DR. ELLEN KATHERINE MARSHALL LCSW
NPI 1699542837
Social Worker - Clinical in Lewes, DE
About Dr. Ellen Katherine Marshall Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ELLEN KATHERINE MARSHALL LCSW (NPI 1699542837) is an individual clinical provider in Lewes, Delaware, licensed in Delaware (Q10012683) and active in the NPI registry since December 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
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
Dr. Ellen Katherine Marshall 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19958 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LEWES, DE 19958
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 Ellen Marshall's NPI number?
The NPI number for Ellen Marshall is 1699542837. It was assigned to this individual provider in the NPPES registry on December 7, 2023.
Where is Ellen Marshall located?
Ellen Marshall practices at 17527 Nassau Commons Blvd Ste 101, Lewes, DE 19958. The listed phone number is (302) 260-9439.
What is Ellen Marshall's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Ellen Marshall enrolled in Medicare?
Yes. Ellen Marshall 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.
What insurance does Ellen Marshall accept?
Health plans from AmeriHealth Caritas Next and Highmark Blue Cross Blue Shield Delaware list 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 Ellen Marshall was last updated on July 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 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.
# Dr. Ellen Katherine Marshall, LCSW · NPI 1699542837
Clinical provider in Lewes, Delaware. Individual provider, active in the CMS NPPES registry since December 7, 2023.
## Identity
- **NPI:** 1699542837 (Entity type: Individual)
- **Enumerated:** December 7, 2023
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** Q10012683 (Delaware)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 17527 NASSAU COMMONS BLVD STE 101, Lewes, DE 19958-6283
- **Phone:** (302) 260-9439
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** July 20, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1699542837) · Data from the CMS NPPES public registry.