Individual provider Active NPI

Steven Gruenstein, M.D.

  • Hematology & Oncology Physician
  • New York, NY
National Provider Identifier
1407855307
Registry record updated Jan 17, 2020
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
1776051 Issued in NY
Practice address
12 E 86TH St Ofc 4
New York, NY 10028-0517
Phone
(212) 861-6660
Fax
(212) 744-4696
NPI assigned
Jul 21, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 17, 2020

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Hematology & Oncology Physician 207RH0003X 1776051 NY Primary

Addresses

Primary practice location

12 E 86TH St Ofc 4
New York, NY 10028-0517

Mailing address

1500 Route 112 BLDG 4
Port Jefferson Station, NY 11776-8055
Phone (631) 751-3000

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
I20060323000785 NY Practitioner - Hematology/OncologyPractitioner - Internal Medicine 7810905478 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hematology/Oncology
Education
Other, 1984
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
North Shore Hematology Oncology Associates PCGroup PAC ID 1456243641, 474 clinicians

Practice addresses (Care Compare)

12 E 86TH St
Ofc 4C
New York, NY 10028-0517
Phone (631) 751-3000

Hospital & facility affiliations

  • Lenox Hill Hospital Hospital, New York, NY, CCN 330119

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as group
Promoting interoperability
100
Improvement activities
40

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
1776051NYMDHematology & Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
North Shore Hematology Oncology Associates PC CurrentSince Sep 1, 2017 Accepting new patients
North Shore Hematology Oncology Associates PC Hematology & Oncology PastSince Dec 15, 2024 Accepting new patients
North Shore Hematology Oncology Associates PC Hematology & Oncology PastSince Sep 1, 2017 Accepting new patients

Locations

6118 190th St
Ste 217
Fresh Meadows, NY 11365

12 E 86th St
Ofc 4
New York, NY 10028
Phone (212) 831-4900

1421 3rd Ave
New York, NY 10028
Phone (212) 744-5538

210 E 86th St
New York, NY 10028
Phone (212) 717-2780

3111 New Hyde Park Rd
North New Hyde Pk, NY 11042
Phone (516) 365-6100

1500 Route 112
Bldg 4
Port Jefferson Station, NY 11776
Phone (631) 574-8354

48 Route 25A
Smithtown, NY 11787
Phone (631) 862-3540

Networks

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

Interoperability endpoints

  • Direct secure messaging: sgruenstein65826@northwell.direct-ci.com

Organizations & group practices 3

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 1

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": "1121904000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1579219200000",
    "number": "1407855307",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1500 ROUTE 112 BLDG 4",
            "city": "PORT JEFFERSON STATION",
            "state": "NY",
            "postal_code": "117768055",
            "telephone_number": "631-751-3000",
            "fax_number": "631-509-6559"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "12 E 86TH ST OFC 4",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100280517",
            "telephone_number": "212-861-6660",
            "fax_number": "212-744-4696"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRUENSTEIN",
        "first_name": "STEVEN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-07-21",
        "last_updated": "2020-01-17",
        "certification_date": "2020-01-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "NY",
            "license": "1776051",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

Verify at the official NPI Registry.