ALEXIS SIENNA HALYARD
NPI 1144742958
Family Medicine in Manassas, VA

Q: What is Alexis Halyard's NPI number?

The NPI number for Alexis Halyard is 1144742958. It was assigned to this individual provider in the NPPES registry on July 13, 2017.

Q: What is Alexis Halyard's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Alexis Halyard was last updated on July 10, 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.

Active since July 13, 2017PECOS EnrolledAccepts Medicare Assignment

8640 SUDLEY RD STE 203, MANASSAS, VA 20110(571) 662-5885(703) 368-2498 Get Directions Write a Review

NPPES record last updated: July 10, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 10, 2024, Aug 22, 2023, Jan 20, 2023 and 1 more (4 updates tracked since 2017).

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About Alexis Sienna Halyard NPPES

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

ALEXIS SIENNA HALYARD (NPI 1144742958) is an individual family medicine provider in Manassas, Virginia, licensed in Virginia (0101279272) and active in the NPI registry since July 2017. She is enrolled in Medicare PECOS, is affiliated with Novant Prince William Medical Center, and is a graduate of Emory University School Of Medicine (2020).

NPPES Registry Identity

NPI1144742958

Entity TypeIndividualFemale

Primary Taxonomy207Q00000X

Provider Legal NameALEXIS SIENNA HALYARD

Location Address8640 SUDLEY RD STE 203Manassas, VA 20110-4404

Mailing Address8640 Sudley Rd Ste 203Manassas, VA 20110-4404 · (571) 662-5885 · Fax (703) 368-2498

Phone(571) 662-5885

Fax(703) 368-2498

Sole ProprietorNo

Medical School CMSEmory University School Of MedicineGraduated 2020

Enumeration DateJuly 13, 2017

Last NPPES UpdateJuly 10, 20244 updates tracked since enumeration

NPPES CertifiedJuly 10, 2024

✔ NPI 1144742958 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

Licenses✔ Licensed in VA · 0101279272✔ Licensed in NC · 2022-03066

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

8640 SUDLEY RD STE 203, Manassas, VA 20110

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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

Alexis Sienna Halyard 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 ID9436580339

PECOS Enrollment IDI20231006000400

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

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

Uva Community Health Medical Group, LLC

Same address

Cardiovascular Disease

8640 SUDLEY RD, SUITE 302
Manassas, VA 20110

Reassigned Medicare billing, Virginia enrollment
584 clinicians in this Medicare group

NPI 1265827513 (703) 369-5959

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 1952320061 (District of Columbia)
2,379 clinicians in this Medicare group

NPI 1275886418 (703) 938-5300

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 6

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.

88 services61 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

26 services25 patients

Detection test by immunoassay with direct visual observation for influenza virus 87804

This is a test that identifies the influenza virus in your body. It works by using an immunoassay, a method that detects the presence of the virus through an immune response. The results are directly observable, making it a quick and efficient way to diagnose flu.

19 services12 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

16 services14 patients

Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) 87811

This is a test to detect COVID-19, the virus causing severe respiratory illness. It uses a method called immunoassay, which identifies the virus by its unique proteins. The test is directly observed for accuracy. It helps determine if you're currently infected.

15 services14 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

13 services13 patients

Hospital Affiliations CMS Care Compare 2

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, VA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490045

Location8700 Sudley RdManassas, VA 20110 · Manassas City 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

Physician 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.

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 10

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

DR. DENISE THI NGUYEN DO

Family Medicine