Maeve O'Sullivan

Primary specialty

Adult Health Nurse PractitionerTaxonomy code 363LA2200X

License

312544 Issued in NY

Practice address

1275 York Ave
New York, NY 10065-6007

Phone

(212) 639-2000

NPI assigned

Nov 21, 2025

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: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

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.

• Memorial Solid Tumor Group

  • Internal Medicine Physician
  • New York, NY
  • NPI 1699746172
  Medicare reassignment NPD

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

{
    "created_epoch": "1763683200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769990400000",
    "number": "1962363556",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1275 YORK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100656007"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1275 YORK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100656007",
            "telephone_number": "212-639-2000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'SULLIVAN",
        "first_name": "MAEVE",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2025-11-21",
        "last_updated": "2026-02-02",
        "certification_date": "2026-02-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "NY",
            "license": "312544",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Eilish T O'Sullivan, PT
• Geoffrey Michael O'Sullivan, RPA-C
• Kelly Catherine O'Sullivan, LCSW
• Kelly Catherine O'Sullivan, MSN, AGACNP-BC
• Kerry O'Sullivan
• Mary Katherine O'Sullivan, DNP, ARNP
• Mary M O'Sullivan, M.D.
• Megan Elizabeth O'Sullivan, PT
• Michelle O'Sullivan
• Alexis O'Toole, RN

• Adult Health Nurse Practitioner in New York, NY
• Providers in New York, NY by specialty
• Adult Health Nurse Practitioner in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 2, 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.