John Sullivan, MD

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

82724 Issued in CT

Practice address

PO Box 208064
New Haven, CT 06520-8064

Phone

(203) 785-4081

NPI assigned

May 7, 2019

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in CT

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Pediatric Medicine

Education

University of Massachusetts Medical School, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Yale UniversityGroup PAC ID 9436061736, 2,632 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Yale-New Haven Hospital Hospital, New Haven, CT, CCN 070022

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jsullivan38309@direct.ynhh.org

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.

• Yale University

  • Anesthesiology Physician
  • New Haven, CT
  • NPI 1205822236

  Pediatrics

  Medicare reassignment Care Compare group NPD
• Greenwich Hospital

  • General Acute Care Hospital
  • Greenwich, CT
  • NPI 1609846088
  Medicare reassignment NPD
• Greenwich Hospital

  • Community Based Hospice Care Agency
  • Stanford, CT
  • NPI 1073637724
  NPD
• Yale University

  • Durable Medical Equipment & Medical Supplies
  • Fairfield, CT
  • NPI 1548066962
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Yale New Haven Hospital

  • General Acute Care Hospital
  • New Haven, CT
  • NPI 1336139500
  Care Compare affiliation
• Yale New Haven Hospital

  • General Acute Care Hospital
  • New Haven, CT
  • NPI 1578778726
  Care Compare affiliation

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

{
    "created_epoch": "1557187200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755475200000",
    "number": "1376108050",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 208064",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065208064",
            "telephone_number": "203-785-4081"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "PO BOX 208064",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065208064",
            "telephone_number": "203-785-4081"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SULLIVAN",
        "first_name": "JOHN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-05-07",
        "last_updated": "2025-08-18",
        "certification_date": "2025-08-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "CT",
            "license": "82724",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Nanthiya Sujijantarat, MD
• Denis G Sukhodolsky, PHD
• Anna Sullivan, LCSW
• Brigit Sullivan, PA-C
• Janessa Aaren Sullivan
• Michael K Sullivan, PA-C
• Tami Pitcher Sullivan, PH.D.
• Victoria Mary Sullivan, PA-C
• Michael Sultan, D.D.S
• Razia Sultana, MD

• Pediatrics Physician in New Haven, CT
• Providers in New Haven, CT by specialty
• Pediatrics Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 18, 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.
• 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.