Individual provider Active NPI

James Nielsen, M.D.

  • Pediatric Cardiology Physician
  • East Setauket, NY
National Provider Identifier
1669432266
Registry record updated Aug 19, 2022
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Cardiology PhysicianTaxonomy code 2080P0202X
License
213529-1 Issued in NY
Practice address
4 Technology Dr
Suite 2
East Setauket, NY 11733-4080
Phone
(631) 444-0650
NPI assigned
Mar 27, 2006
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 19, 2022

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X 213529 NY
Pediatric Cardiology Physician 2080P0202X 213529-1 NY Primary

Addresses

Primary practice location

4 Technology Dr
Suite 2
East Setauket, NY 11733-4080

Mailing address

PO Box 1559
Stony Brook, NY 11790-0989
Phone (631) 444-0650

Other practice location 1

120 Mineola Blvd
Mineola, NY 11501-4064
Phone (516) 663-4600

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address jnielsen224176@nyumc.direct-ci.com

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20080910000023 NY Practitioner - Pediatric MedicinePractitioner - Cardiovascular Disease (Cardiology) 5496850893 Reassigns benefits to 4 organizations
I20250818001389 NY Practitioner - Cardiovascular Disease (Cardiology) 5496850893 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pediatric MedicineAlso: Cardiovascular Disease (Cardiology)
Education
Tulane University School of Medicine, 1995
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
New York UniversityGroup PAC ID 1355232422, 5,925 clinicians

Practice addresses (Care Compare)

111 Broadway
New York, NY 10006-1901
Phone (212) 263-9700

150 E 32ND St
New York, NY 10016-6058
Phone (212) 263-3049

400 E 34TH St
New York, NY 10016-4901
Phone (212) 263-7300

530 1St Ave
New York, NY 10016-6402
Phone (212) 263-7300

550 1St Ave
New York, NY 10016-6402
Phone (212) 263-7300

560 1St Ave
New York, NY 10016-6402
Phone (212) 263-7300

Hospital & facility affiliations

  • NYU Langone Hospitals Hospital, New York, NY, CCN 330214

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
213529NYMDLicensed Practical Nurse
213529-1NYMDPediatric Cardiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
NYU Langone Hospitals CurrentSince Apr 22, 2020 Accepting new patients
New York City Health and Hospitals Corporation CurrentSince Jul 1, 2025 Accepting new patients
Metropolitan Medical Practice Plan PC CurrentSince Mar 1, 2020 Accepting new patients
New York City Health and Hospitals Corporation CurrentSince Jul 1, 2025 Accepting new patients
New York City Health and Hospitals Corporation Current Accepting new patients
New York University Pediatrics CurrentSince Dec 1, 2017 Accepting new patients
Physician Affiliate Group of New York PC CurrentSince Mar 13, 2025 Accepting new patients
NYU Langone Hospitals CurrentSince Apr 22, 2020 Accepting new patients
NYU Langone Hospitals Current Accepting new patients
New York University CurrentSince Dec 1, 2017 Accepting new patients
Mount Sinai School of Medicine Pediatrics Past Accepting new patients
Icahn School of Medicine at Mount Sinai Past Accepting new patients

Locations

234 E 149th St
Rm 8D200
Bronx, NY 10451

2601 Ocean Pkwy
Brooklyn, NY 11235
Phone (718) 616-5354

8268 164th St
Jamaica, NY 11432
Phone (718) 883-2929

120 Mineola Blvd
Mineola, NY 11501
Phone (516) 663-4510

506 Malcolm X Blvd
New York, NY 10037
Phone (212) 939-1000

301 E 17th St
New York, NY 10003
Phone (212) 460-0125

1901 1st Ave
New York, NY 10029
Phone (212) 230-6262

1901 1st Ave
Rm 5M44
New York, NY 10029
Phone (212) 423-6262

50 Water St
Fl 3
New York, NY 10004

Networks

  • Healthfirst Medicare Network H9678
  • Healthfirst Medicare Network H1722
  • Healthfirst Medicare Network H5989
  • Healthfirst Medicare Network H3359

Interoperability endpoints

  • Direct secure messaging: jnielsen680127@nychhc.direct-ci.com

Organizations & group practices 12

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.

Hospital & facility affiliations 7

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

NPI Registry JSON

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

{
    "created_epoch": "1143417600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1660867200000",
    "number": "1669432266",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 1559",
            "city": "STONY BROOK",
            "state": "NY",
            "postal_code": "117900989",
            "telephone_number": "631-444-0650"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4 TECHNOLOGY DR",
            "address_2": "SUITE 2",
            "city": "EAST SETAUKET",
            "state": "NY",
            "postal_code": "117334080",
            "telephone_number": "631-444-0650"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "120 Mineola Blvd",
            "address_purpose": "LOCATION",
            "city": "Mineola",
            "state": "NY",
            "postal_code": "115014064",
            "country_code": "US",
            "telephone_number": "516-663-4600",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NIELSEN",
        "first_name": "JAMES",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-03-27",
        "last_updated": "2022-08-19",
        "certification_date": "2022-08-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "NY",
            "license": "213529",
            "primary": false
        },
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "NY",
            "license": "213529-1",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "jnielsen224176@nyumc.direct-ci.com",
            "affiliation": "N",
            "address_1": "120 Mineola Blvd",
            "city": "Mineola",
            "state": "NY",
            "country_code": "US",
            "postal_code": "115014064",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in East Setauket, NY

Sources for this page

Verify at the official NPI Registry.