Sag Medical PC

Primary specialty

Cardiovascular Disease PhysicianTaxonomy code 207RC0000X

Legal business name

SAG MEDICAL PC

Practice address

256 Grove Ave
Cedarhurst, NY 11516-1716

Phone

(516) 574-9845

NPI assigned

Jun 30, 2025

Organization subpart

No

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

Authorized official

Name

Dr. Steven Greenstein, MDNPI 1417362245

Title

Owner

Phone

(516) 574-9845

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NY

Enrollment records 1

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Steven Greenstein, M.D.

  • Cardiovascular Disease Physician
  • Oceanside, NY
  • NPI 1417362245
  Medicare reassignment NPD Authorized official

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

{
    "created_epoch": "1751241600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1755043200000",
    "number": "1306735063",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "256 GROVE AVE",
            "city": "CEDARHURST",
            "state": "NY",
            "postal_code": "115161716",
            "telephone_number": "516-574-9845"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "256 GROVE AVE",
            "city": "CEDARHURST",
            "state": "NY",
            "postal_code": "115161716",
            "telephone_number": "516-574-9845"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1050 Central Ave",
            "address_purpose": "LOCATION",
            "city": "Woodmere",
            "state": "NY",
            "postal_code": "115981618",
            "country_code": "US",
            "telephone_number": "516-574-9845",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "SAG MEDICAL PC",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-06-30",
        "last_updated": "2025-08-13",
        "certification_date": "2025-08-13",
        "status": "A",
        "authorized_official_last_name": "GREENSTEIN",
        "authorized_official_first_name": "STEVEN",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "516-574-9845",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• RS1 Occupational Therapy P.C
• Tom Rubinstein, D.M.D
• Hannah Michelle Rudansky, LCSW
• Martin Life Rudolph, DPM
• Rena B Saffra, OTR
• Samson Medical PC
• Israel Marc Samson, MD
• Geetanjali Vandana Sankar, LMHC
• Jennifer Santaniello
• Tamaki Sasa, LMHC

• Cardiovascular Disease Physician in Cedarhurst, NY
• Providers in Cedarhurst, NY by specialty
• Cardiovascular Disease Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.