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

MRS. PAULA C BARRIENTOS LCSW
NPI 1942520473
Social Worker - Clinical in Fairfax, VA

Active since June 07, 2010PECOS EnrolledAccepts Medicare Assignment
8221 WILLOW OAKS CORPORATE DRIVE, SUITE 4-425, FAIRFAX, VA 22031(703) 289-7599(703) 289-4612 Get Directions Write a Review

NPPES record last updated: February 25, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mrs. Paula C Barrientos Lcsw NPPES

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

MRS. PAULA C BARRIENTOS LCSW (NPI 1942520473) is an individual clinical provider in Fairfax, Virginia, licensed in Virginia (0904013787) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2005).

NPPES Registry Identity

NPI1942520473
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMRS. PAULA C BARRIENTOSCredential: LCSW
Location Address8221 WILLOW OAKS CORPORATE DRIVE, SUITE 4-425Fairfax, VA 22031-4512
Mailing Address8221 Willow Oaks Corporate Dr, 4-425Fairfax, VA 22031-4512 · (703) 289-7599 · Fax (703) 289-4612
Phone(703) 289-7599
Fax(703) 289-4612
Sole ProprietorNo
Medical School CMSOtherGraduated 2005
Enumeration DateJune 7, 2010
Last NPPES UpdateFebruary 25, 2026
NPPES CertifiedFebruary 25, 2026
✔ NPI 1942520473 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 · 0904013787
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 DRIVE, Fairfax, VA 22031
Open in Google Maps ↗

Other Names 1

Former Name (1)Paula C Moore Lcsw

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

Mrs. Paula C Barrientos Lcsw 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 ID9032606553
PECOS Enrollment IDI20251016003962
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 Paula Barrientos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Inova Health Care Services
0.6 mi
Internal Medicine
3300 GALLOWS RD, PHYSICIAN SERVICES
Falls Church, VA 22042
  • Reassigned Medicare billing, District of Columbia enrollment
  • 282 clinicians in this Medicare group
NPI 1952320061 (703) 321-2627

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

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

JASMINE KEYANA BELVIN LPC
Counselor (Professional)
8221 WILLOW OAKS CORPORATE DRIVE, 3RD FLOOR WEST
FAIRFAX, VA 22031
Fairfax County (703) 866-2119

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 Paula Barrientos's NPI number?

The NPI number for Paula Barrientos is 1942520473. It was assigned to this individual provider in the NPPES registry on June 7, 2010. The provider is also known as Paula C Moore Lcsw.

Where is Paula Barrientos located?

Paula Barrientos practices at 8221 Willow Oaks Corporate Drive Suite 4-425, Fairfax, VA 22031. The listed phone number is (703) 289-7599.

What is Paula Barrientos's specialty?

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

Is Paula Barrientos enrolled in Medicare?

Yes. Paula Barrientos 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 Paula Barrientos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Paula Barrientos reassigns Medicare benefits to Inova Health Care Services (Falls Church, 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 Paula Barrientos'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 Paula Barrientos was last updated on February 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.