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MRS. SEANA LOUISE MARKHAM AGACNP-BC
NPI 1609680552
Nurse Practitioner in Front Royal, VA

Active since February 03, 2025PECOS Enrolled
351 VALLEY HEALTH WAY, FRONT ROYAL, VA 22630(540) 536-4334 Get Directions Write a Review

NPPES record last updated: February 15, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 15, 2025, Feb 3, 2025 (2 updates tracked since 2025).

About Mrs. Seana Louise Markham Agacnp-bc NPPES

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

MRS. SEANA LOUISE MARKHAM AGACNP-BC (NPI 1609680552) is an individual nurse practitioner in Front Royal, Virginia, licensed in Virginia (0024192487) and active in the NPI registry since February 2025. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1609680552
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMRS. SEANA LOUISE MARKHAMCredential: AGACNP-BC
Location Address351 VALLEY HEALTH WAYFront Royal, VA 22630-6480
Mailing Address120 Brentwood Commons Way Ste 510Brentwood, TN 37027-2028 · (817) 919-3557 · Fax (817) 754-1588
Phone(540) 536-4334
Sole ProprietorYes
Enumeration DateFebruary 3, 2025
Last NPPES UpdateFebruary 15, 20252 updates tracked since enumeration
NPPES CertifiedFebruary 15, 2025
✔ NPI 1609680552 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in VA · 0024192487
Definition
(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.
351 VALLEY HEALTH WAY, Front Royal, VA 22630
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Seana Louise Markham Agacnp-bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Seana Markham reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Shenandoah Memorial Hospital, Inc.
12 mi
Family Medicine
33699 OLD VALLEY PIKE STE D
Strasburg, VA 22657
  • Reassigned Medicare billing, Virginia enrollment
  • 416 clinicians in this Medicare group
NPI 1710494331 (540) 459-1410
Hospitalist Medicine Physicians Of Virginia LLC
19 mi
Internal Medicine
1840 AMHERST ST
Winchester, VA 22601
  • Reassigned Medicare billing, Virginia enrollment
  • 371 clinicians in this Medicare group
NPI 1770756991 (540) 536-4334

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 22630 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 8

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

HAYOUNG LEE MD
Internal Medicine
351 VALLEY HEALTH WAY
FRONT ROYAL, VA 22630
Warren County (540) 636-0378
BELLE GROVE PHYSICIAN SERVICES, LLC
Internal Medicine
351 VALLEY HEALTH WAY
FRONT ROYAL, VA 22630
Warren County (540) 636-0300
WARREN MEMORIAL HOSPITAL, INC.
Emergency Medicine
351 VALLEY HEALTH WAY
FRONT ROYAL, VA 22630
Warren County (540) 636-0300
WARREN MEMORIAL HOSPITAL, INC.
Obstetrics & Gynecology
351 VALLEY HEALTH WAY
FRONT ROYAL, VA 22630
Warren County (540) 636-0300
CALEB TYLER LOWE PA-C
Physician Assistant
351 VALLEY HEALTH WAY
FRONT ROYAL, VA 22630
Warren County (540) 636-0300
DR. DENISE TANDJEU TANDJEU MD
Hospitalist
351 VALLEY HEALTH WAY
FRONT ROYAL, VA 22630
Warren County (540) 536-8000
MAWADDAH AHMED MOHAMED KHALIL ALISLAMBOULI MD
Internal Medicine
351 VALLEY HEALTH WAY, WARREN MEMORIAL HOSPITAL
FRONT ROYAL, VA 22630
Warren County (615) 371-5786
HOSPITALIST MEDICINE PHYSICIANS OF VIRGINIA LLC
Internal Medicine
351 VALLEY HEALTH WAY
FRONT ROYAL, VA 22630
Warren County (540) 636-0378

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 Seana Markham's NPI number?

The NPI number for Seana Markham is 1609680552. It was assigned to this individual provider in the NPPES registry on February 3, 2025.

Where is Seana Markham located?

Seana Markham practices at 351 Valley Health Way, Front Royal, VA 22630. The listed phone number is (540) 536-4334.

What is Seana Markham's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Seana Markham enrolled in Medicare?

Yes. Seana Markham is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Seana Markham's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Seana Markham reassigns Medicare benefits to 2 organizations: Shenandoah Memorial Hospital, Inc. (Strasburg, VA) and Hospitalist Medicine Physicians Of Virginia LLC (Winchester, 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 Seana Markham's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Seana Markham was last updated on February 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months 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.