ALEXA MARKS NP
NPI 1891250668
Nurse Practitioner - Family in Ashburn, VA

Active since February 06, 2019PECOS EnrolledAccepts Medicare Assignment
44679 ENDICOTT DR STE 300, ASHBURN, VA 20147(804) 596-6021 Get Directions Write a Review

NPPES record last updated: April 24, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 24, 2024, Jul 15, 2020, May 20, 2020 and 1 more (4 updates tracked since 2019).

About Alexa Marks Np NPPES

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

ALEXA MARKS NP (NPI 1891250668) is an individual family provider in Ashburn, Virginia, licensed in Virginia (0024177232) and active in the NPI registry since February 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1891250668
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameALEXA MARKSCredential: NP
Location Address44679 ENDICOTT DR STE 300Ashburn, VA 20147-5567
Mailing Address44819 Atwater Dr # E731Ashburn, VA 20147-5728 · (202) 255-6799
Sole ProprietorYes
Medical School CMSOtherGraduated 2018
Enumeration DateFebruary 6, 2019
Last NPPES UpdateApril 24, 20244 updates tracked since enumeration
NPPES CertifiedApril 20, 2024
✔ NPI 1891250668 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
Licenses✔ Licensed in VA · 0024177232✔ Licensed in DC · RN1037654✔ Licensed in WA · AP61076883✔ Licensed in MD · AC003123✔ Licensed in FL · TPAN395✔ Licensed in AZ · 240885
44679 ENDICOTT DR STE 300, Ashburn, VA 20147

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

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

Alexa Marks Np 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 ID5496096158
PECOS Enrollment IDI20260616001898
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

4

Medicare enrollment records show Alexa Marks reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Internal Medicine
950 N GLEBE RD STE 700
Arlington, VA 22203
  • Reassigned Medicare billing, Virginia enrollment
  • 1,315 clinicians in this Medicare group
General Practice
4055 VALLEY VIEW LN STE 700
Dallas, TX 75244
  • Reassigned Medicare billing, Arizona and Virginia enrollments
  • 556 clinicians in this Medicare group
General Practice
4055 VALLEY VIEW LN STE 700
Dallas, TX 75244
  • Reassigned Medicare billing, District of Columbia and West Virginia enrollments
  • 75 clinicians in this Medicare group
Critical Access
170 FORD RD
John Day, OR 97845
  • Reassigned Medicare billing, Oregon enrollment
  • 66 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20147 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 3

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

Dietitian, Registered
44679 ENDICOTT DR STE 300
ASHBURN, VA 20147
Social Worker
44679 ENDICOTT DR STE 300
ASHBURN, VA 20147
Counselor (Mental Health)
44679 ENDICOTT DR STE 300
ASHBURN, VA 20147

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 Alexa Marks's NPI number?

The NPI number for Alexa Marks is 1891250668. It was assigned to this individual provider in the NPPES registry on February 6, 2019.

Where is Alexa Marks located?

Alexa Marks practices at 44679 Endicott Dr Ste 300, Ashburn, VA 20147. The listed phone number is (804) 596-6021.

What is Alexa Marks's specialty?

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

Is Alexa Marks enrolled in Medicare?

Yes. Alexa Marks 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 Alexa Marks's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexa Marks reassigns Medicare benefits to 4 organizations: Privia Medical Group, LLC (Arlington, VA), Signify Health, LLC (Dallas, TX), Signify Health Medical Associates, PLLC (Dallas, TX) and Blue Mountain Hospital District (John Day, OR). 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 Alexa Marks's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alexa Marks accept?

Health plans from CareSource, CareSource (Common Ground Healthcare) and Moda Health Plan, Inc. list Alexa Marks 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.

When was this NPI record last updated?

The NPPES record for Alexa Marks was last updated on April 24, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.