Steven Antonio Tamesis, M.D.

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

317114 Issued in NY

Practice address

100 Port Washington Blvd
Roslyn, NY 11576-1347

Phone

(516) 627-5262

NPI assigned

May 27, 2015

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other identifiers 1

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

Specialty

General Surgery

Education

Other, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

CHS Physician Partners PCGroup PAC ID 7618955667, 739 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St Catherine of Siena Hospital Hospital, Smithtown, NY, CCN 330401
• St Francis Hospital - the Heart Center Hospital, Roslyn, NY, CCN 330182
• Good Samaritan Hospital Medical Center Hospital, West Islip, NY, CCN 330286

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

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

Interoperability endpoints

• Direct secure messaging: stamesis147035@direct-chsli.net

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.

• CHS Physician Partners, PC

  • Interventional Cardiology Physician
  • Fresh Meadows, NY
  • NPI 1407089345
  Medicare reassignment Care Compare group NPD
• CHS Physician Partners, P.C

  • Cardiovascular Disease Physician
  • Roslyn, NY
  • NPI 1164585725
  NPD

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

• Good Samaritan Hospital Medical Center

  • General Acute Care Hospital
  • West Islip, NY
  • NPI 1902865355
  Care Compare affiliation
• St. Catherine of Siena Medical Center

  • General Acute Care Hospital
  • Smithtown, NY
  • NPI 1982663423
  Care Compare affiliation
• St. Francis Hospital

  • General Acute Care Hospital
  • Roslyn, NY
  • NPI 1043279565
  Care Compare affiliation

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

{
    "created_epoch": "1432684800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765584000000",
    "number": "1528447240",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2200 NORTHERN BLVD STE 125",
            "city": "GREENVALE",
            "state": "NY",
            "postal_code": "115481221",
            "telephone_number": "516-627-5262"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 PORT WASHINGTON BLVD",
            "city": "ROSLYN",
            "state": "NY",
            "postal_code": "115761347",
            "telephone_number": "516-627-5262"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TAMESIS",
        "first_name": "STEVEN",
        "middle_name": "ANTONIO",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2015-05-27",
        "last_updated": "2025-12-13",
        "certification_date": "2025-12-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "NY",
            "license": "317114",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CAQH",
            "identifier": "15161544",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Maura C Swanson
• Michael Swong, M.D.
• T & S Associates
• Barry Tabakin, M.D.
• Steven Alan Talerman, DDS
• Nancy J Tamres, LCSW-R
• Julie S Tang, MD
• Sally Tang, FNP-BC
• Beth Michelle Taylor I, PA-C
• Juliet E M Tchorbajian, DDS MS

• Surgery Physician in Roslyn, NY
• Providers in Roslyn, NY by specialty
• Surgery Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 13, 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.