Individual provider Active NPI

Steffi Nainan, MD

  • Student in an Organized Health Care Education/Training Program
  • Brooklyn, NY
National Provider Identifier
1093396947
Registry record updated Mar 11, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Student in an Organized Health Care Education/Training ProgramTaxonomy code 390200000X
Practice address
450 Clarkson Ave # Msc50
Brooklyn, NY 11203-2012
Phone
(718) 270-2353
NPI assigned
Apr 20, 2021
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 11, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 332452 NY
Student in an Organized Health Care Education/Training Program 390200000X Primary

Addresses

Primary practice location

450 Clarkson Ave # Msc50
Brooklyn, NY 11203-2012

Mailing address

450 Clarkson Ave # Msc50
Brooklyn, NY 11203-2012
Phone (718) 270-2353

Medicare participation

Medicare enrollment files
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: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20241009000363 NY Practitioner - Internal Medicine 0143751552 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
North Shore-Lij Medical PCGroup PAC ID 3375701568, 6,374 clinicians

Practice addresses (Care Compare)

25611 Union Tpke
Glen Oaks, NY 11004-1251
Phone (718) 470-4000

Hospital & facility affiliations

  • North Shore University Hospital Hospital, Manhasset, NY, CCN 330106
  • Northwell Hospital Glen Cove Hospital, Glen Cove, NY, CCN 330181

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
332452NYMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
North Shore-Lij Medical PC Internal Medicine CurrentSince Sep 23, 2024 Accepting new patients
North Shore - Lij Medical PC Internal Medicine CurrentSince Sep 23, 2024 Accepting new patients

Locations

10201 66th Rd
Forest Hills, NY 11375
Phone (718) 830-4091

25611 Union Tpke
Glen Oaks, NY 11004
Phone (718) 470-4000

865 Northern Blvd
Ste 102
Great Neck, NY 11021
Phone (516) 622-5000

1111 Marcus Ave
Ste M04
New Hyde Park, NY 11042
Phone (585) 736-3650

300 Community Dr
Plandome, NY 11030

Networks

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

Interoperability endpoints

  • Direct secure messaging: steffinainan@nslijmedgr.allscriptsdirect.net

Organizations & group practices 2

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 2

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": "1618876800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773187200000",
    "number": "1093396947",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "450 CLARKSON AVE # MSC50",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112032012",
            "telephone_number": "718-270-2353"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "450 CLARKSON AVE # MSC50",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112032012",
            "telephone_number": "718-270-2353"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NAINAN",
        "first_name": "STEFFI",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-04-20",
        "last_updated": "2026-03-11",
        "certification_date": "2026-03-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "332452",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Brooklyn, NY

Sources for this page

Verify at the official NPI Registry.