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MS. KAREN MILLEN LCSW
NPI 1740390244
Social Worker - Clinical in Herndon, VA

Active since August 30, 2006PECOS EnrolledAccepts Medicare Assignment
447 CARLISLE DR STE A, HERNDON, VA 20170(571) 307-7307(571) 307-7307 Get Directions Write a Review

NPPES record last updated: February 25, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Ms. Karen Millen Lcsw NPPES

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

MS. KAREN MILLEN LCSW (NPI 1740390244) is an individual clinical provider in Herndon, Virginia, licensed in Virginia (0904003844) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS and is a graduate of Boston University School Of Medicine (1989).

NPPES Registry Identity

NPI1740390244
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. KAREN MILLENCredential: LCSW
Location Address447 CARLISLE DR STE AHerndon, VA 20170-5605
Mailing Address12648 Fantasia DrHerndon, VA 20170-2901 · (571) 307-7307
Phone(571) 307-7307
Fax(571) 307-7307
Sole ProprietorYes
Medical School CMSBoston University School Of MedicineGraduated 1989
Enumeration DateAugust 30, 2006
Last NPPES UpdateFebruary 25, 2026
NPPES CertifiedFebruary 25, 2026
✔ NPI 1740390244 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 · 0904003844
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.
447 CARLISLE DR STE A, Herndon, VA 20170
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Karen Millen 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 ID9335204783
PECOS Enrollment IDI20090218000336
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20170 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.

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 Karen Millen's NPI number?

The NPI number for Karen Millen is 1740390244. It was assigned to this individual provider in the NPPES registry on August 30, 2006.

Where is Karen Millen located?

Karen Millen practices at 447 Carlisle Dr Ste A, Herndon, VA 20170. The listed phone number is (571) 307-7307.

What is Karen Millen's specialty?

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

Is Karen Millen enrolled in Medicare?

Yes. Karen Millen 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.

When was this NPI record last updated?

The NPPES record for Karen Millen 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 5 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.