NPIMap

Individual provider Active NPI

Stephen Mark Henesch, D. O.

  • Diagnostic Radiology Physician
  • West Islip, NY
National Provider Identifier
1851335863
Registry record updated Sep 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
238991 Issued in NY
Practice address
1000 Montauk Hwy
West Islip, NY 11795-4927
Phone
(631) 376-4027
Fax
(631) 376-4046
NPI assigned
Jun 16, 2006
Last updated
Sep 23, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 23, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X 42479 CT
Diagnostic Radiology Physician 2085R0202X 238991 NY Primary

Addresses

Primary practice location

1000 Montauk Hwy
West Islip, NY 11795-4927

Mailing address

PO Box 5918
New York, NY 10087-5918
Phone (800) 827-8415

Other practice location 1

263 Farmington Ave
Farmington, CT 06030-2803
Phone (860) 679-2784

Other identifiers 1

IdentifierTypeStateIssuer
02801009MedicaidNY

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY, WA2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20060909000004 NY Practitioner - Diagnostic RadiologyPractitioner - Pediatric Medicine 0042214819 Reassigns benefits to 2 organizations
I20250307001741 WA Practitioner - Pediatric MedicinePractitioner - Diagnostic Radiology 0042214819 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic RadiologyAlso: Pediatric Medicine
Education
Other, 2000
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

1 Healthy Way
Oceanside, NY 11572-1551
Phone (516) 632-4656

2020 Wantagh Ave
Mount Sinai Doctors Wantagh
Wantagh, NY 11793-3931
Phone (516) 961-4545

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
90.64 of 100Reported as individual
Quality
78.69
Improvement activities
40
Cost
74.94

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Icahn School of Medicine at Mount Sinai Diagnostic Radiology CurrentSince Mar 1, 2021 Accepting new patients
North Shore Medical Group of the Mount Sinai School of Medicine CurrentSince Dec 12, 2025 Accepting new patients
The Association of Chrmc and University Physicians CurrentSince Feb 27, 2025 Accepting new patients
Icahn School of Medicine at Mount Sinai Diagnostic Radiology CurrentSince Mar 1, 2021 Accepting new patients
Icahn School of Medicine at Mount Sinai Diagnostic Radiology CurrentSince Mar 1, 2021 Accepting new patients
Uconn Health Imaging, LLC Diagnostic Radiology CurrentSince Jun 1, 2026 Accepting new patients
Association of CHMC and University Physicians CurrentSince Feb 27, 2025 Accepting new patients
South Nassau Communities Hospital Current Accepting new patients
North Shore Medical Group of the Mount Sinai School of Medicine Diagnostic Radiology CurrentSince Dec 12, 2025 Accepting new patients
Associated Cardiology Consultant PC Past Accepting new patients
Radiology Consulting of Long Island PLLC Diagnostic Radiology Past Accepting new patients

Locations

775 Park Ave
Huntington, NY 11743
Phone (631) 396-1595

1 Healthy Way
Oceanside, NY 11572
Phone (516) 255-1581

185 Merrick Rd
Oceanside, NY 11572
Phone (516) 255-9555

440 Merrick Rd
Oceanside, NY 11572
Phone (516) 255-8220

2020 Wantagh Ave
Wantagh, NY 11793
Phone (516) 961-4519

900 Pacific Ave
Ste 100
Everett, WA 98201
Phone (425) 304-6080

4800 Sand Point Way NE
Seattle, WA 98105
Phone (206) 526-2000

Networks

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

Interoperability endpoints

  • Direct secure messaging: stephenhenesch@snch.allscriptsdirect.net

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 14

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

View all 14

NPI Registry JSON

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

{
    "created_epoch": "1150416000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790121600000",
    "number": "1851335863",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 5918",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100875918",
            "telephone_number": "800-827-8415",
            "fax_number": "315-295-2117"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 MONTAUK HWY",
            "city": "WEST ISLIP",
            "state": "NY",
            "postal_code": "117954927",
            "telephone_number": "631-376-4027",
            "fax_number": "631-376-4046"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "263 Farmington Ave",
            "address_purpose": "LOCATION",
            "city": "Farmington",
            "state": "CT",
            "postal_code": "060302803",
            "country_code": "US",
            "telephone_number": "860-679-2784",
            "fax_number": "860-679-4126",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HENESCH",
        "first_name": "STEPHEN",
        "middle_name": "MARK",
        "credential": "D. O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-16",
        "last_updated": "2026-09-23",
        "certification_date": "2026-09-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CT",
            "license": "42479",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "NY",
            "license": "238991",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "02801009",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in West Islip, NY

Sources for this page

Verify at the official NPI Registry.