Ellen Katherine Marshall, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

Q10012683 Issued in DE

Practice address

17527 Nassau Commons Blvd Ste 101
Lewes, DE 19958-6283

Phone

(302) 260-9439

NPI assigned

Dec 7, 2023

Sex

Female

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in DE

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Clinical Social Worker

Education

Other, 2023

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Dr Ellen Marshall

  • Clinical Social Worker
  • Lewes, DE
  • NPI 1952104846
  Medicare reassignment NPD Authorized official

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1701907200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784505600000",
    "number": "1699542837",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "28900 POPLAR GROVE DR",
            "city": "MILTON",
            "state": "DE",
            "postal_code": "199683307",
            "telephone_number": "302-381-5265"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "17527 NASSAU COMMONS BLVD STE 101",
            "city": "LEWES",
            "state": "DE",
            "postal_code": "199586283",
            "telephone_number": "302-260-9439"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARSHALL",
        "first_name": "ELLEN",
        "middle_name": "KATHERINE",
        "name_prefix": "Dr.",
        "credential": "LCSW",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2023-12-07",
        "last_updated": "2026-07-20",
        "certification_date": "2026-07-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101Y00000X",
            "taxonomy_group": "",
            "desc": "Counselor",
            "state": "DE",
            "license": "B2-0010498",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "DE",
            "license": "Q10012683",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Matthew Marrie, DPT
• Carol L Marsch, CRNP
• Wendy S Marsh, RN
• Kathryn Marshak, RN BSN
• Charles Marshall V, REGISTERED NURSE
• Jacquelyn Marshall
• Robin Alicia Marshall, RN
• Trenton Stone Marshall, DMD
• Danielle Marsico, RN
• Chantal Pauline Martel, RN

• Clinical Social Worker in Lewes, DE
• Providers in Lewes, DE by specialty
• Clinical Social Worker in Delaware

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 20, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.