Organization Active NPI

Mark Youssef a Medical Corporation

  • Plastic Surgery Physician
  • Santa Monica, CA
National Provider Identifier
1659698181
Registry record updated Nov 1, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Plastic Surgery PhysicianTaxonomy code 208200000X
License
A77473 Issued in CA
Legal business name
MARK YOUSSEF A MEDICAL CORPORATION
Practice address
1317 5TH St Ste 300
Santa Monica, CA 90401-1433
Phone
(310) 434-0044
NPI assigned
Apr 23, 2010
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Nov 1, 2025

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

Authorized official

Name
Mark Youssef, MDNPI 1225200637
Title
Direct/ Sole Owner
Phone
(818) 888-7815

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 6

Specialty (taxonomy)CodeLicenseStatePrimary
Dermatology PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207N00000X
Otolaryngology PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207Y00000X
Plastic Surgery PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 208200000X A77473 CA Primary
General Practice PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 208D00000X
Physician AssistantGroup: 193200000X MULTI-SPECIALTY GROUP 363A00000X
Nurse PractitionerGroup: 193200000X MULTI-SPECIALTY GROUP 363L00000X

Addresses

Primary practice location

1317 5TH St Ste 300
Santa Monica, CA 90401-1433

Mailing address

1317 5TH St Ste 300
Santa Monica, CA 90401-1433
Phone (310) 434-0044

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20201211000746 CA Part B Supplier - Clinic/Group Practice 7618389891 Receives reassigned benefits from 3 practitioners
Practice locations: Oxnard, CA; Santa Monica, CA

National Provider Directory

National Provider Directory

Locations

1889 N Rice Ave
Ste 201
Oxnard, CA 93030
Phone (805) 600-1550

1551 Ocean Ave
Ste 200
Santa Monica, CA 90401
Phone (310) 394-0570

1317 5th St
Ste 300
Santa Monica, CA 90401
Phone (310) 434-0044

1551 Ocean Ave
#200
Santa Monica, CA 90401
Phone (310) 434-0044

Practitioners & affiliated clinicians

Practitioners 4

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": "1271980800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1761955200000",
    "number": "1659698181",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1317 5TH ST STE 300",
            "city": "SANTA MONICA",
            "state": "CA",
            "postal_code": "904011433",
            "telephone_number": "310-434-0044"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1317 5TH ST STE 300",
            "city": "SANTA MONICA",
            "state": "CA",
            "postal_code": "904011433",
            "telephone_number": "310-434-0044"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MARK YOUSSEF A MEDICAL CORPORATION",
        "organizational_subpart": "NO",
        "enumeration_date": "2010-04-23",
        "last_updated": "2025-11-01",
        "certification_date": "2025-11-01",
        "status": "A",
        "authorized_official_last_name": "YOUSSEF",
        "authorized_official_first_name": "MARK",
        "authorized_official_title_or_position": "DIRECT/ SOLE OWNER",
        "authorized_official_telephone_number": "818-888-7815",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207N00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Dermatology",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207Y00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Otolaryngology",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "208200000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Plastic Surgery",
            "state": "CA",
            "license": "A77473",
            "primary": true
        },
        {
            "code": "208D00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "General Practice",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Nurse Practitioner",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Santa Monica, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 1, 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.