Grace Sullivan

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

12017032 Issued in CT

Practice address

2001 W Main St Ste 132
Stamford, CT 06902-4544

Phone

(203) 363-0123

Fax

(475) 619-9855

NPI assigned

Mar 26, 2026

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

Practice roles

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/12623/brand/1/csg/1/fhir/r4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Sound Beach Pediatrics, LLC

  • Pediatrics Physician
  • Stamford, CT
  • NPI 1548625569
  NPD (past)

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

{
    "created_epoch": "1774483200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785110400000",
    "number": "1144169947",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5 PERRYRIDGE RD",
            "city": "GREENWICH",
            "state": "CT",
            "postal_code": "068304608"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2001 W MAIN ST STE 132",
            "city": "STAMFORD",
            "state": "CT",
            "postal_code": "069024544",
            "telephone_number": "203-363-0123",
            "fax_number": "475-619-9855"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SULLIVAN",
        "first_name": "GRACE",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-03-26",
        "last_updated": "2026-07-27",
        "certification_date": "2026-07-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "CT",
            "license": "12017032",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kang Sook Suh, DO
• Brian Paul Sullivan, MD
• Chelsea Sullivan, OT
• Daria Elizabeth Sullivan, LPC
• Elizabeth Cingari Sullivan, OT
• Lisa Worden Sullivan, PH.D.
• Mary Cecilia Sullivan, MSN, APRN
• Michael Robert Sullivan
• Sean Raymond Sullivan, DPT, ATC
• Melissa Grace Sumadchat, BCBA

• Family Nurse Practitioner in Stamford, CT
• Providers in Stamford, CT by specialty
• Family Nurse Practitioner in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 27, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.