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MS. SHERRIE LEE WALKER M.D.
NPI 1902822448
Specialist in Lorton, VA

Active since July 15, 2006PECOS EnrolledAccepts Medicare Assignment
8988 LORTON STATION BLVD, #204, LORTON, VA 22079(703) 339-0477(703) 339-9157 Get Directions Write a Review

NPPES record last updated: February 9, 2011. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Ms. Sherrie Lee Walker M.d. NPPES

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

MS. SHERRIE LEE WALKER M.D. (NPI 1902822448) is an individual specialist in Lorton, Virginia, licensed in Virginia (0101054987) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Inova Mount Vernon Hospital, and is a graduate of Virginia Commonwealth University, School Of Medicine (1987).

NPPES Registry Identity

NPI1902822448
Entity TypeIndividualFemale
Primary Taxonomy174400000X
Provider Legal NameMS. SHERRIE LEE WALKERCredential: M.D.
Location Address8988 LORTON STATION BLVD, #204Lorton, VA 22079-4733
Mailing Address8988 Lorton Station Blvd, #204Lorton, VA 22079-4733 · (703) 339-0477 · Fax (703) 339-9157
Phone(703) 339-0477
Fax(703) 339-9157
Sole ProprietorYes
Medical School CMSVirginia Commonwealth University, School Of MedicineGraduated 1987
Enumeration DateJuly 15, 2006
Last NPPES UpdateFebruary 9, 2011
✔ NPI 1902822448 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in VA · 0101054987
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
8988 LORTON STATION BLVD, Lorton, VA 22079
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Other Identifiers 2

Medicare UPINF35377VA
Medicare ID-Type Unspecified183023VA

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

Ms. Sherrie Lee Walker M.d. 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 ID5799757878
PECOS Enrollment IDI20070402000524
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 Reassignment

Medicare enrollment records show Sherrie Walker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Infectious Diseases Associates PC
Same address
Infectious Disease
8988 LORTON STATION BLVD, #204
Lorton, VA 22079
  • Reassigned Medicare billing, District of Columbia and Virginia enrollments
  • 5 clinicians in this Medicare group
NPI 1013028794 (703) 339-3524

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 4

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
422 services165 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
137 services134 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
16 services15 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
14 services14 patients

Hospital Affiliations CMS Care Compare

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

Inova Mount Vernon Hospital

Acute Care Hospitals · Alexandria, VA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490122
Location2501 Parkers LaneAlexandria, VA 22306 · Fairfax County
Emergency services

Other Providers at the Same Location NPPES 18

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

INFECTIOUS DISEASES ASSOCIATES PC
Internal Medicine (Infectious Disease)
8988 LORTON STATION BLVD, #204
LORTON, VA 22079
Fairfax County (703) 339-3524
FAIRFAX FAMILY PRACTICE CENTERS PC
Family Medicine
8988 LORTON STATION BLVD, SUITE 201
LORTON, VA 22079
Fairfax County (703) 339-7550
KC PHARMACY HEALTHMART INC
Pharmacy (Community/Retail Pharmacy)
8988 LORTON STATION BLVD, SUITE 102
LORTON, VA 22079
Fairfax County (703) 339-9599
DR. DAVID W LEE MD
Family Medicine
8988 LORTON STATION BLVD, SUITE 201
LORTON, VA 22079
Fairfax County (703) 339-7550
DR. CHRISTINE H. LEE MD
Family Medicine
8988 LORTON STATION BLVD, SUITE 201
LORTON, VA 22079
Fairfax County (703) 339-7550
MR. JOHN SANTE SYMINGTON M.D.
Specialist
8988 LORTON STATION BLVD, #204
LORTON, VA 22079
Fairfax County (703) 339-3524
DR. DEBORA VASQUEZ M.D.
Family Medicine
8988 LORTON STATION BLVD
LORTON, VA 22079
Fairfax County (703) 780-2800
SENTARA MEDICAL GROUP
Surgery
8988 LORTON STATION BLVD, STE 103
LORTON, VA 22079
Fairfax County (703) 763-4355

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 Sherrie Walker's NPI number?

The NPI number for Sherrie Walker is 1902822448. It was assigned to this individual provider in the NPPES registry on July 15, 2006.

Where is Sherrie Walker located?

Sherrie Walker practices at 8988 Lorton Station Blvd #204, Lorton, VA 22079. The listed phone number is (703) 339-0477.

What is Sherrie Walker's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Sherrie Walker enrolled in Medicare?

Yes. Sherrie Walker 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 organization bills Medicare for Sherrie Walker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sherrie Walker reassigns Medicare benefits to Infectious Diseases Associates PC (Lorton, VA). The 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 Sherrie Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Sherrie Walker affiliated with any hospitals?

According to CMS data, Sherrie Walker is affiliated with Inova Mount Vernon Hospital.

When was this NPI record last updated?

The NPPES record for Sherrie Walker was last updated on February 9, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.