Greta Lavonne Grier, LCSW, MLSW, CADC

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

CW024762 Issued in PA

Practice address

3900 Woodland Ave
Philadelphia, PA 19104-4551

Phone

(215) 823-5800

NPI assigned

Feb 13, 2024

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Other names 1

• Greta Lavonne King Former name

Medicare fee-for-service enrollment

Enrolled in PA

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

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.

• Grow Healthcare Group PA

  • Mental Health Counselor
  • Miami, FL
  • NPI 1245845932

  Clinical, PA

  Medicare reassignment NPD

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

{
    "created_epoch": "1707782400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764720000000",
    "number": "1346004926",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3900 WOODLAND AVE",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191044551",
            "telephone_number": "215-823-5800"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3900 WOODLAND AVE",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191044551",
            "telephone_number": "215-823-5800"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "162 Carters Mill Rd",
            "address_purpose": "LOCATION",
            "city": "Feasterville Trevose",
            "state": "PA",
            "postal_code": "190532701",
            "country_code": "US",
            "telephone_number": "215-823-5800 x6718",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GRIER",
        "first_name": "GRETA",
        "middle_name": "LAVONNE",
        "credential": "LCSW, MLSW, CADC",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2024-02-13",
        "last_updated": "2025-12-03",
        "certification_date": "2025-12-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "PA",
            "license": "SW137757",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "PA",
            "license": "CW024762",
            "primary": true
        },
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": "PA",
            "license": "8729",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "GRETA",
            "last_name": "KING",
            "middle_name": "LAVONNE",
            "credential": "LMSW, CADC",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Mary Theresa Greybush, DO
• Scott Ryan Greysen, MD
• Beryl Mildora Greywoode, M.D.
• William Grieco, MD
• Alexandra Elaine Grier, MD PHD
• Meli'Sa Danielle Grier, LPC
• Meghan Griesbach, PA-C
• Gerard Christopher Griesser
• Griffin Homes LLC
• Ayannah Griffin, M.ED,

• Clinical Social Worker in Philadelphia, PA
• Providers in Philadelphia, PA by specialty
• Clinical Social Worker in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 3, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.