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AVALON PSYCHOTHERAPY LLC
NPI 1457279127
Social Worker - Clinical in Winchester, VA

Active since July 08, 2026
12 N BRADDOCK ST, WINCHESTER, VA 22601(540) 781-1558 Get Directions Write a Review

NPPES record last updated: August 11, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Aug 11, 2026, Jul 8, 2026 (2 updates tracked since 2026).

About Avalon Psychotherapy Llc NPPES

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

AVALON PSYCHOTHERAPY LLC (NPI 1457279127) is a healthcare organization registered as a clinical in Winchester, Virginia and active in the NPI registry since July 2026. The organization lists Kelly Marquis, Owner, as its authorized official.

NPPES Registry Identity

NPI1457279127
Entity TypeOrganization
Primary Taxonomy1041C0700X
Legal Business NameAVALON PSYCHOTHERAPY LLC
Location Address12 N BRADDOCK STWinchester, VA 22601-4120
Mailing Address12 N Braddock StWinchester, VA 22601-4120 · (540) 781-1558
Phone(540) 781-1558
Organization SubpartNo
Authorized OfficialKelly MarquisOwner · (443) 604-3730
Enumeration DateJuly 8, 2026
Last NPPES UpdateAugust 11, 20262 updates tracked since enumeration
NPPES CertifiedAugust 11, 2026
✔ NPI 1457279127 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
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.
12 N BRADDOCK ST, Winchester, VA 22601
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Avalon Psychotherapy Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Avalon Psychotherapy LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Kelly Marquis, LCSW
Clinical Social Worker
NPI 1902410152
172 LINDEN DR STE 111
Winchester, VA 22601
(540) 536-4881
✔ PECOS✔ Accepts Medicare1.3 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Avalon Psychotherapy LLC's NPI number?

The NPI number for Avalon Psychotherapy LLC is 1457279127. It was assigned to this organization in the NPPES registry on July 8, 2026.

Where is Avalon Psychotherapy LLC located?

Avalon Psychotherapy LLC is located at 12 N Braddock St, Winchester, VA 22601. The listed phone number is (540) 781-1558.

What is Avalon Psychotherapy LLC's specialty?

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

Is Avalon Psychotherapy LLC enrolled in Medicare?

Yes. Avalon Psychotherapy LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Avalon Psychotherapy LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Social Worker) reassigns their Medicare billing to Avalon Psychotherapy LLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Avalon Psychotherapy LLC was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.