Ellen Cronin Karlberg, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

LCSW2141048 Issued in MA

Practice address

800 Washington St
Boston, MA 02111-1552

Phone

(617) 636-5000

NPI assigned

Oct 24, 2025

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MA

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, 2025

Medicare assignment

May accept Medicare assignment

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.

• LGH Medical Group, Inc.

  • Hospitalist Physician
  • Lowell, MA
  • NPI 1174698385
  Medicare reassignment NPD
• LGH Professional Services LLC

  • Internal Medicine Physician
  • Lowell, MA
  • NPI 1417485541
  NPD (past)

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

{
    "created_epoch": "1761264000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761264000000",
    "number": "1568330314",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "97 E BROOKLINE ST APT 3",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021182660"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "800 WASHINGTON ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021111552",
            "telephone_number": "617-636-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KARLBERG",
        "first_name": "ELLEN",
        "middle_name": "CRONIN",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-10-24",
        "last_updated": "2025-10-24",
        "certification_date": "2025-10-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "MA",
            "license": "LCSW2141048",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Navin Mithri Kariyawasam, MD
• Ami Karkar
• Mahima Karki
• Donna Jean Karl, APRN
• Kelly C Karl, PSY.D.
• Samantha Karle, MD
• Monica Karlen
• Kirill Karlin, MD
• Lawrence I Karlin, MD
• Elizabeth Wood Karlson, MD

• Clinical Social Worker in Boston, MA
• Providers in Boston, MA by specialty
• Clinical Social Worker in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 24, 2025; 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.