internal Medicine (Cardiovascular Disease)
24430 STONE SPRINGS BLVD STE 425
DULLES, VA 20166
Loudoun County (703) 722-5860

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 Morgan Maddox's NPI number?

The NPI number for Morgan Maddox is 1275297780. It was assigned to this individual provider in the NPPES registry on October 30, 2021.

Where is Morgan Maddox located?

Morgan Maddox practices at 24430 Stone Springs Blvd Ste 425, Dulles, VA 20166. The listed phone number is (703) 722-5860.

What is Morgan Maddox's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Morgan Maddox enrolled in Medicare?

Yes. Morgan Maddox 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 organizations bill Medicare for Morgan Maddox's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Morgan Maddox reassigns Medicare benefits to 2 organizations: Inova Health Care Services (Vienna, VA) and Privia Medical Group, LLC (Arlington, VA). Each 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 Morgan Maddox's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Morgan Maddox accept?

Health plans from Oscar Health list Morgan Maddox 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 Morgan Maddox affiliated with any hospitals?

According to CMS data, Morgan Maddox is affiliated with Winchester Medical Center, Inova Loudoun Hospital, Inova Fairfax Hospital, Uva Health Haymarket Medical Center and Stonesprings Hospital Center.

When was this NPI record last updated?

The NPPES record for Morgan Maddox was last updated on January 10, 2023. 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.