Organization Active NPI

Mary Mattheos Physician P.C.

  • Internal Medicine Physician
  • Lindenhurst, NY
National Provider Identifier
1245426550
Registry record updated Jul 14, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
Legal business name
MARY MATTHEOS PHYSICIAN P.C.
Practice address
350 W Montauk Hwy
Lindenhurst, NY 11757-5630
Phone
(631) 226-0388
NPI assigned
Sep 20, 2007
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Jul 14, 2026

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

Authorized official

Name
Dr. Mary MattheosNPI 1609977719
Title
Doctor
Phone
(631) 956-6002

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 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207R00000X Primary
Physical Medicine & Rehabilitation PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 208100000X
Physical TherapistGroup: 193200000X MULTI-SPECIALTY GROUP 225100000X

Addresses

Primary practice location

350 W Montauk Hwy
Lindenhurst, NY 11757-5630

Mailing address

350 W Montauk Hwy
Lindenhurst, NY 11757-5630
Phone (631) 226-0388

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20051216000363 NY Part B Supplier - Clinic/Group Practice 9335160423 Receives reassigned benefits from 2 practitioners
Practice locations: Lindenhurst, NY

National Provider Directory

National Provider Directory

Locations

350 W Montauk Hwy
Lindenhurst, NY 11757
Phone (631) 226-0388

Practitioners & affiliated clinicians

Practitioners 2

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

NPI Registry JSON

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

{
    "created_epoch": "1190246400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1783987200000",
    "number": "1245426550",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "350 W MONTAUK HWY",
            "city": "LINDENHURST",
            "state": "NY",
            "postal_code": "117575630",
            "telephone_number": "631-226-0388"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "350 W MONTAUK HWY",
            "city": "LINDENHURST",
            "state": "NY",
            "postal_code": "117575630",
            "telephone_number": "631-226-0388"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MARY MATTHEOS PHYSICIAN P.C.",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-09-20",
        "last_updated": "2026-07-14",
        "certification_date": "2026-07-14",
        "status": "A",
        "authorized_official_last_name": "MATTHEOS",
        "authorized_official_first_name": "MARY",
        "authorized_official_title_or_position": "DOCTOR",
        "authorized_official_telephone_number": "631-956-6002",
        "authorized_official_name_prefix": "Dr."
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "208100000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Physical Medicine & Rehabilitation",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "225100000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Physical Therapist",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Lindenhurst, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 14, 2026; 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.