Organization Active NPI

MKR Medical PC

  • Cardiovascular Disease Physician
  • Brooklyn, NY
National Provider Identifier
1417371774
Registry record updated Feb 12, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Cardiovascular Disease PhysicianTaxonomy code 207RC0000X
License
253288 Issued in NY
Legal business name
MKR MEDICAL PC
Practice address
828 Utica Ave
Brooklyn, NY 11203-3409
Phone
(718) 303-0851
NPI assigned
Feb 6, 2014
Last updated
Feb 12, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Feb 12, 2026

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

Authorized official

Name
Marc Rybstein, MDNPI 1538393822
Title
President
Phone
(516) 307-9618

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 253288 NY
Cardiovascular Disease Physician 207RC0000X 253288 NY Primary

Addresses

Primary practice location

828 Utica Ave
Brooklyn, NY 11203-3409

Mailing address

545 E Jericho Tpke
Huntington Station, NY 11746-7325
Phone (718) 303-0851

Other practice location 1

447 Fenimore Street
Brooklyn, NY 11225
Phone (718) 303-0851

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20140509000056 NY Part B Supplier - Clinic/Group Practice 8527291962 Receives reassigned benefits from 3 practitioners
Practice locations: Brooklyn, NY

Laboratory certificates & supplier records

Derived by NPIMap

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

CLIA numberLaboratoryCertificateExpires
33D2284253MKR Medical PC828 Utica Ave, Brooklyn, NY 11203Certificate of waiverJun 20, 2027

National Provider Directory

National Provider Directory

Locations

828 Utica Ave
Brooklyn, NY 11203
Phone (718) 303-0851

340 Dogwood Ave
#105
Franklin Square, NY 11010
Phone (516) 307-9617

900 Straight Path
Ste 2
West Babylon, NY 11704
Phone (631) 824-8610

Interoperability endpoints

  • FHIR API: https://fhir4.healow.com/fhir/r4/EEACCD

Practitioners & affiliated clinicians

Practitioners 3

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

NPI Registry JSON

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

{
    "created_epoch": "1391644800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1770854400000",
    "number": "1417371774",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "545 E JERICHO TPKE",
            "city": "HUNTINGTON STATION",
            "state": "NY",
            "postal_code": "117467325",
            "telephone_number": "718-303-0851"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "828 UTICA AVE",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112033409",
            "telephone_number": "718-303-0851"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "447 FENIMORE STREET",
            "address_purpose": "LOCATION",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "11225",
            "country_code": "US",
            "telephone_number": "718-303-0851",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "MKR MEDICAL PC",
        "organizational_subpart": "NO",
        "enumeration_date": "2014-02-06",
        "last_updated": "2026-02-12",
        "certification_date": "2026-02-12",
        "status": "A",
        "authorized_official_last_name": "RYBSTEIN",
        "authorized_official_first_name": "MARC",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "516-307-9618",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "NY",
            "license": "253288",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "NY",
            "license": "253288",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Brooklyn, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 12, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • 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.