DR ELLEN MARSHALL
NPI 1952104846
Social Worker - Clinical in Lewes, DE

Active since March 28, 2025
17527 NASSAU COMMONS BLVD STE 101, LEWES, DE 19958(302) 381-5265 Get Directions Write a Review

NPPES record last updated: February 6, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 6, 2026, Apr 3, 2025, Mar 28, 2025 (3 updates tracked since 2025).

About Dr Ellen Marshall NPPES

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

DR ELLEN MARSHALL (NPI 1952104846) is a healthcare organization registered as a clinical in Lewes, Delaware and active in the NPI registry since March 2025. The organization lists Ellen K Marshall, Business Owner, as its authorized official.

NPPES Registry Identity

NPI1952104846
Entity TypeOrganization
Primary Taxonomy1041C0700X
Legal Business NameDR ELLEN MARSHALL
Location Address17527 NASSAU COMMONS BLVD STE 101Lewes, DE 19958-6283
Mailing Address19606 Coastal Hwy Unit 106Rehoboth Beach, DE 19971-8576 · (302) 381-5265
Organization SubpartNo
Authorized OfficialEllen K MarshallBusiness Owner · (302) 381-5265
Enumeration DateMarch 28, 2025
Last NPPES UpdateFebruary 6, 20263 updates tracked since enumeration
NPPES CertifiedFebruary 6, 2026
✔ NPI 1952104846 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ 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.
Also ListedPsychologist · FamilyTaxonomy 103TF0000X
17527 NASSAU COMMONS BLVD STE 101, Lewes, DE 19958

Group Practice 2

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP
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

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr Ellen Marshall 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 Dr Ellen Marshall, which bills Medicare for the services this clinician delivers.

Clinician (1)

Clinical Social Worker
NPI 1699542837
17527 NASSAU COMMONS BLVD STE 101
Lewes, DE 19958
(302) 260-9439
✔ PECOS✔ Accepts MedicareSame address

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 Dr Ellen Marshall's NPI number?

The NPI number for Dr Ellen Marshall is 1952104846. It was assigned to this organization in the NPPES registry on March 28, 2025.

Where is Dr Ellen Marshall located?

Dr Ellen Marshall is located at 17527 Nassau Commons Blvd Ste 101, Lewes, DE 19958. The listed phone number is (302) 381-5265.

What is Dr Ellen Marshall's specialty?

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

Is Dr Ellen Marshall enrolled in Medicare?

Yes. Dr Ellen Marshall is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Dr Ellen Marshall?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Social Worker) reassigns their Medicare billing to Dr Ellen Marshall. 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.

What insurance does Dr Ellen Marshall accept?

Health plans from AmeriHealth Caritas Next and Highmark Blue Cross Blue Shield Delaware list Dr Ellen Marshall 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 Dr Ellen Marshall was last updated on February 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.