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

CHRISTINE WALK FNP-C
NPI 1336698133
Nurse Practitioner - Family in Alexandria, VA

Active since September 22, 2016PECOS EnrolledAccepts Medicare Assignment
5521 FRANCONIA RD, # 10106, ALEXANDRIA, VA 22310(703) 261-4184 Get Directions Write a Review

NPPES record last updated: August 22, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 22, 2023, Jun 9, 2023, Feb 15, 2023 and 8 more (11 updates tracked since 2016).

About Christine Walk Fnp-c NPPES

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

CHRISTINE WALK FNP-C (NPI 1336698133) is an individual family provider in Alexandria, Virginia, licensed in District Of Columbia (RN1045030) and active in the NPI registry since September 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1336698133
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameCHRISTINE WALKCredential: FNP-C
Location Address5521 FRANCONIA RD, # 10106Alexandria, VA 22310
Mailing Address5521 Franconia Rd, Unit 10106Alexandria, VA 22310-9998 · (703) 261-4184
Phone(703) 261-4184
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateSeptember 22, 2016
Last NPPES UpdateAugust 22, 202311 updates tracked since enumeration
NPPES CertifiedAugust 22, 2023
✔ NPI 1336698133 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 DC · RN1045030✔ Licensed in VA · 002417953
5521 FRANCONIA RD, Alexandria, VA 22310
Open in Google Maps ↗

Other Names 1

Former Name (1)Christine Deflumeri

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

Christine Walk 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 ID5496036535
PECOS Enrollment IDI20170825000288
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

3

Medicare enrollment records show Christine Walk reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Spindle Health PLLC
1.0 mi
Primary Care
6118 FRANCONIA RD STE 214
Alexandria, VA 22310
  • Reassigned Medicare billing, District of Columbia enrollment
  • 2 clinicians in this Medicare group
NPI 1639862170 (703) 261-4184
Carbon Health Medical Group Of Florida PA
87 mi
Urgent Care
10 N NANSEMOND ST
Richmond, VA 23221
  • Reassigned Medicare billing, Virginia, Massachusetts and Florida enrollments
  • Also billed through NPI 1881261303 (Massachusetts), NPI 1942812763 (Florida)
  • 18 clinicians in this Medicare group
NPI 1205417615 (844) 234-7741
Southern Arizona Urgent Care, LLC
1,942 mi
Urgent Care
1880 E TANGERINE RD, STE 100
Oro Valley, AZ 85755
  • Reassigned Medicare billing, Arizona enrollment
  • 99 clinicians in this Medicare group
NPI 1689039398 (520) 900-7006

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 22310 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
$100.31 typical visit price
range $65.18 – $194.86
Typical copayment $25.07 (range $16.29 – $48.71)
Most-billed visit code 99203
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
96%3,333 patients4/55-star benchmark: 99%
Health Information Exchange
The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…
81%324 patients4/55-star benchmark: 88%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
97%70 patients4/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
68%386 patients3/55-star benchmark: 97%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
99%386 patients4/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
85%386 patients4/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
70%386 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
1 supplier14 claims14 services$42.71 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
3 suppliers50 claims51 services$3.44 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Christine Walk's NPI number?

The NPI number for Christine Walk is 1336698133. It was assigned to this individual provider in the NPPES registry on September 22, 2016. The provider is also known as Christine Deflumeri.

Where is Christine Walk located?

Christine Walk practices at 5521 Franconia Rd # 10106, Alexandria, VA 22310. The listed phone number is (703) 261-4184.

What is Christine Walk's specialty?

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

Is Christine Walk enrolled in Medicare?

Yes. Christine Walk 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 Christine Walk's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christine Walk reassigns Medicare benefits to 3 organizations: Spindle Health PLLC (Alexandria, VA), Carbon Health Medical Group Of Florida PA (Richmond, VA) and Southern Arizona Urgent Care, LLC (Oro Valley, AZ). 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 Christine Walk'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 Christine Walk was last updated on August 22, 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.