Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

ELLA SIMONE WALTER LMHP-SIS
NPI 1891617221
Social Worker - Clinical in Arlington, VA

Active since July 28, 2026
4250 FAIRFAX DR STE 600, ARLINGTON, VA 22203(240) 973-3516 Get Directions Write a Review

NPPES record added: July 28, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Ella Simone Walter Lmhp-sis NPPES

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

ELLA SIMONE WALTER LMHP-SIS (NPI 1891617221) is an individual clinical provider in Arlington, Virginia, licensed in Virginia (0906016732) and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1891617221
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameELLA SIMONE WALTERCredential: LMHP-SIS
Location Address4250 FAIRFAX DR STE 600Arlington, VA 22203-1665
Mailing Address4250 Fairfax Dr Ste 600Arlington, VA 22203-1665 · (240) 973-3516
Sole ProprietorNo
Enumeration DateJuly 28, 2026
NPPES CertifiedJuly 28, 2026
NPI 1891617221 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 · 0906016732
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.
4250 FAIRFAX DR STE 600, Arlington, VA 22203

Other Providers at the Same Location NPPES 15

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

Home Health
4250 FAIRFAX DR STE 600
ARLINGTON, VA 22203
Home Health
4250 FAIRFAX DR STE 600
ARLINGTON, VA 22203
Psychiatry & Neurology (Psychiatry)
4250 FAIRFAX DR STE 600
ARLINGTON, VA 22203
Counselor (Mental Health)
4250 FAIRFAX DR STE 600
ARLINGTON, VA 22203
Non-emergency Medical Transport (VAN)
4250 FAIRFAX DR STE 600
ARLINGTON, VA 22203
Psychologist (Clinical)
4250 FAIRFAX DR STE 600
ARLINGTON, VA 22203
Counselor (Mental Health)
4250 FAIRFAX DR STE 600
ARLINGTON, VA 22203
Counselor (Professional)
4250 FAIRFAX DR STE 600
ARLINGTON, VA 22203

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 Ella Walter's NPI number?

The NPI number for Ella Walter is 1891617221. It was assigned to this individual provider in the NPPES registry on July 28, 2026.

Where is Ella Walter located?

Ella Walter practices at 4250 Fairfax Dr Ste 600, Arlington, VA 22203. The listed phone number is (240) 973-3516.

What is Ella Walter's specialty?

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

When was this NPI record last updated?

The NPPES record for Ella Walter was last updated on July 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 days 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.