Margo Posillico Messina, LCSW-R

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

R047832-1 Issued in NY

Practice address

29 Northgate Dr
Greenlawn, NY 11740

Phone

(631) 271-0913

Fax

(631) 261-3250

NPI assigned

Apr 18, 2007

Sex

Female

Sole proprietor

Yes

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 NY

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, 1993

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Living Waters LCSW PCGroup PAC ID 7719032606, 5 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

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.

• Living Waters LCSW PC

  • Clinical Social Worker
  • Greenlawn, NY
  • NPI 1780856062
  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1176854400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787702400000",
    "number": "1467678326",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "29 NORTHGATE DR",
            "city": "GREENLAWN",
            "state": "NY",
            "postal_code": "11740",
            "telephone_number": "631-271-0913",
            "fax_number": "631-261-3250"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "29 NORTHGATE DR",
            "city": "GREENLAWN",
            "state": "NY",
            "postal_code": "11740",
            "telephone_number": "631-271-0913",
            "fax_number": "631-261-3250"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MESSINA",
        "first_name": "MARGO",
        "middle_name": "POSILLICO",
        "name_prefix": "Ms.",
        "credential": "LCSW-R",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2007-04-18",
        "last_updated": "2026-08-26",
        "certification_date": "2026-08-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "NY",
            "license": "R047832-1",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• McEvilley Forever Young Wellness, LTD.
• Jamie McGuire
• Susan Jean McKenna, RRT
• Shaun McLeod, L.C.S.W.
• Maria McRobb, RPAC
• Michael S Buchholtz MD PC
• Michael S. Buchholtz, MD PC
• Diana Marie Milillo-Portugal, MHC
• Richard Miola, R. PH.
• Meghan Moriarty

• Clinical Social Worker in Greenlawn, NY
• Providers in Greenlawn, NY by specialty
• Clinical Social Worker in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 26, 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.