1. Home
  2. Directory
  3. Virginia
  4. Fairfax
  5. Social Worker
  6. NPI Profile

STACY JENNINGS MUSTICO LCSW, CSAC
NPI 1811580343
Social Worker - Clinical in Fairfax, VA

Active since February 16, 2021PECOS Enrolled
8221 WILLOW OAKS CORPORATE DR, FAIRFAX, VA 22031(571) 373-1226 Get Directions Write a Review

NPPES record last updated: February 16, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Stacy Jennings Mustico Lcsw, Csac NPPES

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

STACY JENNINGS MUSTICO LCSW, CSAC (NPI 1811580343) is an individual clinical provider in Fairfax, Virginia, licensed in Virginia (0904012593) and active in the NPI registry since February 2021. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811580343
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameSTACY JENNINGS MUSTICOCredential: LCSW, CSAC
Location Address8221 WILLOW OAKS CORPORATE DRFairfax, VA 22031-4512
Mailing Address8221 Willow Oaks Corporate DrFairfax, VA 22031-4512 · (571) 373-1226
Phone(571) 373-1226
Sole ProprietorYes
Enumeration DateFebruary 16, 2021
NPPES CertifiedFebruary 16, 2021
✔ NPI 1811580343 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in VA · 0904012593
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
8221 WILLOW OAKS CORPORATE DR, Fairfax, VA 22031
Open in Google Maps ↗

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 (PECOS)

Stacy Jennings Mustico Lcsw, Csac 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 Reassignment

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

Fairfax County, Virginia
7.0 mi
Mental Health (Including Community Mental Health Center)
12011 GOVERNMENT CENTER PARKWAY, SUITE 836
Fairfax, VA 22035
  • Reassigned Medicare billing, District of Columbia enrollment
  • Medicare enrollment name: Director Of Finance-County Of Fairfax Va
  • 383 clinicians in this Medicare group
NPI 1154356244 (703) 324-7000

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 22031 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
$0.00 typical visit price
range $65.18 – $194.86
Typical copayment $0.00 (range $16.29 – $48.71)
Most-billed visit code NA
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
Most-billed visit code 99213
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 20

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

CONNIE LEE MD
Psychiatry & Neurology (Psychiatry)
8221 WILLOW OAKS CORPORATE DR
FAIRFAX, VA 22031
Fairfax County (703) 559-3000
NEIGHBORHOOD HEALTH
Clinic/Center (Federally Qualified Health Center (FQHC))
8221 WILLOW OAKS CORPORATE DR
FAIRFAX, VA 22031
Fairfax County (703) 535-5568
FELICIA ABOAGYE LNP
Nurse Practitioner (Psychiatric/Mental Health)
8221 WILLOW OAKS CORPORATE DR
FAIRFAX, VA 22031
Fairfax County (703) 559-3000
TRISHA MARIE HINDY BURKS LCSW
Social Worker (Clinical)
8221 WILLOW OAKS CORPORATE DR
FAIRFAX, VA 22031
Fairfax County (703) 559-3000
ZACHARY DALE LANDAU LCSW
Social Worker (Clinical)
8221 WILLOW OAKS CORPORATE DR
FAIRFAX, VA 22031
Fairfax County (703) 559-3000
GENOA HEALTHCARE LLC
Pharmacy (Long Term Care Pharmacy)
8221 WILLOW OAKS CORPORATE DR
FAIRFAX, VA 22031
Fairfax County (703) 852-0041
ANNA LEE KOOZMIN MSW, LCSW, LICSW
Social Worker (Clinical)
8221 WILLOW OAKS CORPORATE DR
FAIRFAX, VA 22031
Fairfax County (703) 324-7100
JULIA LYNN CONVERSE LCSW
Social Worker (Clinical)
8221 WILLOW OAKS CORPORATE DR
FAIRFAX, VA 22031
Fairfax County (703) 559-3000

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 Stacy Mustico's NPI number?

The NPI number for Stacy Mustico is 1811580343. It was assigned to this individual provider in the NPPES registry on February 16, 2021.

Where is Stacy Mustico located?

Stacy Mustico practices at 8221 Willow Oaks Corporate Dr, Fairfax, VA 22031. The listed phone number is (571) 373-1226.

What is Stacy Mustico's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Stacy Mustico enrolled in Medicare?

Yes. Stacy Mustico is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stacy Mustico's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stacy Mustico reassigns Medicare benefits to Fairfax County, Virginia (Fairfax, 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 Stacy Mustico's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stacy Mustico accept?

Health plans from Oscar Health list Stacy Mustico 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 Stacy Mustico was last updated on February 16, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.