Margaret O'Connell, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

16838 Issued in CT

Practice address

54 E Ramsdell St
New Haven, CT 06515-1140

Phone

(203) 781-4600

Fax

(203) 781-4624

NPI assigned

May 28, 2026

Last updated

Jun 25, 2026By the provider in NPPES

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

Other identifiers 5

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Specialty

Clinical Social Worker

Education

Other, 2022

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

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

{
    "created_epoch": "1779926400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782345600000",
    "number": "1205767266",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 LONG WHARF DR STE 321",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065115946",
            "telephone_number": "203-781-4600",
            "fax_number": "203-781-4624"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "54 E RAMSDELL ST",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065151140",
            "telephone_number": "203-781-4600",
            "fax_number": "203-781-4624"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'CONNELL",
        "first_name": "MARGARET",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-05-28",
        "last_updated": "2026-06-25",
        "certification_date": "2026-06-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CT",
            "license": "16838",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "008023170",
            "state": "CT"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "008024427",
            "state": "CT"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "008144969",
            "state": "CT"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "008042339",
            "state": "CT"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "008109605",
            "state": "CT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Samuel O'Brien
• Yvonne O'Brien, LICSW
• Arlene O'Callahan, LPN
• Ciara Kiernan O'Connell, MD
• Lucy O'Connell, C.N.M., W.H.N.P, R.N
• Matthew Peter O'Connell, PHARMD
• Leslie Hetzel O'Connor, APRN, BC
• Meghan Marie O'Connor
• Peggy Rubio O'Connor, P.A.
• Sean O'Connor

• Clinical Social Worker in New Haven, CT
• Providers in New Haven, CT by specialty
• Clinical Social Worker in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 25, 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.